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469 SR Motor Protection System

2www.GEMultilin.com

52

BUS

50 50G

2

27

R1TRIP

59 47 81

METERINGV,A,W,Var,VA,PF,Hz

55

50

50G 51G

51 49 37 66 46

78

87

49

38RTD

AMBIENT AIR

3

3

STATOR RTDs

BEARING RTDs

MOTOR

14

14

LOAD

TACHOMETER

DCMA

74

86

START

RS232RS485RS485

806807A7.cdr

4 ANALOG INPUTS

4 ISOLATEDANALOGOUTPUTS

R6SERVICE

R5BLOCKSTART

R4ALARM

R3AUXILIARY

R2AUXILIARY

469Motor Management System

Ethernet

469 Motor Protection System

Protection and ControlThe 469 is a digital motor protectionsystem designed to protect and managemedium and large motors and drivenequipment. It contains a full range of selectively enabled, self containedprotection and control elements asdetailed in the Functional Block Diagramand Features table.

Motor Thermal ModelThe primary protective function of the 469is the thermal model with six key elements:

Overload CurvesUnbalance BiasingHot/Cold Safe Stall RatioMotor Cooling Time ConstantsStart Inhibit and Emergency RestartRTD Biasing

Overload CurvesThe curves can take one of three formats:standard, custom, or voltage dependent.For all curve styles, the 469 retains thermalmemory in a thermal capacity usedregister which is updated every 0.1 second.

The overload pickup determines where therunning overload curve begins.

The 469 standard overload curves are of standard shape with a multiplier value of 1to 15.

The voltage dependent overload curvesare used in high inertia load applications,where motor acceleration time canactually exceed the safe stall time andmotor thermal limits. During motoracceleration, the programmed thermaloverload curve is dynamically adjustedwith reference to the system voltage level.

The selection of the overload curve typeand the shape is based on motor thermallimit curves provided by motor vendor.

TYPICAL CUSTOM CURVE6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR

10000

1000

100

10

1.0

0.10.5 1.0 10 100 1000

806803A5.cdr

MULTIPLE OF FULL LOAD CURRENT SETPOINT

T I M E T O T R I P I N S E C O N D S

1

1

2

2

3

3

4

4

5

5

PROGRAMMED 469 CUSTOM CURVE

RUNNING SAFETIME (STATOR LIMIT)

ACCELERATION SAFETIME (ROTOR LIMIT)

MOTOR CURRENT @ 100% VOLTAGE

MOTOR CURRENT @ 80% VOLTAGEFunctional Block Diagram

14 Speed switch19/48 Reduced voltage start and

incomplete sequence27/59 Undervoltage/Overvoltage

32 Reverse powerMechanical JamAcceleration timeOver Torque

37 Undercurrent /Underpower38 Bearing RTD46 Current Unbalance47 Phase Reversal49 Stator RTD50 Short circuit backup

50G/51G Ground overcurrent backup51 Overload55 Power factor66 Starts/hour and time be tween

starts81 Frequency86 Overload lockout87 Differential

DEVICE PROTECTION

15CURVE

1297

43

2

1

10

PHASE CURRENT(multiples of full load)

1FullLoad

Setpoint

0.1

10,000

1,000

100

T R I P T I M E ( s e c o n

d s )

10

1

819765A8.cdr

Typical custom overload curve.

Fifteen standard overload curves.

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212 www.GEMultilin.com


Unbalance (Negative SequenceCurrent) BiasingNegative sequence current, which causesrotor heating, is not accounted for in thethermal limit curves supplied by the motormanufacturer. The 469 measures unbalanceas the ratio of negative to positivesequence current. The thermal model isbiased to reflect the additional heating.Motor derating due to current unbalancecan be selected via the setpoint unbalancebias k factor. Unbalance voltage caus-es approximately 6 times higher level of current unbalance (1% of voltage unbalanceequal to 6% of current unbalance). Notethat the k=8 curve is almost identical to theNEMA derating curve.

Motor derating factor due to unbalanced voltage

Hot/Cold Safe Stall RatioThe Hot/Cold Safe Stall time ratio definesthe steady state level of thermal capacityused (TCU) by the motor. This levelcorresponds to normal operating

temperature of the fully loaded motor andwill be adjusted proportionally if motorload is lower then rated.

Hot/Cold Safe Stall ratio is used by therelay to determine the lower limit of therunning cool down curve and also defines

the thermal capacity level of the centralpoint in RTD Biasing curve.

Exponential cooldown (hot/cold curve ratio 60%).

Motor Cooling Time ConstantsWhen the 469 detects that the motor isrunning at a load lower then overloadpickup setpoint, or the motor is stopped, itwill start reducing the stored TCU value,simulating actual motor cool downprocess. TCU decays exponentially at arate dictated by Cooling Time Constantssetpoints. Normally the cooling downprocess of the stopped motor is muchslower then of running motor, thus runningand stopped cooling time constantssetpoints are provided in the relay toreflect the difference.

The TCU lower limit of the running cooldown curve is defined by Hot/Cold SafeStall Ratio and level of the motor load. TheTCU lower limit of the stopped cool downcurve is 0% and corresponds to motor atambient temperature.

