Electric Motor- Maintenance Procedure

Index

Index1. Introduction2

2. Technical Information3

2.0 General3

2.1 Explosion Proof Motors Line (EEx-d) EEX-D8

2.2 Explosion Proof Motors with Increased Safety Terminal Box (EEx-de) EEX-DE9

2.3 Increased Safety Motors Line (EEx-e) EEX-E10

2.4 Non Sparking Motors Line (EEx-n) EEX-N12

2.5 Certification13

3. Maintenance Instructions and Procedures14

3.1 General Information14

3.1.1 Disassembly14

3.1.2 Assembly15

3.1.3 Electrical details16

3.5 Motor assembly

3.6 Marking

4. Recommendations18

5. Services allowed and not allowed in EEx-d, EEx-de, EEx-nA and EEx-eEEx-DEExEEX-NAEEx-E18

Appendix I: Engineering Documents-

Appendix II: Certification copies-

1. IntroductionWhen an electrical apparatus is installed in areas where dangerous concentrations and quantities of flammable gases, vapors or mists may be present in the atmosphere, protective measures are to be applied to reduce the likelihood of explosion due to ignition by arcs, sparks or hot surfaces produced either in normal operation or under specified fault conditions. This manual is part of other relevant materials, for instance, Manual of Electric Motors and Manual of Installation and Maintenance of Electric Motors, which must be used regarding each specific situation.

WEG has a very large experience on electric motors application and as a leader within the industry; we are manufacturer of one of the widest available ranges of electric motors for operation in hazardous atmospheres and hostile environments.All motors are of the highest quality, built to the latest national and international standards and certified by the relevant national authorities for use in almost every country.

WEGs hazardous equipments are applied widely throughout the world, in oil and gas companies, oil refineries, chemical works, coal mines, safely and with high level of efficiency providing power for long periods with minimum attention.

WEGs Inside of this manual you will get detailed data about WEGs Explosion Proof, Increased Safety and Non-Sparking motors, in addition you will know how to change these products, if you can change or not, and how you identify product after change. Beside some copies of certification and drawings will be added to this document as a supplementary data.

WEGs Other information not available in this document must be requested from the factory and it will be provided.

WEGs Technical Assistant must be responsible for all modifications conducted in this kind of products mainly because can generate injury and serious risks of life to people. We strongly recommend a certified repair shop to do any change in hazardous location products.

WEGs 2. Technical InformationAn atmosphere is considered explosive when the amount of gas, steam, dust or fiber is such that a spark originated from an electric circuit or an overheating from an equipment may cause an explosion.

In reference to surrounding equipment, preventive constructive measures are taken so as to avoid that the area around them is flamed. This is obtained through several means such as eliminating at least one of the substances necessary to generate an explosion and/or a fire (air/ fuel / ignition source) or by manufacturing enclosures capable to withstand inside eventual explosions.

/ / ACCORDING IEC STANDARDIECIEC Standard classifies risk areas in zones and groups. IECZones are classified based on frequency and the period of time that the explosive atmosphere is present.

The division in groups is made based on the aggressiveness of the ambient

. ZONE CLASSIFICATION

Gases and VaporsZone 00Area where explosive atmosphere is present continuously, or for long periods of timeFor this zone, it is not allowed to use any type of electric motor. Exceptions may occur only when analyzed by competent authority.

Zone 11Area where the probability of existing an explosive atmosphere is associated with the normal operation of the equipment. Ex d and Ex e type motors.DEX E

Zone 22Area where an explosive atmosphere will probably be present under normal operating condition and, if any, it will be for short period of time.Ex d, Ex e and Ex n type motors.EX DEn

ZONE CLASSIFICATION

DUSTSZone 2020Area where flammable dust is present continuously or frequently under normal operating conditions in enough amount to cause an explosive concentration of mixed dust with air and/or areas where may occur excessive amount of dust with no further control./

For this zone, it is not allowed to use any type of electric motor. Exceptions may occur only when analyzed by competent authority.

