Centro de Control de Motores - ABB

8/3/2019 Centro de Control de Motores - ABB

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Medium voltage products

UniGear MCCArc-proo, air insulated motor controlcenter with used vacuum contactor


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Index

4 1. Description

6 2. Air insulated switchgear

10 3. IEC Classiication

12 4. Design eatures

14 5. Full tpe-tested

16 6. Saet

20 7. VSC vacuum contactor

22 8. Instrument transormers

24 9. Measurement sensors

28 10. Cable terminations

30 11. Distribution automation

42 12. Tpical units

44 13. Technical data


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1. Description

A real 400 A load current with double uses per phase in a

400 mm wide panel. The UniGear switchgear amil is now

extended with a new motor control center solution, the

UniGear MCC. Designed or the highest degree o saet and reliabilit, the

UniGear MCC provides or maximum ease o use. All operations and maintenance actions are made rom the

ront o the panel, which is equipped with mechanical saet

interlocks between vacuum contactor and earthing switch. The vacuum contactor is the well-proven VSC tpe with

magnetic actuator.

For optimal exibilit, the UniGear MCC is designed to

be used in combination with other versions o UniGear

switchgear, such as ZS1, 550 and 500R.


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Characteristics o UniGear MCC

Range

7.2 kV, 400 A, 50 kA

IEC standards

Standard and customized versions

Features

Slim and compact panel onl 400mm wide

Fused vacuum contactor with magnetic actuator

Cable termination height up to 600mm

Safety

Fitted with saet interlocks and visible earthing connection

Internal arc classiication IAC AFLR

Classiied as LSC-2A, PM

Flexibility

Wide range o applications

Traditional and IEC 61850 based protection and control

solutions

Applications

Utilities and power plants

Substations

Power generation stations

Transormer stations

Switching stations

Main and auxiliar switchgear

Industry

Pulp and paper

Cement

Textiles

Chemicals

Food

Automotive

Petrochemical

Quarring

Oil and gas pipelines

Metallurg

Rolling mills

Mines

Marine applications

Drilling platorms

O-shore oil rigs

Cruise ships

Container ships

Tankers

Cable ships

Ferries

Transport

Airports

Ports

Infrastructure

Shopping malls

Hospitals

Educationals


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MF MF MF MF MF IF BT R MF MF MF MF MFIF

2. Air insulated switchgear

The UniGear range is now completed with the compact

contactor unit with uses, the motor control center.

UniGear MCC is the result o man ears o experience

with the design, manuacturing and application o vacuum

contactors across the entire range o industrial and utilit

installations.

This panel use a magnetic actuator o vacuum contactor and

it is designed speciicall or motor, transormer and capacitor

bank switching and protection or rated voltages up to 7.2 kV

and rated currents up to 400 A.

A real 400 A load current with double uses per phase in a

400 mm wide panel.

The vacuum contactors are capable o requent switching

with low switching over voltages. The switchgear can be

conigured to meet the actual process requirements.

Thanks to the use o uses as the main means o protection, it

can be used in installations with ault currents up to 50 kA.

This unit is able to combine maximum accessibilit o all

the components with limited dimensions available toda or

medium voltage switchgear.

The innovative integration o the components oers a solution

with extremel reduced weight and ootprint, allowing eicientuse o space in electrical installations.

The most evident characteristic o this unit is its

compactness, just 400 mm.

It thereore inds ideal application in installations with a high

number o contactor outgoing eeders or in situat ions with

ver limited space available.

The use o the contactor unit with uses is preerable to

the use o circuit-breakers when a high number o dail

operations is required.

The interrupters or use in the contactor guarantee an

extremel high number o closing and opening operations

under normal load conditions and with a maximum ratedshort-time withstand current o 6 kA.

The electrical lie o the contactor is deined as being in

categor AC3 with 100,000 operations (closing-opening),

400 A interrupted current (or more inormations please make

reerence at page 20).

The use o medium voltage protection uses strongl limits the

ault let-through energ, allowing the contactor to be used in

installations even with high ault currents.

This characteristic also helps to saeguard the levels o

insulation and increase the electrical lie o the cables and o

the connected machine.

Figure 1 : Compound configuration with UniGear ZS1


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For the same reason, the switchgear unit can use earthing

switches or the power cables with reduced making capacities

compared to the rest o the switchgear components, but

suitable in an case or the ault current available on the load

side o the uses.

The limiting properties o the uses also allow cables with

reduced cross-sections to be used or the connection

between the switchgear and the machines to be protected

(reductions between 60 and 80% can be obtained), leading to

a considerable reduction in costs.

UniGear MCC has the same overall dimensions (height and

depth) and the same main busbars arrangement as UniGearZS1 with a maximum current o 4000 A.

The unit can be coupled directl to others UniGear ZS1, 550

and 500R without the using o adaptor panel; a ver lexible

solution.

For this panel, positioning back to the wall is possible.

In act, the switchgear does not require access rom the rear

or the installation and maintenance procedures.

All the service operations are carried out rom the ront.

As a standard solution, it is possible to connect up to two cables

per phase (maximum cross-section o 240mm). The connection

height o the cables in relation to the oor is 600 mm.

The surge arresters as optional can also be inserted in the

cable area.

UniGear MCC uses ring core current transormers as the

standard solution, which are ixed onto CT Rods. On the

same CT rod can be ixed the sensors instruments.

The UniGear MCC switchgear is itted with all the interlocks

and accessories needed to guarantee level o saet or

equipment and personnel and reliabilit or the installation and

or the operators.

The operations on the vacuum contactor are perormed with

the ront door closed.

The contactor position is deined in the ollowings:

inserted:contactorinoperationpositionwithearthing

switch open

test:contactorinthemiddlepositionwitheathingswitch

open

removed:contactorinextractedpositionwithearthing

switch closed

Figure 2 : Cable connection area


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2. Air insulated switchgear

One o the main characteristics o the UniGear MCC is the

new automatic earthing switch that it is operated b the

movement o the vacuum contactor.

This device is a patented switch with rectilinear movement.

This earthing switch has been dimensioned to conduct the

rated short circuit making current o the contactor on cable

side; this means 6 kA.

The earthing switch is equipped with three pins which

connects the three phases o the cable connection sstem.

The earthing pins are electricall connected to earth b a

stranded copper conductor.

The speed o the snap action closing operation is indipendento controls.

The closure o the earthing switch is drive b the movement o

the vacuum contactor truck.

When the vacuum contactor will move rom test

to removed position the earthing switch will close

automaticall.

With the clousure o the earthing switch it will be unlocked the

possibilit to open the ront door and get access to the power

cables.

The UniGear MCC panel is itted with a ront inspection

window to veri the open or closed position o the earthing

switch.

Figure 4 : Automatic earthing switch

The earthing switch has been tested at two closing operations

at 100% o the rated short-circuit making current (6 kA).

The device is provided with auxiliar switches or signalling the

open and closed positions, operated b the rod mechanism.