Start Inhibit and Emergency RestartThe Start Inhibit function prevents startingof a motor when insufficient thermalcapacity is available or motor startsupervision function dictate the startinhibit. In case of emergency the thermalcapacity used and motor start supervisiontimers can be reset to allow the hot motorstarting.

RTD Bias curve.

RTD BiasingThe relay thermal replica operates as acomplete and independent model. Thethermal overload curves are based solely

on measured current, assuming a normal40C ambient and normal motor cooling.The actual motor temperature will increasedue to unusually high ambient temperature,or motor cooling blockage. Use the RTDbias feature to augment the thermal modelcalculation of Thermal Capacity Used,if the motor stator has embedded RTDs.

The RTD bias feature is feedback of measured stator temperature. This feed-back acts to correct the assumed thermalmodel. Since RTDs have a relatively slowresponse, RTD biasing is useful for slowmotor heating. Other portions of the

thermal model are required during startingand heavy overload conditions whenmotor heating is relatively fast.

For RTD temperatures below the RTD BIASMINIMUM setting, no biasing occurs. Formaximum stator RTD temperatures abovethe RTD BIAS MAXIMUM setting, thethermal memory is fully biased and forcedto 100%. At values in between, if the RTDbias thermal capacity used is highercompared to the thermal capacity usedcreated by other features of the thermalmodel, then this value is used from thatpoint onward.

1.00

0.95

0.90

0.85

0.80

0.75

0.700

PERCENT VOLTAGE UNBALANCE derafacta2.cdr

D E R A T I N G F A C T O R

1 2 3 4 5

k=2

k=4

k=6

k=8

k=10

R T D T h e r m a

l C a p a c

i t y

U s e

d ( % )

RTD Bias Maximum

RTD Bias MinimumRTD Bias CenterPoint

100

90

80

70

60

50

4030

20

10

0-50 0 50 100 200 250150Maximum Stator RTD Temperature (C)

806809A4.cdr

T h e r m a l

C a p a c

i t y

U s e

d

Time in Minutes

100

75

50

25

00 50 100 150 200 250

806810A3.cdr

Iavg @ 100% FLA

Iavg @ 50% FLA

806805A3.cdr

HIGH INERTIA LOAD OVERLOAD CURVES8800 HP, 13.2 kV, REACTOR COOLANT PUMP

OVERLOAD THERMAL LIMIT

ACCELERATION INTERSECTION@80% V

ACCELERATION THERMAL LIMIT

ACCELERATION INTERSECTION @100% V

CUSTOM CURVE

MOTOR ACCELERATIONCURVE

SAFE STALL TIME@80% V

SAFE STALL TIME@100% V

MULTIPLES OF FULL LOAD AMPS

LOCKED ROTOR THERMAL LIMIT

T I M E T O T R I P ( S E C O N D S )

1000900800700600

500

400

300

200

10090807060

50

40

30

20

109876

5

4

3

2

1

1 2 3 4 5 6 7 8

An example of a voltage dependent overload

curve; in this example the user has set theminimum voltage to 80%.

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Motor Start SupervisionMotor Start Supervision consists of thefollowing features: Time-Between-Starts,Start-per-Hour, Restart Time.

These elements intend to guard the motoragainst excessive starting duty, which arenormally defined by motor manufacturerin addition to the thermal damage curves.

Mechanical Jam and AccelerationTimeThe two elements are used to prevent amotor damage a t t he abnorma loperational conditions: such as too longacceleration time and stalled rotor.

Phase Differential ProtectionThis function is intended to protect thestator windings and supplying power

cables of large motors. Two types of current transformers connections aresupported:

6 CT's externally connected in thesumming configuration.3 Flux Balancing CT's.

Separate trip pickup levels and time delaysare provided for motor starting andrunning conditions.

Short Circuit TripThis function is intended to protect thestator windings of the motors against

phase-to-phase faults.Equipped with an overreach filter, the 469removes the DC component from theasymmetrical current present at themoment a fault occurs or motor starts.

A trip backup feature is also available aspart of this function, used to issue a secondtrip if the fault is not cleared within a giventime delay.

Ground FaultThis function is designed to protect motorsagainst phase to ground faults.

There are two dedicated ground currentinputs in the relay, which support thefollowing types of ground currentdetection.

Core balance (Zero sequence) currenttransformer.Core balance (Zero sequence) 50:0.025 A(sensitive) current transformer.Residual connection of phase currenttransformers.

The function is equipped with overreachfilter, which removes the DC componentfrom the asymmetrical current present atthe moment a fault occurs or motor starts.Two pickup levels ( trip and alarm) withindividual time delays are available for

ground fault detection.Trip Backup feature is also available aspart of this function. The operationalprincipal of Ground Fault Trip Backup is thesame as of Short Circuit Trip Backup.

Voltage and Frequency ProtectionUse the voltage and frequency protectionfunctions to detect abnormal system volt-age and frequency conditions, potentiallyhazardous to the motor.

The following voltage elements are available:Undervoltage

OvervoltageOver and UnderfrequencyPhase Reversal

To avoid nuisance operations, the 469 canbe set to block the undervoltage elementwhen the bus that supplies power to themotor is de-energized, or under VT fusefailure conditions.