Zone 2121Area that is not classified as Zone 20. However, where flammable dusts may occur under normal operating conditions in enough amount to cause an explosive concentration of dust mixed with the air20

Ex d and Ex e type motors. DEX E

Zone 2222Areas that are not classified as Zone 21. However, where flammable dust may occur frequently and is present for shot period of time or where the amount of dust may occur just under abnormal operating conditions, then causing an explosive mixture. 21

Ex d, Ex e and Ex n type motors.EX DEn

GROUPS CLASSIFICATION

GROUPSMINESEquipment manufactured for under ground operation mines

IMethane may be present (gris)gris

OTHERSEquipment manufactured for other types of industry (surface industry), being subdivided based on the characteristics of the materials present

IIAAcetone, ammonia, benzene, butane, butane, alcohol butyric, ethane, ethanol, acetate of ethyl, gasoline, heptanes, hexanes, natural gas, methanol, naphtha of oil, propane, propane, toluene, enshrine, solvents in general

IIBAcetaldeide, cyclopropane, diethyl ether, ethane, monoxide of carbonacetaldeide

IICAcetylene, butadiene, oxide of ethane, hydrogen, oxide of propylene, gases containing over 30% of hydrogen30

ACCORDING CENELEC STANDARDCENELECCENECLEC has a different criterion to determine groups and categories, as follow:CENECLECGROUP I (MINES) I

GROUP II* (Surface Industries)II*

CATEGORIESZONE

1Equipment with high degree of protection.

Explosive atmosphere is present continuously or for long periods of time.1G (gas)1G1D (dust)1D

0 (gas)020 (dust)20

2Equipment with high degree of protection. Explosive atmosphere may occur occasionally.2G (gas)2G

2D (dust)2D

1 (gas)121 (dust)21

3Equipment with normal degree of protection. Explosive atmosphere will probably not occur.3G (gas)3G

3D (dust)3D2 (gas)222 (dust)22

M1Equipment designed to operate on environments where the explosive atmosphere is present frequently

M2Equipment that must be powered-off if there is any risk of explosion. Explosive atmosphere is present occasionally.

ATEXATEX (ATmospheres EXplosives) is the European Directive 94/9/EC. It applies to all equipment either electrical or mechanical used in hazardous atmospheres both dust and gas. The Directive was introduced in 1994 and allowed a ten-year period for introduction. ALL EQUIPMENT MANUFACTURED AFTER JULY, FIRST 2003 MUST COMPLY WITH ATEX.

94/9/EC19942003ATEXThe essential elements of ATEX involve: Notified Bodies, Standards, Conformity Assessment, Marking and Documentation. If provides a classification for motors in areas containing explosive atmospheres. More than product specification, the present Directive gives special attention to the production process including design, production itself and sale. The system certification is provided together with product certification.

This Directive establish some requirements as follow: Special health and safety requirements referred to the design and construction of the equipment and protection system to be used specially in explosive atmospheres. Production assured quality requirements. Verification of product conformance. Product conformance based on type test Production assured quality requirements. Required documentation to use the mark through internal production control, without requiring type test and/or Quality System requirement. / TEMPERATURE CLASSMinimum temperature that causes an explosion of a gas, vapor of explosive mixture is called ignition temperature. To avoid any risk of explosion, motor surface temperature must always remain below the ignition temperature of the explosive mixture. Internal and external surface temperature of electric equipment must be strictly followed to avoid ignition of an explosive mixture. So the equipment is classified in classes of temperature as per table below.

Classification According Temperature

TEMPERATURE CLASS (C) MAXIMUM MOTOR SURFACE TEMPERATURE (C)

IGNITIONTEMPERATURE OF AN EXPLOSIVE

MIXTURE (C)

IEC/CENELECIEC/ CENELEC

T1450>450

T2300>300

T3200>200

T4135>135

T5100>100

T685>85

Hazardous location motor marking (example):

XXXX II 2 G EEx e II C T4 PTB 01 ATEX 3205

2.1 Explosion Proof Motors Line (EEx-d) 2.1EEX-DAn explosion proof motor is an electric motor capable to withstand an internal explosion pressure without break avoiding that this explosion do not go to the environment. This is the oldest protection for hazardous locations.

An induction electric motor (of any protection) is not totally sealed, that is, air goes in and out of it. While in operation, it becomes heated up and the internal air gets to a higher pressure compared to external pressure (air is blown out); when motor is switched-off, the internal pressure decreases, allowing in this way entrance of air (which on this case is contaminated). EEx-d protection will not allow that an internal explosion propagates to the external environment. To ensure safety to the system, WEG provides a control of the openings and the finishing of joints, as they are responsible for the volume of gas exchanged between inside and outside of the motor. ;EEx-DWEG EEx-d Motors main featuresEEx-D Reinforced frames, Terminal box, endbells and bearing caps. endbells Bigger contact between components Reduced clearance between endbell and bearing caps to avoid flame propagationendbell All components has been tested in Hydrostatic Pressure Test Intermediate base is used between frame and terminal box Leads bushing system multi-wire up to frame 200 and single-wire from 225 up to 355225200355 Flameproof theoryFlame path or metal surfaces between explosion proof motors components need not be totally closed to avoid the passage of a flame. This part of the motor must be carefully handle avoiding scratches or risks that can eliminate the gap that is dimensioned according to the gas or vapor in the environment. Gases and vapors are divided into groups according to experimental data that has been established to determine the maximum experimental safety gap (MESG). In WEG electric motor it will exist two different types of flame path, between frame and endbell it will consist a long metal spigot joint fitting in a long recess which will be normally clamped tight by the fixing bolts. However it will exist a gap between bearing caps and shaft, with a minimum distance that must be maintained, because motor cannot exceed mandatory dimensions and must be capable to withstand an internal explosion without propagate to the external environment.