The ollowing are available on request: locking magnet

ke locks or open and closed positions

padlock

Figure 3: Earthing switch front indication


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IEC electrical characteristics

Switchgear UniGear MCC

Tpe o construction Internal arc classiication IAC AFLR

Rated voltage [kV] 7.2

Insulation levels / power requenc / lightning impulse [kV] 7.2/20/60

Rated requenc [Hz] 50/60

Rated main busbar current (40 C) (3) [A] ... 4000

Rated eeder current (40 C) [A] ... 400

Rated short-time current (1) [kA x 3 s] .... 50

Arc proo withstand current (IEC 62271-200) (2) [kA x 1 s] ... 50

Tested according toIEC

Standards

The switchgear and main apparatus contained in it compl

with the ollowing Standards: IEC62271-1forgeneralpurposes

IEC62271-200fortheswitchgear

IEC62271-102fortheearthingswitch

IEC60071-2fortheinsulationcoordination

IEC60470forthecontactor

IEC60529fordegreeofprotections

Normal service conditions

The rated characteristics o the switchgear are

guaranteed under the ollowing ambient conditions:

minimumambienttemperature:5C

maximumambienttemperature:+40C

For dierent temperature ranges, please contact our ABB

sales representative

ambienthumidity:

- maximum 24 h average o relative humidit 95% RH

- maximum 24 h average o water vapour pressure 2,2 kPa

- maximum monthl average o relative humidit 90% RH

- maximum monthl average o water vapour pressure

1.8 kPa

thenormaloperationalaltitudeisupto1000mabovesea

level. For higher altitude applications, please contact our

ABB sales representative

presenceofnormal,non-corrosiveanduncontaminated

atmosphere

Degrees o protection

The degrees o protection o the switchgear conorm with

IEC 60529 Standards.UniGear MCC switchgear is normall supplied with the

ollowing standard degrees o protection:

IP4Xfortheenclosure

IP2Xforthepartitionsbetweenthecompartments.

On request, the external housing can be supplied with higher

degrees o protection; in this case, please contact our ABB

sales representative.

The electrical characteristics o the switchgear can var or

ambient conditions other than those described in the previous

section and also i a higher degree o protection is used.

Colour o the external suraces

RAL7035 - light gre. (Front doors and side sheets). Other

colours available on request.

(1) Limited b the uses.

(2) The internal arc withstand values are guaranteed on the busbar compartment; the suppl side. The ault in contactor and cable compartment is limited b the uses.

(3) 4000 A is achieved with UniGear ZS1 combination.


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3. IEC Classiication

With the release of the IEC 62271-200 standard, new defi-

nitions and classifications of Medium Voltage switchgear

have been introduced.

One of the most significant changes is that classification

of switchgear into metal-clad, compartmented and cubi-

cle types has been abandoned.

The revision of switchgear classification rules has been

based on the users point of view, in particular on aspects

like service and maintenance of the switchgear, according

to the requirements and expectations for proper manage-

ment, from installation to dismantling.

In this context, Loss of Service Continuity (LSC) has beenselected as a fundamental parameter for the user.

According to the IEC 62271-200, UniGear MCC switchge-

ar can be defined as follows.

Loss o service continuit - LSC-2A

The various LSC categories describe the possibilit o

keeping other compartments and/or panels energized while

a compartment in the main c ircuit is opened. The deined

categories are:

LSC-1: the whole switchgear shall be put outo service oropening a main circuitcompartment or normal operation

and/ornormal maintenance or or gaining access toan

switchgear components

LSC-2A: the same as LSC-1 with the exception that the

main busbars and the unctional unitsadjacent to the one

under maintenance can remain energized

LSC-2B: the same as LSC-2A with the exceptionthat the

cable compartment can remainenergized.

UniGear MCC is classiied as LSC-2A because the busbar

and contactor cable compartments are phsicall and

electricall segregated. This is the categor that deines the

possibilit o accessing the contactor/cable compartment withthe busbars and cables energized.

Partition Metallic - PM

With regard to the tpe o partitions or shutters between

live parts and an open compartment, a distinction is made

between two partition classes:

Class PM (Partition made o Metal)

Class PI (Partition made o Insulating material).

UniGear MCC is deined with PM partition class having the

segregation between compartments made o metallic sheets/

shutters.

Interlock-controlled accessiblecompartment

The ront side o UniGear MCC is classiied interlock-

controlled because the access o the compartments

containing high-voltage parts, intended to be opened or

normal operation and/or normal maintenance, is controlled b

the integral design o the switchgear.

Tool-based accessible compartment

The rear part o the UniGear MCC is classiied tool-based

because it is possible to open the compartment containing

high-voltage parts, that ma be opened, but not or normal

operation and maintenance, onl using a tool. Special

procedures are required.

Internal arc classifcation IAC AFLR

UniGear MCC switchgear is classified IAC AFLR

When the switchgear is speciied and installed, some

undamental points must be taken into consideration:

level o the ault current (16...50 kA)

duration o the ault (0.1...1s)

escape routes or the hot and toxic gases produced b

combustion o materials

dimensions o the room, with special attention to the height.

Please consult our ABB representatives or detailed

inormation.


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4. Design eatures

Compartments

Each switchgear unit consists o two power compartments

busbars [A], contactor/cables [B]; please reer to Figure 5.

The closing o the contactor/cables compartment doors is

with handle.

Each unit is itted with a low voltage compartment [C], where

all the auxiliar instruments are housed.

Arc-proo switchgear is normall provided with a duct [D] or

evacuation o the gases produced b an arc; dierent tpes o

gas ducts are available.

All the compartments are accessible rom the ront and

maintenance operations can properl carried out with the

switchgear installed up against a wall. The compartments are

segregated rom each other b metallic partitions.

Main busbars

The busbar compartment contains the main busbar sstem

connected to the upper isolating contacts o the contactor b

means o branch connections.

The main busbars are made o electroltic copper.

For ratings up to 2500A, the busbars are made o lat bars;

while or currents between 3150A and 4000A, a special D-

shape busbar is used.

The busbars are covered with insulating material.

There is a single busbar compartment along the whole length

o the switchgear, which optionall can be dividing into com-

partments.

Cable connections

The contactor/cable compartment contains the branch ss-

tem or connection o the power cables to the lower contacts

o the contactor.

The eeder connections are made o electroltic copper and

the are lat bars or the whole range o current.

Earthing switch

Each contactor/cable compartment can be itted with an

earthing switch or cable earthing.

The earthing switch has short-circuit making capacit limited

b the presence o the uses.

Control o the earthing switch is rom the movement o the

contactor with automatic operation.

The position o the earthing switch can be seen rom the ront

o the switchgear b means o a mechanical coupled indicator

and via ront inspection window.

Earthing busbar

The earthing busbar is made o electroltic copper and it runs

longitudinall throughout the switchgear, thereb guaranteeing

maximum personnel and installation saet.

Insulating bushings and shutters

The insulating bushings in the busbar compartment contain

the contacts or connection o the contactor with the busbar

compartment.

The insulating bushings are o three-pole tpe and are made

o epox resin. The shutter is metallic tpe and it is activatedautomaticall during the movement o the contactor rom the

test position to the inserted position and vice versa.


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D

B

AC

Cables

Single and three-core cables up to a maximum o two cables

per phase can be used depending on the rated voltage and

the cable cross section (please reer to page 28).

The switchgear can be back to wall installed as cables are

easil accessible rom the ront.

Gas exhaust duct

The gas exhaust duct is positioned above the switchgear and

runs along its whole length.

Each power compartment is itted with a lap on its top

surace. The pressure generated b the ault makes it open,

allowing the gas to pass into the duct.

Evacuation rom the room o the hot gases and incandescent

particles produced b the internal arc must normall be

carried out. The UniGear MCC switchgear can be itted with

a complete range o solutions to satis with all requirements,

either in the case where evacuat ion is possible directl at the

end o the switchgear, or when solutions rom the ront or rear

are requested.