Power ElementsThe following power elements areavailable in 469 relay. The first fourelements have blocking provision duringmotor starting.

Power Factor This element is used insynchronous motors applications to detectout of synchronism conditions.

Reactive Power This element is used in theapplications where reactive power limit isspecified.

Underpower Used to detect loss of load.

Reverse Active Power Useful to detectconditions where the motor can become agenerator.

Overtorque This element is used to protectthe driven load from mechanical breakage.

Current UnbalanceIn addition to Thermal model biasingcurrent unbalance is presented in 469relay as independent element with 2pickup levels and built-in single phasingdetection algorithm.

RTD ProtectionThe 469 has 12 programmable RTD inputsthat are normally used for monitoringtemperature of stator, bearings, ambienttemperature and some other parts of motor assembly that can be exposed to

overheating. Each RTD input has 3operational levels: alarm, high alarm andtrip.

Relay supports RTD trip voting andprovides open/short RTD failure alarm.

Additional and Special FeaturesTwo speed motor protection.Load averaging filter for cyclic loadapplicationsReduced voltage starting supervision.Variable frequency filter allowingaccurate sensing and calculation of the

analog values in VFD applications.Analog input differential calculation fordual drives applications.Speed counter trip and alarm.Universal digital counter trip and alarm.Pulsing KWh and Kvarh output.Trip coil supervision.Drawout indicator, Setpoints Access andTest permit inputs.Undervoltage Autorestart (additionalelement per special order)Experimental broken rotor bar detectionsystem (additional element per special

order)

Inputs and Outputs

Current and Voltage InputsThe 469 has two sets of three phase CTinputs, one for phase current, and onededicated for differential protection.

The ratings of the phase current inputs (1Aand 5A) must be specified when orderingthe relay, while the ratings for differentialinputs are field programmable, supporting

both 1A and 5A secondary currents.There are also 2 one-phase ground CTinputs: standard input with settablesecondary rating; 5A or 1A, and specialsensitive ground current detection input forhigh resistance grounded systems.

Three phase VT inputs support delta andwye configuration and provide voltagesignals for all voltage and power basedprotection elements and metering.

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RTD InputsThe 469 has 12 field programmable RTDinputs supporting 4 different types of RTDsensors. These inputs are used for RTDTemperature protection and also forthermal model biasing.

Digital InputsThe 469 has 5 predefined inputs:

Starter StatusEmergency RestartRemote ResetSetpoint AccessTest Switch

It also has four assignable digital inputs,which can be configured to aid thefollowing functions:

Remote Trip and Alarm

Speed Switch Trip and TachometerVibration Switch Trip and AlarmPressure Switch Trip and AlarmLoad Shed TripUnive rsa l Dig i t a l Coun te r andConfigurable General SwitchExternal oscillography trigger andExternal Relay Fault Simulationinitiation.

User Interface

Analog Inputs and OutputsUse the four configurable analog inputsavailable in the 469 to measure motoroperation related quantities fed to therelay from standard transducers. Eachinput can be individually set to measure

4-20 mA, 0-20 mA or 0-1 mA transducersignals. The 469 can also be set to issuetrip or alarm commands base on signalthresholds.

Use the four configurable analog outputsavailable in the 469 to provide standardtransducer signals to local monitoringequipment. The relay must be orderedwith the hardware to provide the desiredoutput signal, either 4-20 mA, or 0-1 mA.The analog outputs can be configured toprovide suitable outputs based on anymeasured analog value, or any calculatedquantity.

Output RelaysThere are six Form-C output relaysavailable in the 469. Four relays arealways non-failsafe and can be selectivelyassigned to perform trip, or alarmfunctions. A non-failsafe block start relay isalso provided, controlled by protection

functions requiring blocking functionality.Loss of control power or 469 internalfailures are indicated via the failsafeservice relay.

The trip and alarm relays can also beconfigured with latching functionality

when their status shall be maintained untilthe 469 is manually reset, locally via thefront panel, or remotely via communica-tions.

Monitoring and MeteringThe 469 is equipped with monitoring toolsto capture data. The following informationis presented in a suitable format foranalysis:

MonitoringThe 469 is equipped with monitoring tools

to capture data. The following informationis presented in a suitable format.

Status of inputs, outputs and alarmsLast trip dataMotor learned parameters: last andmaximum acceleration times, startingcurrents and starting TCU, averagecurrents, RTD maximums, analog inputsmaximums and minimums.

LARGE DISPLAY

Forty character display for viewingsetpoints and actual value mess-ages. Diagnostic messages aredisplayed when there is a trip oralarm condition. Default messagesare displayed after a period of inactivity.

VALUE KEYS

Value Up, and Value Down keysto change setpoint values

PROGRAM PORT INTERFACE

RS232 for connection to acomputer, 9600 baud

469 STATUS INDICATORS

NUMERIC KEYPAD

469 status

CONTROL ANDPROGRAMMING KEYSMenu, Escape, Reset, Enter,Menu Up, and Menu Downkeys for complete acesswithout a computer.