MESGWEGendbell

2.2 Explosion Proof Motors with Increased Safety Terminal Box (EEx-de) 2.2EEX-DEMotors with this feature will aggregate features of two lines; these motors will explosion proof structure, with flame path, gaps, etc. guarantying protection against propagation of flame to external environment and, additionally, will have a terminal box with Increased safety features that means controlled distances between live parts, internal distances in accordance with standards and terminal block avoiding connection turnings. ;All components applied are certified according ATEX. For frames 90 up to 200 it will be used terminal blocks type KS, with a special thread pin and special connectors. Motors from 225 up to 355 it will be used special connectors individually, per lead, passing through a basing plate. ATEX90200225355Foto ou desenhoOU desenho

2.3 Increased Safety Motors Line (EEx-e) 2.3EEX-EThis protection method is based on electric motor give an increased security against he possibility of excessive temperatures, of the occurrence of sparks and arcs during the service life of the equipment. It is important to say that this is not an explosion proof motor, which means that this equipment is not manufactured to withstand internal explosion. They are designed to ensure safety by means of several features such way that it will avoid sparks, arcs and excessive temperature on components under all conditions of operation. They are very similar to standard motors but have special connections system (terminal blocks) and specific electrical design. EEx-e Motors main featuresEEx-E Temperature rise 10 C bellow the maximum temperature allowed for the insulation class10C Commitment with time tE (maximum time to switch off through a protection device) tE Terminal box and cables connection must be tightly connected avoiding turning Mandatory external grounding on frame Frame must be connected with terminal box grounding Aluminum fan Drip cover on a vertical position application Reduced output x frame ratedx Oversized terminal box on 63 up to 100 frame (same size as 112 and 132) 63100112132 Very special care during manufacturing the winding with double impregnation layer Drain holes on endbell plugged with M6 brass boltendbellM6 Maximum internal and external temperature T3/T4T3/T4 Time tEtEThis is the time taken for winding when carrying the starting current IA to be heated up from temperature reached in rated service and at a maximum ambient temperature to the limiting temperature. IAThe protection device to be applied together with the motor must be designed to avoid any risk under all types of operation. This protection device must operate, without fault, not only on overload conditions, but also on locked rotor conditions. On this way, the value of time tE must be such that, when rotor is locked, motor must be switched-off by a protection device that depends on the current, before time tE gets to the end. tETE

O - Temperature at CA - Maximum ambient temperature (usually 40C)

B - Temperature at normal duty

C - Limit of temperature

1 - temperature at normal duty

2 - temperature during a failure or with locked rotor - CA- 40B- C-C - 1 - 2 - On the chart above, the interval OA represents the maximum ambient temperature, and OB is the temperature reached under normal operating duty. In case there is any failure with further rotor locking, the condition is represented on the interval 2 of the chart. The motor temperature increases quickly up to interval OC, which must be shorter than motor classification temperature T. So care must be taken to ensure motor is not switched-off within time tE.OAOB2TTE

2.4 Non-sparking Motors Line (EEx-n) 2.4EEX-NThis type of protection applies to electric equipment that do not cause ignition of an explosion atmosphere under normal operating conditions. EEx-n Motors main featuresEEx-NThe Ex n motor is built identically to a regular TEFC motor with the following features: Terminal box components as well as connection cables must be firmly fastened (avoiding any movement) T3 classification according maximum internal and external surfaceT3 Special terminal block Aluminum fanIt will be seen that many of the above features are similar to type e except that standard outputs are obtained from the motors, i.e. no derating is involved. Because of these motors are used in Zone 2 locations. E2

2.5 Certification2.5WEGs products are certified according ATEX-100 by PTB and CESI, that gives us a support to have a product manufactured with a very high level of quality and provide a good solution for our customers. WEGPTBATEX100

3. Maintenance Instructions and Procedures 3General informationThis manual is part of the new standards requirements for European market for hazardous location equipments. Informations that will be provided to the repair shops are: Certificate - Drawings- Technical information - Data about equipment and work conditions Assembly and disassembly instructions Restrictions to do the job (just in case) Designation - Maintenance and repair manual Bill of materialAspects relative to Maintenance for electric motors in hazardous location area, considering REPAIRS, REWINDING AND PRODUCT CHANGES to the EEx-d, EEx-de, EEx-e and EEx-n motors line.