Some installations, such as marine applications, do not

allow evaquation o the gases to the outside o the room and

thereore a dedicated solution has been realised to guarantee

personnel saet and conormit with the Standards, such as

longitudinal evacuation chimnes. Please contact ABB sales

representative or more inormations.

Figure 5 : UniGear MCC section view

Unit compartments

A Busbar compartments

B Contactor/cable compartment

C Low voltage compartment

D Compact gas duct channel


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Figure 6: UniGear MCC panel after internal arc test

The UniGear MCC switchgear has undergone all the tests

required by the international (IEC) Standards and local

Standards organizations (for example, the Chinese GB/DL

and Russian GOST standards).

In addition, the tests required by the main shipping

registers (LR, DNV, RINA, BV and GL) have been carried

out for use of the switchgear in marine installations.

As indicated in these standards, the tests were carried

out on the switchgear units considered most sensitive

to the effects of the tests and therefore the results were

extended across the whole range.

Each switchgear unit is subjected to routine tests in thefactory before delivery.

These tests are intended to provide a functional check of

the switchgear based on the specific characteristics of

each installation.

5. Full tpe-tested

IEC tpe tests

Short-time and peak withstand current

Temperature rise

Internal arc capabilit

Dielectric test

Making and breaking capacit o contactors

Earthing switch making capacit

Mechanical operations o contactor and earthing switch

IP degree

IEC routine actor tests Visualinspectionandcheck

Mechanicalsequenceoperations

Cablingcheck

Electricalsequenceoperations

Powerfrequencywithstandvoltage

Measurementoftheresistanceofthemaincircuits

Secondaryinsulationtest

Special tpe tests required b shipping

registers or marine application

Highambienttemperatures(+45C)

Inclination

Vibration

Description o IEC tpe tests

Short-time and peak withstand current

The test shows that the main power and the earthing circuits

resist the stresses caused b the passage o the short-circuit

current without an damage.

It should also be noted that both the earthing sstem o the

withdrawable circuit-breaker and the earthing busbar o the

switchgear are subjected to the test.

The mechanical and electrical properties o the main busbar

sstem and o the top and bottom branch connections remain

unchanged even in the case o a short-circuit.

Temperature rise

The temperature rise test is carried out at the rated current

value o the switchgear unit and shows that the temperature

does not become excessive in an part o the switchgear unit.

During the test, both the switchgear and the circuit-breaker or

contactor it ma be itted with are checked.

Internal arc capability

Please reer to page 16.


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Dielectrictest

These tests veri that the switchgear has suicient

Capabilit to withstand the lightning impulse and the power

requenc voltage.

The power requenc withstand voltage test is carried out as

a tpe test, but it is also routine test on ever switchgear unit

manuactured.

Contactormakingandbreakingcapacity

The contactor is subjected to the rated current and short-

circuit current breaking tests.

Furthermore, it is also subjected to the opening and closing o

capacitive and inductive loads, capacitor banks and/or cable

lines.

Earthingswitchmakingcapacity

The earthing switch o the UniGear MCC switchgear can be

closed under short-circuit. Although, the earthing switch is

normall interlocked to avoid being operated on circuits which

are still live.

However, should this happen or an one o several reasons,

saet o the personnel would be ull saeguarded.

Mechanicaloperations

The mechanical endurance tests o all the operating parts

ensures the reliabilit o the apparatus.

General experience in the electro-technical sector shows that

mechanical aults are one o the most common causes o a

ault in an installation.

Contactor is tested b carring out a high number o

operations - higher than those which are normall carried out

in installations in operation.

Moreover, the switchgear components are part o a qualit

program and are regularl taken rom the production lines

and subjected to mechanical lie tests to veri that the qualitis identical to that o the components subjected to the tpe

tests.

IPdegree

The IP protection degree is the resistance oered b the

UniGear MCC against penetration o solid objects and liquids.

This degree o resistance is indicated b the preix IP ollowed

b two numbers.

The irst number identiing the protection degree against the

entrance o solid objects, the second one is related to liquids.

Tpe tests required b the shipping

registers

Highambienttemperatures

The service conditions o the electrical apparatus in shipping

installations are generall more severe than those in normal

land applications.

The temperature is certainl one o these actors and or this

reason the shipping register regulations require the switchgear

to be able to operate at higher ambient temperatures (45 C

or higher) than those stated in the IEC Standards (40 C).

Inclination

The test is carried out b inclining the switchgear or a deined

time up to 25 alternativel on all our sides and operating the

apparatus.

The test proves that the switchgear is able to resist these

extreme service conditions and that all the apparatus it

contains can be operated without an problems and without

being damaged.

Vibration

The reliabilit and sturdiness o the UniGear MCC switchgear

has been deinitivel proven b the result o the withstand

test to mechanical stresses due to vibration. The service

conditions on shipping installations and marine platorms

require the switchgear to work in environments strongl

aected b vibrations, such as those caused b the motors

on large cruise ships or the drilling plants o oil rigs.

1 mm amplitude in the requenc range between 2 and

13.2 Hz.

0.7 g acceleration amplitude in the requenc range

between 13.2 and 100 Hz.


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When developing modern medium voltage switchgear,

personnel safety must necessari ly take priority. This is

why the UniGear MCC switchgear has been designed and

tested to withstand an internal arc due to a short-circuit

current of the same current level as the maximum short-

time withstand level.

The tests show that the metal housing of UniGear MCC

switchgear is able to protect personnel near the switchge-

ar in the case of a fault which evolves as far as striking an

internal arc.

An internal arc is a highl unlikel ault, although it cantheoreticall be caused b various actors, such as:

insulation deects due to qualit deterioration o the

components. The reasons can be adverse environmental

conditions and a highl polluted atmosphere

overvoltages o atmospheric origin or generated b the

operation o a component

inadequate training o the personnel in charge o the

installation

breakage or tampering o the saet interlocks

overheating o the contact area, due to the presence

o corrosive agents or when the connections are not

suicientl tightened entr o small animals into the switchgear (i.e. through cable

entrance)

material let behind inside the switchgear during

maintenance activities

The characteristics o the UniGear MCC switchgear notabl

reduce the incidence o these causes or aults, but some o

them ma not be eliminated completel.

The energ produced b the internal arc causes the ollowing

phenomena:

increase in the internal pressure

increase in temperature visual and acoustic eects

mechanical stresses on the switchgear structure

melting, decomposition and evaporation o materials

Unless suitabl protected, these phenomena have ver

serious consequences or the personnel, such as wounds

(due to the shock wave, ling parts and the doors opening)

and burns (due to emission o hot gases).

The internal arc test veriies that the compartment doors

remain closed and that no components are ejected rom the

switchgear even when subjected to ver high pressures, and

that no lames or incandescent gases penetrate, therebensuring saet o the personnel near the switchgear.

The test also ensure that no holes are produced in external

accessible parts o the housing, and inall, that all the

connections to the earthing circuit remain intact, hence

guaranteeing the saet o personnel who ma access the

switchgear ater the ault.

The IEC 62271-200 Standard describes the methods to

be used or carring out the test and the criteria which the

switchgear must conorm to.

The UniGear MCC switchgear ull conorms to all the ive

criteria indicated b the IEC standards.