DRAWOUT HANDLEWith provision for a wirelead seal to prevent unauth-orized removal

Motor status Output relays

Numeric keys allow for simpleentry of setpoint values. Controlkeys allow simple navigationthrough setpoint and actual valuemessage structures. Help keyprovides context sensitive help

messages

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Trip and general counters, motor runninghours and start timers.Event recorderoscillography. 10 waveforms (Ia, Ib, Ic,Ig, Iadiff, Ibdiff, Icdiff, Va, Vb, Vc)

MeteringThe following actual values are accuratelymeasured and displayed:

Phase, differential and ground currents,average current, motor load, currentunbalance.Phase-to-ground and Phase-to-phasevoltages, average phase voltage, systemfrequency.Real, reactive, apparent power, powerfactor, watthours, varhours, torqueCurrent and power demand.Analog inputs and RTDs temperature.

Thermal capacity used, lockout times,motor speed

Event RecordingThe event recorder stores motor andsystem information with a date and timestamp each time an event occurs up to 256events.

OscillographyThe 469 records up to 64 cycles with 12samples per cycle of waveform data for 10waveforms (Ia, Ib, Ic, Ig, Diffa, Diffb, Diffc,Va, Vb, Vc) each time a trip occurs. Therecord is date and time stamped.

SimulationThe simulation feature tests the functional-ity and relay response to programmedconditions without the need for externalinputs. When placed in simulation modethe 469 suspends reading of the actualinputs and substitutes them with thesimulated values. Pre-trip and faultconditions can be simulated.

User InterfacesKeypad and DisplayThe 469 has a keypad and 40 characterdisplay for local control and programmingwithout a computer. Up to 20 user-selected default messages can bedisplayed when inactive. In the event of atrip, alarm, or start block, the display willautomatically default to the pertinentmessage and the Message LED indicatorwill flash.

LED IndicatorsThe 469 has 22 LED indicators on the frontpanel. These give a quick indication of 469status, motor status, and output relaystatus.

CommunicationsThe 469 is equipped with three standardserial communications ports, one RS232located in the front panel, and two RS485in the rear of the relay. One optional10BaseT Ethernet port is also availablelocated, when ordered, at the rear of therelay. The front panel port allows easylocal computer access. The rear portsprovide remote communications orconnection to a DCS, SCADA, or PLC. TheRS232 baud rate is fixed at 9600, while theRS485 ports are variable from 300 to19,200 bps. The optional Ethernet port canbe used to connect the 469 to 10 MbpsEthernet networks. The three serial portssupport ModBus RTU protocol, while theEthernet port supports ModBus RTU viaTCP/IP protocol. The communicationsystem of the 469 is designed to allowsimultaneous communication via all ports.Using Ethernet as the physical media tointegrate the 469 to Local or Wide AreaNetworks, replaces a multidrop-wirednetwork (e.g., serial Modbus), andeliminates expensive leased or dial-upconnections, reducing monthly operatingcosts.

SoftwareThe relay comes with the Windows -based EnerVista 469 setup software whichcan be used to manipulate and display 469data. A simple point and click interfaceallows setpoint files for each motor to bestored, printed for verification, and down-loaded to the 469 for error-free setpointentry. The entire 469 manual is included asa help file for quick local access.

EnerVista Software

The 469 comes with EnerVista, anindustry-leading suite of software toolsthat simplifies every aspect of workingwith GE Multil in devices. EnerVistasoftware is extremely easy to use andprovides advanced features that help youmaximize your investment in GE Multilinproducts.

EnerVista LaunchpadEnerVista Launchpad is a complete set of powerful device setup and configurationtools that is included at no extra chargewith the 469.

Set up the 469 - and any other GEMultilin device - in minutes. Retrieve andview oscillography and event data atthe click of a button.Build an instant archive on any PC of thelatest GE Multilin manuals, serviceadvisories, application notes, specifica-tions or firmware for your 469.Automatic document and softwareversion updates via the Internet anddetailed e-mail notification of newreleases.

EnerVista ViewpointEnerVista is a premium workflow-basedtoolset that provides engineers andtechnicians with everything they need tomonitor, test and troubleshoot GE MultilinIEDs and manage settings files with ease.The 469 includes an evaluation version of EnerVista Viewpoint.

Settings file change control, automaticerror checking and a visual FlexLogiceditor make creating, editing andstoring settings a snapPlug-and-Play monitoring automaticallycreates customized monitoring screensfor your 469 - no programming requiredPowerful testing tools help shorten yourcommissioning cycleQuickly retrieve oscillography and eventdata when a fault occurs

See the EnerVista Suite section for moreinformation.

469 GuideformSpecificationsFor an electronic version of the 469 guide-form speci f ica t ions, please visi t :www.GEMultilin.com/specs, fax yourrequest to 905-201-2098 or email [email protected].

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Typical Wiring

C

A

B

A

B

C

CIRCUITBREAKER

PHASE A CT

PHASE B CT

GROUND CTDIFF.

PHASE A CT

PHASE C CT

DIFF.PHASE B CT

DIFF.PHASE C CT

MOTOR

806751AS.dwg

AUTOMATIC CTSHORTING TERMINALSH5G5H4G4H3G3H10G10H9G9H8G8H7G7H6G6G1H2H1G2H11H12G11G12

A27A26A25A24A23A22A21A20A19A18A17A16B4B3B2D27D26D25

COMPUTERRS485

AUXILIARY RS485 ANALOG OUTPUTS

+ - COM + - COMCOM

ANALOG I/O

1+ 2+ 3+ 4+ 1+ 2+ 3+ 4+SHIELD +24Vdc

ANALOG INPUTS

COM

E12F12

E11F11

E2F1E1F2E3F3E5F4E4F5E6F6E8F7E7F8E9F9

D16D17D18D19D20D21D22D23D24C1C2C3C4

B1A1A2A3A4A5A6A7A8A9A10A11A12A13A14A15D1D2D3D4D5D6D7D8D9D10D11D12D13D14D15

1 A/5A C OM 1 A/5A C OM 1 A/5A C OM 1 A/5A C OM

PHASE A P HA SE B PH AS E C

1 A/5A C OM 1 A/5A C OM 1 A/5A C OM

PHASE A P HAS E B PH ASE CGROUND

50:.025COM

GROUND

DIFFERENTIAL INPUTSCURRENT INPUTSPHASE

VOLTAGE INPUTS

VcomVa Vb VcCONTROL

POWER F I L T E R

G R O U N D

S A F E T Y

G R O U N D

RTD SHIELDHOT

HOT

HOT

HOTHOT

HOTHOT

HOT

HOT

HOT

HOT

HOT

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD #1

RTD #2

RTD #3

RTD #4

RTD #5

RTD #6

RTD #7

RTD #8

RTD #9

RTD #10

RTD #11

RTD #12

STARTER STATUSEMERGENCY RESTARTREMOTE RESETASSIGNABLE INPUT 1ASSIGNABLE INPUT 2ASSIGNABLE INPUT 3ASSIGNABLE INPUT 4COMMONSWITCH +24Vdc

ACCESS

TEST

DI GI T AL I NP

UT

S

FRONT PANEL LOCALPROGRAMMING PORT R

S 2 3 2

R1 TRIP

R2 AUXILIARY

R3 AUXILIARY

R4 ALARM

R5 BLOCKSTART

R6 SERVICE

DRAWOUTINDICATOR

CIRCUIT BREAKER CONTACTS(52a, 52b) SHOWN FORBREAKER OPEN.

TRIP COILSUPERVISION

CONTROLPOWER

STOP52a

TRIPCOIL

ALARM ANNUNCIATOR

START 52bCLOSE

COIL

SELF TEST ANNUNCIATOR

OUTPUT CONTACTSSHOWN WITH NOCONTROL POWER

RS232 INTERFACE

RE LAY COMP UT ER

9 W I R E R S 2 3 2

9 PINCONNECTOR

25 PINCONNECTOR

TXDTXDRXDRXD

SGND SGND

1234567

20

2289

12

233

4

4

5

5

6 67

7

8

8

9

PERSONALCOMPUTER RS232

469PCPROGRAM

COMMON

THERMAL CAPACITY

1 AVG

STATOR RTDs

KW

RS485PORT

COMMON-

#1+

#2+

#3+

#4+

4-20mAANALOG

INPUT

PLCor

COMPUTER

KEYSWITCHFOR SETPOINTACCESS

+24

INDUCTIVE/HALL EFFECTSENSOR FORTACHOMETER

52a

AMBIENT

PUMPCASE

PUMPBEARING

2

PUMPBEARING

1

MOTORBEARING

2

MOTORBEARING

1

MOTORWINDING

6

MOTORWINDING

1

MOTORWINDING

2

MOTORWINDING

3

MOTORWINDING

4

MOTORWINDING

5

GROUNDBUS

469POWERSUPPLY

MOTORBEARING1

MOTORBEARING2

LOADBEARING1

LOADBEARING2

SELF POWERED VIBRATION TRANSDUCERS

DO NOT INJECTVOLTAGES TO

DIGITAL INPUTS(DRY CONTACT

CONNECTIONS ONLY)

CAUTION

CHECK VOLTAGE RATINGOF THE UNIT BEFORE

APPLYING POWER.(SEE Pgs. 2-8)

CAUTION

DCS

GROUNDCOMMUNICATION PORTSONLY AT MASTER DEV ICE

120

1nF

1 20

1nF

120

1nF

120 1nF

EthernetOption (T)

HUB

Multilin 469

Motor Protection System g

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469 Technical SpecificationsPROTECTIONPHASE SHORT CIRCUITPickup Level: 4.0 to 20.0 x CT primary in steps of

0.1 of any one phaseTime Delay: 0 to 1000 ms in steps of 10Pickup Accuracy: as per Phase Current InputsTiming Accuracy: +50 msElements: TripREDUCED VOLTAGE STARTTransition Level: 25 to 300% FLA in steps of 1Transition Time: 1 to 250 s in steps of 1Transition Control: Current, Timer, Current and TimerOVERLOAD/STALL PROTECTION/THERMAL MODELOverload Curves: 15 Standard Overload Curves,

Custom Curve, Voltage DependentCustom Curve for high inertiastarting (all curves time out againstaverage phase current)