The IAC classiication is proved b the test according to theollowing designations:

general: classiication IAC (Internal Arc Classiied)

accessibilit: A, B or C (switchgear accessible to authorized

personnel onl (A), to all (B), not accessible due to

installation (C)

F, L, R: access rom the ront (F Front), rom the sides (L

Lateral) and rom the rear (R rear)

test values: test current in kiloamperes (kA), and duration in

seconds (s)

The parameters o each speciic plant mean that evacuation

o the hot gases and incandescent particles must be checkedver careull in order to ensure and maintain personnel saet.

Fault limiting sstems

The structure o the UniGear MCC switchgear oers complete

passive tpe protection against the eects o a ault due to an

internal arc or a time o 1 second up to 50 kA.

ABB has also developed excellent active protection sstems

which allow ver important objectives to be achieved:

detection and extinction o the ault, normall in less than

100 ms, which improves network stabilit

limitation o damage on the apparatus

limitation o outage time or the switchgear unit.

For active protection against an internal arc, devices

consisting o various tpes o sensors can be installed in the

various compartments, which detect the immediate outburst

o the ault and carr out selective tripping o the contactor.

The ault limiting sstems are based on sensors which use the

pressure or light generated b the arc ault as t rigger or ault

disconnection.

6. Saet


17/4817

Melting of steel

Melting of copper

Melting of cables

0 100 200 500 ms

kA2 s

ITH

The ITH sensors consist o micro-switches positioned on the

top o the switchgear near the gas exhaust laps o the two

power compartments (busbars and contactor/cables).

The shock wave makes the laps open and operate the

micro-switches connected to the shunt opening release o the

contactor.

Totaltrippingtimeis45ms(15msITH+30mscontactor).

FRD (Fast Recover Device)

This sstem consists o pressure sensors located in the low

voltage compartment and connected to the three power

compartments b means o small tubes.

The sensors detect the rising ront o the pressure wave which

develops on the outburst o the arc and react b making the

circuit-breakers open.

The sensors are protected against the external environment

and the can be checked even with the switchgear in

operation.

Totaltrippingtimeis45ms(15msFRD+30mscontactor).

TVOCThis sstem consists o an electronic monitoring device located

in the low voltage compartment which is connected to optic

sensors. These are distributed in the power compartments and

are connected to the device b means o optic fbres.

When a certain pre-set light level is exceeded, the device

opens the circuit-breakers.

To prevent the sstem rom intervening due to light occasionall

generated b external phenomena (ash o a camera,

reections o external lights, etc.), current transormers can also

be connected to the monitoring device.

The protection module onl sends the opening command to the

circuit-breaker i it receives the light and short-circuit currentsignal simultaneousl.

Totaltrippingtimeis32ms(2msTVOC+30mscontactor).

Figure 7: Arc duration and damage caused

REA

This sstem oers the same unctionalit as TVOC. The REA

sstem consists o the main unit (REA 101) and optional

extension units (REA 103, 105, 107) which make it possible to

create customized solutions with selective tripping. For more

inormation, please see the dedicated chapter at page 38.

Totaltrippingtimeis32,5ms(2,5msREA+30ms

contactor).

Arc protection in IED

The REF615, RET615, REM615 and REF610 IEDs (Intelligent

Electronic Device) can optionall be itted with a ast and

selective arc lash protection. It oers a two-to three-channel

arc-ault protection sstem or arc lash supervision o the

circuit breaker, cable and busbar compartment o switchgear

panels.

Totaltrippingtimeis42ms(12msIED+30mscontactor).


18/4818

6. Saet

Figure 8 : Front view of the panel key system

The UniGear MCC switchgear is itted with all the interlocks

and accessories needed to guarantee the highest level o

saet and reliabilit or both installation and personnel.

Interlocks

The saet mechanical interlocks are standard ones [14],

please see the dedicated table at page 19.

The are stated b the IEC standards and are thereore

necessar to guarantee the correct operation sequence.

ABB saet interlocks guarantees the highest level o reliabilit,

even in the case o an accidental error, and enables highest

operator saet sstem o interlocks.

Kes

The use o ke interlocks is ver important in realising the

interlocking logics between panels o the same switchgear, or

o other medium, low and high voltage switchgear. The logics

are realised b means o distributors or b ringing the kes.

The contactor truck [5] can be locked in the removed

position and the relevant lock ke can onl be removed with,

the contactor in this position.

In this position the earthing switch is automatica ll closed, the

same ke [5] can use a lso or this lock.

The earthing switch opening [6] operation can be locked b

means o ke.

The latter can onl be removed with the earthing switch in an

opposed position to the lock to be made.

Padlocks

The contactor/cables [7] compartment door can be locked in

the closed position b means o padlock.

This can be applied to both door closing versions with

central handle (standard) or screws (optional).

The metallic segregation shutters [8] between contactor

and busbars compartments can be locked b means o two

independent padlocks in both the open and closed positions.

Padlocks rom 4 to 8 mm diameter can be accomodated.

Locking magnets

The locking magnets are used to make automatic interlock

logics without human intervention.

The contactor racking-in/out [9] operation can be interlocked.

The magnets operate with active logics and thereore the lacko auxiliar voltage leaves interlocking sstem active (in saet

conditions).


19/4819

Standard safety interlocks (mandatory)

Lock Description Condition to be fulfilled

1 A Contactor racking-in/out Contactor open

B Contactor closing Deined contactor position

2 A Contactor racking-in Contactor multi-contact plug plugged

B Contactor multi-contact plug unplugging Contactor remove position

3 A Earthing switch closing Contactor remove position

B Contactor racking-in Earthing switch open

4 A Contactor/cables compartment door opening Contactor in remove position

B Contactor racking-in Contactor/cables compartment door closed

Keys

5 Earthing switch closing Can onl be removed with the contactor in removed position

6 Earthing switch open Can onl be removed with the contactor in inserted position

Padlocks

Lock

7 Contactor/cables compartment door opening

8 Shutters opening or clos ing

Locking magnets

Lock Condition to be fulfilled

9 Contactor racking-in/out Magnet energized


20/4820

7. VSC vacuum contactor

V-Contact VSC medium voltage contactors are apparatus

suitable or operating in alternating current and are usuall

used to control eeders which require a high number o

operations per hour.

The are suitable or operating and protecting motors,

transormers and power actor correction banks. Fitted with

appropriate uses, the can be used in circuits with ault levels

up to 1000 MVA.

The electrical lie o V-Contact VSC contactors is deined

as being in categor AC3 with 100,000 operations (closing-

opening), 400A interrupted current.

The contactors consist o a monobloc o resin containing the

ollowing components:

vacuuminterrupters

movingequipment

magneticactuator

multivoltagefeeder

accessoriesandauxiliarycontacts

Figure 9 : V-Contact VSC on the service trolley

The V-Contact contactors are provided in the ollowing

versions:

VSC7/Pforvoltagesupto7.2kVinUniGearZS1

VSC12/Pforvoltagesupto12kVinUngearZS1

VSC7/PNforvoltagesupto7.2kVinUniGearMCC

Both versions are available with the operating mechanism with

SCO or DCO coniguration.

Operative mechanism

Due to the Magnetic actuator V-Contact VSC contactors have

a negligible auxiliar power requirement in all conigurations(15W inrush - 5W continuous or all conigurations).

V-Contact VSC is available in three dierents conigurations.

SCO (single command operation). The contactor close

supplng auxiliar voltage to the multivoltage eeder input,

when auxiliar is cut the contactor opens.