Curve Biasing Phase UnbalanceHot/Cold Curve RatioStator RTDRunning Cool RateStopped Cool RateLine Voltage

Overload Pickup: 1.01 to 1.25 (for service factor)Pickup Accuracy: as per Phase Current InputsTiming Accuracy: 100 ms or 2% of total timeElements: Trip and AlarmMECHANICAL JAMPickup Level: 1.01 to 3.00 x FLA in steps of 0.01

of any one phase, blocked on startTime Delay: 1 to 30 s in steps of 1Pickup Accuracy: as per Phase Current InputsTiming Accuracy: 0.5 s or 0.5% of total timeElements: Trip

UNDERCURRENTPickup Level: 0.01 - 0.99 x CT Trip0.01 - 0.95 x CT Alarmin steps of 0.01

Time Delay: 1 to 60 s in steps of 1Block From Start: 0 to 15000 s in steps of 1Pickup Accuracy: as per Phase Current InputsTiming Accuracy: 0.5 s or 0.5% of total timeElements: Trip and AlarmCURRENT UNBALANCEUnbalance: I2 / I1 if Iavg > FLA

I2 / I1 x Iavg / FLA if Iavg < FLARange: 0 to 100% UB in steps of 1Pickup Level: 4 to 40% UB in steps of 1Time Delay: 1 to 60 s in steps of 1Pickup Accuracy: 2%Timing Accuracy: 0.5 s or 0.5% of total timeElements: Trip and AlarmPHASE DIFFERENTIALPickup Level: 0.05 to 1.0 x CT primary in steps

of 0.01 of any one phaseTime Delay: 0 to 1000 ms in steps of 10Pickup Accuracy: as per Phase Differential Current

InputsTiming Accuracy: +50 ms

Elements: TripGROUND INSTANTANEOUSPickup Level: 0.1 to 1.0 x CT primary in steps of

0.01Time Delay: 0 to 1000 ms in steps of 10Pickup Accuracy: as per Ground Current InputTiming Accuracy: +50 msElements: Trip and AlarmACCELERATION TIMERPickup: Transition of no phase current to

> overload pickupDropout: When current falls below overload

pickupTime Delay: 1.0 to 250.0 s in steps of 0.1Timing Accuracy: 100 ms or 0.5% of total timeElements: TripJOGGING BLOCKStarts/Hour: 1 to 5 in steps of 1Time between Starts: 1 to 500 min.Timing Accuracy: 0.5 s or 0.5% of total timeElements: BlockRESTART BLOCKTime Delay: 1 to 50000 s in steps of 1Timing Accuracy: 0.5 s or 0.5% of total time

Elements: BlockRTDPickup: 1 to 250C in steps of 1Pickup Hysteresis: 2CTime Delay: 3 sElements: Trip and AlarmUNDERVOLTAGEPickup Level:Motor Starting: 0.60 to 0.99 x Rated in steps of 0.01Motor Running: 0.60 to 0.99 x Rated in steps of 0.01

any one phaseTime Delay: 0.1 to 60.0 s in steps of 0.1Pickup Accuracy: as per Voltage InputsTiming Accuracy: 2 x CT: 1% of 20 x CT

CT Withstand: 1 second at 80 x rated current2 seconds at 40 x rated currentcontinuous at 3 x rated current

DIFFERENTIAL CURRENT INPUTSCT Primary: 1 to 5000 ACT Secondary: 1 A or 5 A (Set point)Burden: Less than 0.2 VA at rated loadConversion Range: 0.02 to 1 x CT primary AmpsNominal Frequence: 20 - 70 HzFrequency Range: 20 - 120 HzAccuracy: 0.5% of 1 x CT for 5 A

0.5% of 5 x CT for 1 ACT Withstand: 1 second at 80 x rated current

2 seconds at 40 x rated currentcontinuous at 3 x rated currentcontinuous at 3 x rated current

GROUND CURRENT INPUTSCT Primary: 1 to 5000 ACT Secondary: 1 A or 5 A (Set point)Burden: < 0.2 VA at rated load for 1 A or 5 A

< 0.25 VA for 50:025 at 25 AConversion Range: 0.02 to 1 x CT primary AmpsNominal Frequence: 20 - 70 HzFrequency Range: 20 - 120 HzAccuracy: 0.5% of 1 x CT for 5 A

0.5% of 5 x CT for 1 A 0.125 A for 50:0.025

CT Withstand: 1 second at 80 x rated current2 seconds at 40 x rated currentcontinuous at 3 x rated current

VOLTAGE INPUTSVT Ratio: 1.00 to 150.00:1 in steps of 0.01VT Secondary: 273 V AC (full scale)Conversion Range: 0.05 to 1.00 x full scaleNominal Frequence: 20 - 70 HzFrequency Range: 20 - 120 HzAccuracy: 0.5% of full scaleMax. Continuous: 280 V ACBurden: > 500 kDIGITAL INPUTSInputs: 9 opto-isolated inputsExternal Switch: dry contact < 400 , or open

collector NPN transistor fromsensor; 6 mA sinking frominternal 4 K pull-up at 24 V DCwith Vce < 4 V DC