DCO (double command operation). The contactor close

supplng auxiliar voltage to the multivoltege eeder c losing

input and opens when opening input is supplied; anti pumping

unction is supplied as a standard.

DCO coniguration is also available, on request, with adelaed undervoltage unction. This unction allow to

automaticall open the contactor when auxiliar voltge level

drops below IEC deined levels.

Opening can be delaed rom 0 to 5 seconds (customer

setting b dipswitches).

All conigurations are suitable or 1.000.000 o mechanical

operations.

Fuses

The contactor is itted with medium voltage uses orprotection o the operated eeders.

Coordination between the contactor, uses and protection unit

is guaranteed in accordance with the IEC 60470 Standards

or apparatus in class C.

The use-holder rame is usuall preset or installation o a set

o three uses per phase with average dimensions and tpe o

striker, according to the ollowing Standards:

DIN43625

BS2692

VSC/PN is also suitable to install two BS 2692 uses in

parallel per phase.

VSC contactors cannot be used with ABB CEF-BS and BBCMF-BS uses.


21/4821

The ollowing uses can be applied:

DINtypewithalengthof192,292and442mm

BStypewithalengthof235,305,410,454and553mm

The use-holder rames are itted with a device or automatic

opening when even just one use blows. This same device

does not allow contactor closing when even a single use is

missing.

The ABB range o DIN uses or transormer protection

is called CEF, whereas CMF is the one or motors and

capacitors.

Standards

IEC60470forthecontactor

IEC60282-1forthefuses Figure 10: Double fuse according to BS standard

Electrical characteristics

VSC7/PN

Rated voltage [kV] 7.2

Rated insulation voltage [kV] 7.2

Rated power requenc withstand voltage [kV] 20Rated lighning impulse withstand voltage [kV] 60

Rated requenc [Hz] 50-60

Rated short-time withstand current [kA] ...50 (1)

Peak current [kA] ...125

Internal arc withstand current [kA x 1 sec] ...50 (2)

Maximum rated current o the contactor [A] 400

(1) Limited b the uses.

(2) The internal arc withstand values are guaranteed on the busbar compartment; the suppl side. The ault in contactor and cable compartment is limited b the uses.

Maximum performances of the contactor with fuses

7.2 kV

Motors [kW] 3000

Transormers [kVA] 4000

Capacitors (single bank) [kVAR] 3000

Rated

voltageContactor type

Fuse brand

and international

standard

Motors Transformer Capacitors (single bank)

Fuse rated

current

Contactor

operational

rated current

Fuse rated

current

Contactor

operational

rated current

Fuse rated

current

Contactor

operational

rated current

[A] [A] [A] [A] [A] [A]

7.2 kV VSC7/P ABB (DIN tpe) 315 250 200 160 315 220

SIBA (BS tpe) 250 200 250 160 250 125

VSC7/PN ABB (DIN tpe) 315 250 200 160 315 220

SIBA (BS tpe) 2x250 400 xxx xxx 2x250 250


22/4822

8. Instrument transormers

Ring core current transormers

Low voltage current instrument transormer, without primar

conductor. KORI 071 DF 12 current transormers can

be assembled on the bushing with their own insulation.

Transormers o this tpe series enable the measuring and

protection and are designed or use in indoor installations.

The number o secondar windings (1 or 2) depends on

the combination o the technical parameters (such as the

accurac class, burden, short-circuit current and overcurrent

actor) and have the posibilit to be reconnectable on the

secondar side.

Assembl procedure o the transormers on the bushings in

Unigear MCC is exactl speciied (triangle position).

These transormers compl with IEC 60044-1 standard

Figure 11: KORI ring core current transformer with CT Rod Figure 12: Application example of KORI ring core current transformer in

UniGear MCC

Terminals Ratio Burden Class

S1-S2 150/1A/A 0.5 VA 0.5/5P40

S1-S3 400/1A/A 0.5 VA 0.5/5P40S1 S2 S3

S1 S2 S3

P1 P2

Terminal marking


23/4823

4X

8,50

Technical data

Type (low voltage current transormer or medium voltage application) KORI

Highest voltage or equipment Um [kV] 0.72

Power requenc test voltage 1min [kV] 3

Rated insulation level [kV] 0.72 / 3 / -

Rated requenc n [Hz] 50 / 60

Rated primar current [A] 10 - 400

Rated secondar current [A] 1 or 5

Rating short-time thermal current Ith 3s [kA] 50.0

Rating peak current Idn [kA] 125.0

Accurac classes [kA] 0.2, 0.2S, 0.5, 0.5S, 1, 5P, 10PBurden [VA] 1 - 20

Highest voltage o a sstem [kV] 12 kV b using CT ROD

Flammabilit class B

KORI072GH8currenttransformersaredesignedforABBswitchgeartypeUniGear550

and have the following dimensions.

Rating Plate

90

180

180

156

156

29

S1 S2

59

180

P1

1

20

1

5

4

0


24/4824

is

Us

9. Measurement sensors

Figure 13: Linearity of advanced ABB sensors and example of output signal waveforms compared to conventional saturated CT

Electronic instrument transormers

Future or measuring currents and voltages in intelligent

UniGear is a low-power instrument transormer (according to

present IEC standards the belong to the group o Electronic

instrument transormers) called a sensor or short. These

products replace conventional instrument transormers.

The characteristic eature o advanced ABB sensors is

the level o output signal, which is ull adapted to it new

microprocessor-based equipment without the need o having

unnecessar power.

The analogue output signal level depends on the principle

used and can be in the range o mV or current sensor (tpical

value is 150 mV at rated primar current).

The UniGear MCC can be itted with one KECA ring tpe

current sensor.

Secondar

output

Saturation level

10A 100A 1000A 10 000A Primar current

ABB sensor

Standard CT

Characteristics o the sensors

Construction o current sensors is done without the use o

erromagnetic core. This act results in several important

beneits or the user and the application:

sensor behavior is not inluenced b non-linearit and

width o hsteresis curve; that results in accurate and

linear response over a wide dnamic range o measured

quantitites

single device/sensor could be used or both protection and

or measurement purposes (no need or a separate design/

product)

there are no hsteresis losses, so sensors are having

excellent requenc response also at requencies dierent

rom the rated one, thus providing ver precise input to

protection unctions, allowing more precise ault analsis

and eicient ault location.


25/4825

sensors do not have dangerous states in operation (no

problem to keep output short-circuited or let open),

resulting in high saet or surrounding devices and

personell. The output signal remains ver low even in ault

situations o the network.

the use o sensors disable the possibilit o related

erroresonance phenomena, thus even more increasing the

saet and reliabilit o the power network; urthermore,

there is no need or additional protection equipment, special

burden or wiring.

ABB sensors are connected to the measurement and

protection evaluation devices b means o shielded cablesand connectors, providing a high degree o immunit to

electromagnetic disturbances.

Accurac o these sensors is veriied and tested including the

cabling, so precise inormation is assured up to the evaluation

device. Furthermore, the use o ABB sensors and ABB relas

enables to guarantee the overal sstem accurac, i.e. to

guarantee the accurac o ull measurement chain = sensors

together with IED, to be better than 1%.

Figure 14: KECA ring core type sensor

Benefts o the sensors

Due to the linear response and wide dnamic range, sensors

are much more standardized devices (compared to a number

o dierent designs o CTs). Thereore, it is much easier to

select the appropriate design (it simpli engineering tasks)

and there could be also reduction in spare parts on user side.

Signiicantl decreased power consumption during operation

o sensors due to negligible losses introduced b sensors

(no iron = no hsteresis losses; less winding and negligible

output current = small losses in sensor winding) results in

huge savings or lost energ and minimized temperature rise

(thus improving temperature conditions and ageing within

application). It also results in signiicantl lighter devices,

having weight onl a raction o that provided b conventional

CTs. Thereore, no special machines/tools are needed to car

them and transport costs can be smaller.

Fast connection o sensors to IEDs without an tools and

material needed simpli and reduce assembl eort.


26/4826

9. Measurement sensors

Current sensor

The current sensor is based on Rogowski Coil principle.

Rogowski Coil work in the same manner as conventional iron-

core current transormers (CTs). The main dierence between

Rogowski Coils and CTs is that Rogowski Coil windings are

wound over a non-magnetic core, instead o over an iron

core. As a result, Rogowski Coils are linear since the non-

magnetic core cannot saturate. Rogowski Coils produce

output voltage (US) that is a scaled time derivative o the

measured primar current (IP).

Figure 15: Working principle of Rogowski Coil

Integration o the current sensor output signal is perormed

within the connected IED in order to obtain the inormation

about actual current value.

Output voltage is phase shited o 90 rom the primar

current waveorm.

Thereore, or simple and rough inormation about the

measured current signal, it is possible to use voltmeters with

high input impedance. Nevertheless, more exact and precise

inormation under transient conditions, content o dierent

requenc components or current waveorm distortions

that appears in electric power network requires integration

o voltage signal comming out o Rogowski Coil. This

unctionalit is alread available inside o IEDs provided b

ABB, so ver precise measurement o the primar current isavailable.

Output voltage o Rogowski Coil linearl depends on

requenc, thereore rated value o output voltage is 150mV

at 50Hz and 180mV at 60Hz. Once the rated requenc is

set in the IED, sensor provides precise inormation about the

measured primar current signal even or dierent harmonics

(no hsteresis losses and no saturation applies) and thus

correct perormance or all protection unctions is assured.

In theor, response o Rogowski coil output is linear in

unlimited dnamic range o the measured primar current.

Constraints in their use originates rom other limitations, e.g.application size, ixations etc. Onl single coil is suicient to

cover whole range o primar currents needed, e.g. KECA

250B1 tpe has been successull tested up to 2000A

continuous thermal current.

The conorm to the IEC 60044-8 standard.


27/4827

Outer dimensions o KECA

L=500050

7

0

69

8.5

1

47

123

176

123 2920

37.5

90 P2P1


28/4828

10. Cable terminations

Terminations or polmeric insulated

cables 1 7.2 kV

General

It is crucial that power cables connecting the switchgear

are terminated properl, and or this purpose, ABB have

developed an excellent range o eas-to-use products or

preparation and termination o cables.

MV power cables are normall designed with a conductor o

aluminium or copper, an insulation o polmeric material, anextruded insulation screen, a metallic screen, an armouring

(optional) and a polmeric outer jacket.

To enable sae and reliable current carring properties, it

is necessar to achieve suicient mechanical connection

between the cable conductor and the bus bar. ABB oer

mechanical cable lugs designed to it the cable conductor b

means o bolting technique.

It is also essential to guide the electrical ield o the cable in a

proper wa, and ABB oer Cold Applied terminations, made

o rubber, that create an active pressure around the cable.

Furthermore, i the cable is designed with another tpe ometallic screen than copper wires, special earthing kits must

be used to achieve proper handling o possible ault currents.

The armouring o the cable shall have the same earth

potential as the cable screen, wh it might be necessar to

use additional connection material that also can be oered.

Detailed inormation can be ound in separate technical

inormation or cable accessories.

Applications and features

Depending on cable design, it is necessar to use the

correct tpe o cable accessor. When single core cables are

designed with copper wire screen onl, it is suicient to use

just a cable lug and a termination that its the actual size o

the cable.

The beneit with Cold Applied accessories means that no

heat or open lame is necessar or the installation (except or

branch seals on 3-core cables). Ater the cable is prepared,

the termination is simpl slid on without an tools. I a three

core cable is used, or a cable with copper tape screen,

or aluminium oil screen, or a cable with armouring; thenadditional material is required.

Another ver important actor is to prepare the cable in a

proper wa, and ABB a lso oer excellent cable preparation

tools.

Recommended cable termination products

The pre-moulded cable termination tpe Kabeldon SOT can

be used on an polmeric cab le irrespective o design or

conductor size. Tpe SOT 10 is designed or 7.2 kV cables.

A ew variants o terminations it a wide range o cable sizes.

Extra material such as earthing kits, c rutch seals or 3-core

cables and screen potential material or cable armouring is

also within the ABB range o products.

Kindl contact ABB Sales Representative or more

inormation.


29/4829

Figure 16: Kabeldon cable termination type SOT 10 with bi-metallic cable

lug type SKSB

Figure 17: Kabeldon cable termination type SOT 24 with bi-metallic cable

lug type SKSB

Designaton and sizes

Voltage level

kV

Designation

Kabeldon

Diameter

over insulationmm

Conductor size

mm7.2 kV

1 7.2 SOT 101 10.5 15 10 35

1 7.2 SOT 102 12.9 25.8 50 150

1 7.2 SOT 103 21.4 34.9 185 300


30/4830

11. Distribution automation

ABBs Power Protection Philosoph

With deliveries o protection IEDs (Intelligent Electronic

Devices) to more than 70 countries, ABB best understands

the requirements o diverse protection needs as a result

o wide ranging local legislation, saet requirements and

engineering practices. Thereore, ABB has developed a power

protection philosoph that not onl serves the speciic needs

and requirements o diverse power sstems, but also creates

a eeling o conidence and peace o mind or both power

sstem owners and users alike.

The main purpose o an ABB IED power protection sstem

is to recognize an abnormal power sstem conditions, or

abnormall operating components within the power sstem.

Then, based on the inormation gathered b the IED, the

power protection sstem will initiate corrective actions to

return the power sstem to its normal operating state, or,

isolate the ault to limit damage to the power sstem and

injur to personnel. This provides a sae environment or all.

Power protection sstems do not prevent power network

aults rom arising, but it will be activated onl when an

abnormalit has occurred in the power sstem. However,

careull matching the available protection unctionalit oered

b ABB IEDs to the speciic power protection requirements

o the power sstem and its components not onl provides

the best power protection or the power sstem, but also

improves the perormance and the reliabilit o the power

protection sstem within it, thus minimizing the eects opower network aults and preventing the abnormalities or

disturbances rom spreading to the health parts o the power

network.


31/4831

Figure 18: Comparison between standard and high requirement feeders

Advantages o a complete power

protection sstem

Operating speed, sensitivit, selectivit and reliabilit are

the integral elements o the power protection sstem and

need mentioning. There is a strong correlation between

the operating speed o the power protection sstem and

the damage and danger caused b a power network

ault. Substation automation provides remote control and

monitoring capabilities, which speeds up the location o

aults, and thereore the restoration o the power suppl

ater a ault.Fast operation o the power protection IEDs alsominimizes post-ault load peaks, which together with voltage

dips increase the risk o the power d isturbance spreading

to health parts o the power network. The sensitivit o the

power protection must be adequate to detect relativel high

resistance earth aults and short circuits in the most distant

parts o the power network. Reliable selectivit is essential

in order to limit the loss o power suppl to as small an area

as possible, and to allow the abnormal or aulted part o the

power network to be reliabl located.