469 Sensor Supply: +24 V DC at 20 mA maximumRTD INPUTS3 wire RTD Types: 100 Platinum (DIN.43760),

100 Nickel, 120 Nickel,10 CopperRTD Sensing 5mACurrent:Isolation: 36 Vpk

(isolated with analog inputsand outputs)

Range: 50 to +250CAccuracy: 2CLead Resistance: 25 Max per lead for Pt and

Ni type3 Max per lead for Cu type

No Sensor: >1000Short/Low Alarm:: < 50CTRIP COIL SUPERVISIONApplicable Voltage: 20 to 300 V DC / V ACTrickle Current: 2 to 5 mAANALOG CURRENT INPUTSCurrent Inputs: 0 to 1 mA, 0 to 20mA or 4 to

20 mA (setpoint)Input Impedance: 226 10%Conversion Range: 0 to 21 mAAccuracy: 1% of full scaleType: passiveAnalog In Supply: +24 V DC at 100 mA maximumResponse Time: 100 ms

PROTECTIONOVERVOLTAGEPickup Level: 1.01 to 1.10 x rated in steps of 0.01

any one phaseTime Delay: 0.1 to 60.0 s in steps of 0.1Pickup Accuracy: as per Voltage InputsTiming Accuracy: 100 ms or 0.5% of total timeElements: Trip and AlarmVOLTAGE PHASE REVERSALConfiguration: ABC or ACB phase rotationTiming Accuracy: 500 to 700 msElements: TripFREQUENCYRequired Voltage: > 30% of full scale in Phase AOverfrequency Pkp:

25.01 to 70.00 in steps of 0.01Underfrequency Pkp:

20.00 to 60.00 in steps of 0.01Accuracy: 0.02 HzTime Delay: 0.1 to 60.0 s in steps of 0.1Timing Accuracy:

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469 Technical Specifications ContinuedOUTPUTSANALOG OUTPUTS

Type: ActiveRange: 4 to 20 mA, 0 to 1 mA

(must be specified with order)Accuracy: 1% of full scaleMaximum 4 to 20 mA input: 1200 ,

Load: 0 to 1 mA input: 10 kIsolation: 36 Vpk

(Isolation with RTDs and AnalogInputs)

4 Assignable phase A current, phase B current,Outputs: phase C current, 3 phase averagecurrent, ground current, phase AN(AB) voltage, phase BN (BC) voltage,phase CN (CA) voltage, 3 phaseaverage voltage, hottest stator RTD,hottest bearing RTD,hottest otherRTD, RTD# 1 to 12, Power factor, 3-phase Realpower (kW), 3-phase Apparent power(kVA, 3-phase Reactive power (kvar),Thermal Capacity Used, RelayLockout Time, Current Demand, kvarDemand, kW Demand, kVA Demand,Motor Load, TorqueMotor Load, Torque

OUTPUT RELAYSConfiguration: 6 Electromechanical Form CContact Material: silver alloyOperate Time: 10 msMax ratings for 100000 operations

MAKE/ MAKE/VOLTAGE CARRY CARRY BREAK MAX

CONTINUOUS0.2 SEC LOADDC 30 VDC 10 A 30A 10 A 300 WResistive 125 VDC 10 A 30A 0.5 A 62.5 W250 VDC 10 A 30A 0.3 A 75 WDC 30 VDC 10 A 30A 5 A 150 WInductive 125 VDC 10 A 30A 0.25 A 31.3 WL/R = 40 ms250 VDC 10 A 30A 0.15 A 37.5 WAC 120 VAC 10 A 30A 10 A 2770 VAResistive 250 VAC 10 A 30A 10 A 2770 VAAC 120 VAC 10 A 30A 4 A 480 VAInductive 250 VAC 10 A 30A 3 A 750 VAP.F. = 0.4

COMMUNICATIONSRS232 Port: 1, Front Panel, non-isolatedRS485 Ports: 2, Isolated together at 36 VpkBaud Rates: RS485: 300 - 19,200 Baudprogrammable parity

RS232: 9600Parity: None, Odd, EvenProtocol: Modbus RTU / half duplexEthernet Port: 10BaseT, RJ45 Connector, ModBus

RTU over TCP/IP

MONITORINGPOWER FACTORRange: 0.01 lead or lag to 1.00Pickup Level: 0.99 to 0.05 in steps of 0.01, Lead

& LagTime Delay: 0 .2 t o 30 .0 s i n s teps of 0.1Block From Start: 0 to 5000 s in steps of 1Pickup Accuracy: 0.02Timing Accuracy: 100 ms or 0.5% of total timeElements: Trip and Alarm3-PHASE REAL POWERRange: 0 to 99999 kWUnderpower Pkp: 1 to 25000 kW in steps of 1Time Delay: 1 to 30 s in steps of 1Block From Start: 0 to 15000 s in steps of 1Pickup Accuracy:

at Iavg < 2 x CT: 1% of 3 x 2 x CT x VT x VTfullscale

at Iavg > 2 x CT 1.5% of 3 x 20 x CT x VT x VTfullscale

Timing Accuracy: 0.5 s or 0.5% of total timeElements: Trip and Alarm3-PHASE APPARENT POWERRange: 0 to 65535 kVA

at Iavg < 2 x CT: 1% of 3 x 2 x CT x VT x VTfullscaleat Iavg > 2 x CT1.5% of 3 x 20 xCT x VT x VTfull scaleCT x VT x VTfull scale