Corrective actions can then be directed to the abnormal or

ault part o the network, and the suppl can be restored as

rapidl as possible.

The power protection sstem must also have a high degree

o reliabilit. This also means that i or example a CB (circuit-

breaker) ails to operate, the backup power protection willidenti the ault and react.

Substation Automation (SA) puts the operator in perect

control o the substation. In addition to the SA sstem

improving the power qualit o the power transmission

and distribution network under normal operation, it

especiall improves the qualit o the power transmission

and distribution networks available power in a situation o

disturbance and during substation maintenance. A SA sstem

or SCADA (supervisor control and data acquisition) sstem

brings the ull beneits o numerical technolog into protection

and control o power networks. The terminals are easil set

and power protection parameters conigured to the speciicneeds o the power sstem through eas and sae access via

the operators workplace.

Single-unction and multi-unction

terminals

Correct power protection methods and comprehensive

unctionalit increase the perormance o the power protection

sstem.

The deinition o comprehensive unctionalit varies with the

requirements o the protected power network or sstem.

While single-unction power protection IEDs are suicient orsome network applications, more complex power networks

and sstems need advanced multi-unctional power protection

IEDs. Single-unction Power protection IEDs include a set o

power protection unctions or, or instance, a speciic eeder

application tpe.

The main advantages o these power protection IEDs are

redundanc and price. One or more single-unction power

protection IEDs would provide suicient protection in most

power protection application areas.

Highrequirement

Feedertype

IEDF

eature

s

Standard requirement

Infeed from both ends

Ring main feeders

Parallelfeeders

Feeders with

distributed

generation

Radial feeders

with reclosers/

sectionalizers

Radial

feeders

Distance

protection

Single line

diagramHMI*

Fault locator

Powerquality

monitoring

Communication

Auto re-closure

Single function * Human Machine

Interace


32/4832


Transormer protection

The power transormer is one o the most important

components, as well as one o the most valuable individual

units in the power distribution network.

Thereore, the particular importance o preventing

disturbances in the power distribution sstem is almost

completel dependent on a unctioning power transormer.

Although high-qualit power transormers are highl reliable,

insulation breakdown aults occasionall occur. These aults,

appearing as short circuits and/or earth aults generall cause

severe damage to the windings and t ransormer core. The

damage is proportional to the ault clearing time so the power

transormer must be disconnected as quickl as possible.

The power transormer has to be transported to a workshop

or repair, which is a ver time-consuming process. The

operation o a power network where the power transormer

is out o service is alwas cumbersome. Thereore, a power

transormer ault oten constitutes a more severe power

sstem ault than a line ault, which usuall can be rectiied

rather quickl. It is extremel important that ast and reliable

protection IEDs are used to detect transormer aults and

initiate tripping.

The size, voltage level and importance o the power

transormer determine the extent and choice o monitoring

and protection devices to be used to limit the damage at a

possible ault. When compared to the total cost o the power

transormer and the damages caused b a power transormer

ault, the cost o the power protection sstem is negligible.

Recommended products

The recommended products or transormer protection are

part o ABBs Relion product amil o power protection

IEDs. These IEDs have been developed ater man ears

o experience gathered rom wide ranging application and

unctionalit requirements o ABB customers globall.

The popular RE500 series IEDs also plaed a big part in

ABBs success in this area.

Relion products have been designed to implement the

core values o the IEC 61850 standard. The genuine

implementation o the IEC 61850 substation communication

standard covers vertical as well as horizontal communication

between IEDs.

Figure 19: Transformer protection and control RET630


33/4833

TransformerProtectionandControlRET615 is a

dedicated transormer protection and control IED or two-

winding power transormers, unit and step-up transormers

including power generator-transormer blocks in utilit and

industrial power distribution sstems.

RET615 oers eight standard conigurations to match applied

transormer neutral earthing principles with either high

impedance or numerical low impedance restricted earth-ault

protection schemes. CT ratio dierences and phase shits o

all commonl emploed power transormer vector groups are

numericall compensated or. RET615 eatures also local or

remote control o the transormer HV side circui-breaker.

TransformerProtectionandControlRET630 is a

comprehensive transormer management IED or protection,

control, measuring and supervision o power transormers,

unit and step-up transormers including power generator-

transormer blocks in utilit and industr power distribution

networks. It provides main protection or two-winding power

transormers and power generator-transormer blocks.

Two predeined conigurations to match our tpical

transormer protection and control speciications are available.

The pre-deined conigurations can be used as such, or the

IED can easil be modiied or unctionall extended with reel

selectable add-on unctions to help ine-tune the IED to meeteven the most demanding individual application requirements

-exactl.

Figure 20: Transformer protection and control RET615


34/4834


Motor protection

Motor protection is generall expected to provide overcurrent,

unbalance, earth-ault and short-circuit protection. However,

the undamental issue or motors is thermal protection, as

overheating is the worst threat to the motor.

Motors need to be protected not onl against electrical aults

but also against an improper usage. ABBs solutions ocus

on advanced thermal protection that prevents improper use

o the motors. The thermal overload protection is needed

to protect the motor against both short-time and long-time

overload and so it is o great importance or the perormance

o the motor. Overload conditions o short duration mainl

occur during motor start-up.

Improper use o a running motor does not necessaril damage

the equipment but shortens its liespan. Thereore, a reliable

and versatile motor protection sstem not onl protects

the motor but it also prolongs the motors lie-ccle, which

contributes to improving the return on investment o our

motor drive.

Figure 22: Motor protection and control REM615


The recommended products or motor protection are part o

ABBs Relion product amil o power protection IEDs.

These IEDs have been developed ater man ears o

experience gathered rom wide ranging application and

unctionalit requirements o ABB customers globall.

The popular RE500 series IEDs also plaed a big part in

ABBs success in this area.

Relion products have been designed to implement the

core values o the IEC 61850 standard. The genuine

implementation o the IEC 61850 substation communication

standard covers vertical as well as horizontal communication

between IEDs.

MotorProtectionandControlREM630 is a

comprehensive motor management IED or protection,

control, measuring and supervision o medium and large

asnchronous motors in medium voltage industrial power

sstems.

REM630 is a member o ABBs Relion product amil and

a part o its 630 product series characterized b unctional

scalabilit and lexible conigurabilit. It also eatures

necessar control unctions required or the management o

industrial motor eeder bas.

Figure 21: Motor protection and control REM630


35/4835

Figure 23: Motor protection REM610

REM630 provides main protection or asnchronous motors

and the associated drives. The motor management IED

is intended or circuit-breaker and contactor controlled

medium sized and large asnchronous motors in a variet

o drive applications, such as motor drives or pumps,

ans, compressors, mills, crushers, etc. The pre-deined

coniguration can be used as such or easil customized or

extended with add-on unctions, b means o which the motor

management IED can be ine-tuned to exactl satis the

speciic requirements o our present application.

MotorProtectionandControlREM615 is a dedicatedmotor IED perectl aligned or the protection, control,

measurement and supervision o asnchronous motors in

manuacturing and process industr. Tpicall, REM615 is

used with circuit-breaker or contactor controlled HV motors,

and contactor controlled medium sized and la rge LV motors

in a variet o drives. REM615 is available in three standard

conigurations including all the basic motor protection

unctions, voltage protection unctions and power and energ

measurements. Local or remote start/stop control o the

motor is also acilitated.