3-PHASE REACTIVE POWERRange: 0 to 99999 kWPickup Level: 1 to 25000 kW in steps of 1Time Delay: 0.2 to 30.0 s in steps of 1Block From Start: 0 to 5000 s in steps of 1Pickup Accuracy:

at Iavg < 2 x CT: 1% of ?3 x 2 x CT x VT x VTfull scale

at Iavg > 2 x CT: 1.5% of 3 x 20 x CT x VT x VTfullscaleTiming Accuracy: 100 ms or 0.5% of total timeElements: Trip and AlarmOVERTORQUEPickup Level: 1.0 to 999999.9 Nm/ftlb in steps of

0.1; torque unit is selectable undertorque setup

Time Delay: 0.2 to 30.0 s in steps of 0.1Pickup Accuracy: 2.0%Time Accuracy: 100 ms or 0.5% of total timeElements: Alarm (INDUCTION MOTORS ONLY)METERED REAL ENERGY CONSUMPTIONDescription: Continuous total real power

consumptionRange: 0 to 999999.999 MWhours.Timing Accuracy: 0.5%Update Rate: 5 secondsMETERED REACTIVE ENERGY CONSUMPTIONDescription: Continuous total reactive power

consumptionRange: 0 to 999999.999 MvarhoursTiming Accuracy: 0.5%Update Rate: 5 seconds

METERED REACTIVE POWER GENERATIONDescription: Continuous total reactive powergeneration

Range: 0 to 2000000.000 MvarhoursTiming Accuracy: 0.5%Update Rate: 5 seconds

469 * * * * *469 | Basic Unit

P1 1 A phase CT secondariesP5 5 A phase CT secondaries

LO DC: 24 - 60 V; AC: 20 - 48 V @ 48 -62 Hz control powerHI DC: 90 - 300 V; AC: 70 - 265 V @ 48 -62 Hz control power

A1 0 - 1 mA analog outputsA20 4 - 20 mA analog outputs

E Enhanced front panelT Enhanced front panel with Ethernet 10BaseT option

H Harsh (Chemical) Environment Conformal CoatingAccessoriesEnerVista: Included with each relayDEMO: Metal carry case in which 469 unit may be mounted19-1 PANEL: Single cutout 19" panel19-2 PANEL: Dual cutout 19" panelSCI MODULE: RS232 to RS485 converter box designed for

harsh industrial environmentsPhase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 1000HGF3, HGF5, HGF8: For sensitive ground detection on high resistance grounded systems

1 3/8" Collar: For shallow switchgear, reduces the depth of the relay by 1 3/8".3" Collar: For shallow switchgear, reduces the depth of the relay by 3".

Dual mounting availablewith the 19-2 Panel.IP54 Collar

NOTE:For dimensions see SR Family brochure.

Ordering

POWER SUPPLYCONTROL POWEROptions: LO / HI (must be specified with order)LO Range: DC: 20 to 60 V DC

AC: 20 to 48 V AC at 48 to 62 HzHi Range: DC: 90 to 300 V DC

AC: 70 to 265 V AC at 48 to 62 HzPower: 45 VA (max), 25 VA typicalProper operation time without supply voltage: 30 ms

PRODUCT TESTSThermal Cycling: Operational test at ambient,

reducing to 40C and thenincreasing to 60C

Dielectric Strength: 2.0 kV for 1 minute from relays,CTs, VTs, power supply to SafetyGround

TYPE TESTS

Dielectric Strength: Per IEC 255-5 and ANSI/IEEEC37.90 2.0 kV for 1 minute fromrelays, CTs, VTs, power supply toSafety Ground

Insulation Resistance:IEC255-5 500 V DC, from relays,CTs, VTs,power supply to SafetyGround

Transients: ANSI C37.90.1 Oscillatory (2.5kV/1MHz); ANSI C37.90.1 Fast Rise(5kV/10ns); Ontario Hydro A-28M-82; IEC255-4 Impulse/HighFrequency Disturbance, Class IIILevel

Impulse Test: IEC 255-5 0.5 Joule 5 kVRFI: 50 MHz/15 W TransmitterEMI: C37.90.2 Electromagnetic

Interference at 150 MHz and 450MHz, 10 V/m

Static: IEC 801-2 Static DischargeHumidity: 95% non-condensingTemperature: 40C to +60C ambientEnvironment: IEC 68-2 38Temperature

/Humidity CycleVibration: Sinusoidal Vibration 8.0 g for 72 hrs.

CERTIFICATIONISO: Manufactured under an ISO9001 registered

system.CSA: CSA approvedCE: Conforms to EN 55011/CISPR 11, EN

50082-2IEC: Conforms to IEC 947-1,1010-1

ENVIRONMENTALTemperature Range:Operating: -40 C to +60 CAmbient Storage: -40 C to +80 CAmbient Shipping: -40 C to +80 CHumidity: Up to 90% noncondensingPollution degree: 2IP Rating: 40-X

Documents

EPODAMA006 (1)