MotorProtectionRelayREM610is a motor IED or the

protection, measuring and supervision o medium sized and

large asnchronous LV motors and small and medium-sized

asnchronous HV motors in manuacturing and process

industr.

The REM610 IED can be used with both circuit-breaker and

contactor-controlled motor drives in a variet o applications.

Enhanced with an optional add-on card or RTD sensors

or thermistor elements, the IED can be used or direct

temperature measurement o critical motor items, such as

bearings and windings. It is also used or the protection o

cable eeders and d istribution transormers beneiting romthermal overload protection besides phase overcurrent

protection, earth-ault protection and phase unbalance

protection.


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Station automation COM600

COM600, ABBs station automation device, is an all-in-

one communication gatewa, automation platorm and

user interace solution or utilit and industrial distribution

substations.

The gatewa unctionalit provides seamless IEC61850

connectivit between substation IEDs and network-level control

and management sstems.

The automation platorm with its logic processor makes

COM600 a exible implementation platorm or substation

level automation tasks. As a user interace solution COM600

accommodates web technolog based unctionalities providing

access to substation devices and processes via a web browser

based human machine interace (HMI).

Figure 24: Station Automation COM600

Product

The Station Automation COM600 oers web server

unctionalit, providing a human machine interace (HMI) or

local substation monitoring and control. Secure communication

enables the access o the substation HMI over the internet

or LAN/WAN or an authorized user with a standard PC and

a web browser. B connecting a laptop computer to the unit

locall, an HMI or ull monitoring and control unctionalit is

obtained on the substation level.

The Station Automation COM600 also provides gatewa

unctions or mapping data and signals between substation and

higher-level sstems such as SCADA, DSC.

The COM600 is designed or smooth sstem integration and

interoperabilit based on pre-confgured solutions utilizing

connectivit packages or ABB IEDs.


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WAN

REF610 REF610 REF615 REF615REF601 REF601

GPS

LAN1

Application and eatures

With their compact and robust design, the COM600 is well

adapted or harsh environments. It meets the IP4x degree

o protection b enclosure and contains no moving parts

subject to wear and tear. The COM600 is based on embedded

technolog or durabilit and maximum availabilit. The eatures

and compact dimensions o the COM600 enable it to be easil

installed in the Low Voltage Compartment o most UniGear

ZS1 panels. COM600 is suitable or both industrial and utilit

applications.

The COM600 incorporates OPC Server unctionalit, which

provides one entr point to all the inormation o a substation,

and the IEC 61850 support enables connectivit and seamless

communication with application-specifc equipment.

Figure 25: Overview of a system using Station Automation COM600

The COM600 is ull compliant with the IEC 61850 standard

or distribution automation. Thus it provides ull interoperabilit

with an IEC 61850 compliant IEDs, tools and sstems, which

simplifes sstem design and commissioning.

The commissioning o ABB IEDs is straight orward due to the

support o ABBs unique connectivit package concept, which

simplifes sstem confguration and reduces the risk o errors

in the sstem integration, minimizing device confguration and

set-up times.

For more detailed inormation, the technical and product guides

or COM600 are available at:http://www.abb.com/substationautomation

Ethernet switch

Ethernet switch

OPC Client/Server

Serial protocols

(DNP3, IEC 60870-5-101)

TCP/IC protocols

(IEC 61850, DNP3,

Modbus)

Serial protocols

(Modbus)

Secondar distribution switchgear

DISTRIBUTED

CONTROL

SySTEM

EMS/

SCADA

REMOTE AC-

CESS-

ENGINEERING


38/48


39/4839


ArcprotectionsystemREA101 with its extension units

REA 103, REA 105 and REA 107 are designed to be used

or the protection o medium and low-voltage a ir-insulated

switchgear.

The central unit tpe REA 101 operates independentl or

together with other REA 101 units. REA is the astest arc

protection sstem on the market, providing tripping times

down to 2.5 ms.

REA is equipped with a ast integrated overcurrent-sensing

element and is thus working independentl rom other eeder

protection units.

The REF615 and REF610 eeder protection IEDs include an

optional arc protection unction or the eeder cubicle.

Figure 27: Typical setup with REA 101 and subunits 103


40/4840

Selection table o relas

* With interace protocol converter

** HMI - Human Machine Interace

*** RTD - Resistive Temperature Detector

**** 27 i outputs are static outputs

1) REU615 with A coniguration, or voltage and requenc based protection

2) REU615 with B coniguration, or tap changer control

o = optional

s = secondar application

ApplicationREM RET REA

610 615 630 54_ 615 630 54_ 10_

Voltage based protection

Feeder application (Incomming and/or Outgoing) s

High requirement eeder application

Transormer application s

High requirement transormer application

Motor protection

High requirement motor protection

Generator & snchronous motor protection

Distance protection

Line dierential protection

Back-up Protection

rc protection o o

Communication Protocols

IEC61850-8-1 * * *

IEC60870-5-103

DNP 3.0

SPA

LON *

Modbus

Proibus * * *

Additional Functionalit

Fault locator

Auto re-closure

On load tap changer control

Disturbance recording

Withdrawable release mechanism

Single line diagram HMI**

Local control

Remote control

Condition monitoring

Power qualit monitoring

Analog inputs (VT/CT) -/4 -/5 4/5 -/7 3/9 -/3

Sensor inputs

Binar Inputs / Outputs 5/8 12/10 32/27 14/13 32/27 1/3

RTD*** / mA inputs 6 / - 6/2 8 / - 6 / 2 8 / -

mA outputs



41/4841


42/4842

Single-line diagram o tpical units

MF - Across the line motor starting TF - Transformer feeder CF - Capacitor bank feeder Reverseoperation*)

Star-deltamotorstarting*) Reactormotorstarting*) Auto-transformermotorstarting*)

M M

M M M

Note

*) Available in 2012

12. Tpical units


43/4843

Graphical smbols

Switch-disconnectorCircuit-breaker Contactor Socket and plugSwitch Isolating bar

FuseVoltage transformers Current transformers Busbar entryEarth Cable entry

Standard components Accessories Alternative solutionsKey to components


44/4844

Unit compartments

A - Contactor and cable compartment

B - Busbar compartment

C - Low voltage compartment

D - Gas duct channel

Width Depth

Height(1)

Heightwithgasexhaustduct

A

C C

A

B

D

D

Depth mm 1340

Height mm 2200 / 2595 (1)

Height with gas exhaust duct mm 2675 (2)

Width mm 400

Rated current A 400

MF

TF

CF

Typical feeder unit

(1) The height o the unit is a unction o the height o the low voltage compartment,

available in the 705 and 1100 mm versions.

(2) Other solutions are available, please contact our ABB representative.

13. Technical data

Units: 7.2 kV - 50 kA


45/4845

Notes


46/4846

Notes


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Contact us

Your sales contact: www.abb.com/contacts

More product information: www.abb.com/productguide

The data and illustrations are not binding. We reserve the right to make changes

without notice in the course o technical development o the product.

Copright 2011 ABB. All rights reserved.1VCP000405-Rev.

A

,en-Tec

hnicalcatalogue-2011-10-(UniGearMCC)gs

Documents

Centro de Control de Motores - ABB