EEx-DEExEEX-EEEx-N3.1.1. Disassembly3.1.1 The motor must be disassembled in a clean, dry and without dust place; ; Any dust, oil, grease, etc. that could be on the motor must be cleaned with cotton cloth and an adequate solvent; ;Disassembling Details Handle tools rightly, make the disassembling of the motor parts without hit any machined surface; ; The motor parts should be kept in a clean area, with your respective tag number; ; Machined surface fit parts (endbells, shaft, terminal box and frame) should be protected against corrosion with protective oil; endbells; If you will not change the bearings, they must be covered and protected against dust and powder. To wash them, we recommend kerosene or grease solvents like Aquamicro 5080, Arclean and so on; 5080 AquamicroArclean; The bearing lubrication should follow the table 1, added below: 1 The empty space into the bearing should be accomplished by grease, as follow bellow: Type of BearingInitial Amount of Grease (g) G

BALL

BEARINGS620912,50 ( 1,0

621117,00 ( 1,0

621223,00 ( 1,0

630924,00 ( 2,0

631140,00 ( 3,0

631250,00 ( 4,00

631476,00 ( 5,00

6316109,00 ( 6,00

6319176,00 ( 9,00

6322280,00 ( 28,00

CILINDRICAL

ROLLERNU217 39,00 ( 4,00

NU21961,00 ( 6,00

NU31456,00 ( 5,50

NU31680,00 (8,00

NU319128,00 (13,00

NU322200,00 ( 20,00

* Bearings above with steel cage. In case the bearing with brass cage, the initial amount of grease is different of this quantity showed above Please, call the Factory in this case. - The bearing caps should be accomplished by grease until ;; WEG recommends and uses the Polyrex EM grease Exxon. If this grease is not available, we recommend a lithium base with a mineral oil grease of high quality used; WEGPOLYREX EM - ; Check for any sight of hit or damage on the rotor, shaft, frame and machined surfaces; ;3.1.2. Assembly3.1.2 When assembly the motor, check the run out end shaft: look at the procedures and the limits value showed below:

SHAFT DIAMETER

(mm) MAXIMUM RUN OUT

((m) M

STANDARD CLASS

D ( 1030

10 < D ( 1835

18 < D ( 3040

30 < D ( 5050

50 < D ( 8060

80 < D ( 12070

120 < D ( 18080

180 < D ( 25090

250 < D ( 315100

315 < D ( 400110

400 < D ( 500125

500 < D ( 630140

The lip seals must be changed after the covers been disassembly; ; The seal should be carefully assembled: The lips cant be damaged; ; Apply oil or grease on the contact surface between seal and shaft; ; The seal should be assembled in the same plane of the cover, in 90 degrees with shaft; 90; The shaft surface cant have any mark or damage; ; The seal has a right position to be assembled; ;

Motor with Taconite Seal: wash the taconite, check for some problem (friction between the couple parts), regrease it, with the same type of grease applied on bearing, and assembly again; ; Warning: the taconite seal cant be assembled with friction between their parts; ; The covers should be assembled carefully. A soft hammer could be used. Never use a steel hammer straight to the cover; ; Fix the screws (covers, bearing caps and terminal box) alternately, cross way. These parts should be well screwed to avoid any internal explosion reach the external environment; ;ScrewM3M4M5M6M8M10M12M14M16M20

Torque (Nm)Nm0,5 0,71 22,5 3,55 710 2020 3034 6053 8083 140160 - 300

Check the screw torque tight, values shown on table below: Check, with a feeler gauge if the clearance between terminal box and his cover doesnt exceed 0.05 mm; 0.05; When finished assembling, turn the shaft to check any friction of any motor parts; ; Before painting the motor, remove the original paint and follow the painting how to recommended by WEG; WEG;3.1.3.Electrical Details3.1.3.ElectricalRewinding The stator may be warmed until 150C before removes the coils. You can use some special solvents to make this operation easily (WEG CHEMICAL has a solvent called LACKSOLVE 13). 150WEGLACKSOLVE13

Impregnation varnish can be softened with diluents. Also is possible to warm winding, if this process does not harm insulation among lamination. Special care musts be adopted, with manufacturer consult, when it is equipment type e with temperature class T4. This because an increase on core losses that can affect constructive features to the protection increased safety (for instance, time tE). ET4TE The stator should be carefully checked, checking for any problem in: Winding; Terminal box; ; Insulation material; ; Insulation resistance (minimum of 100M();100M;VALUESINSULATION

RESISTANCE

EQUAL OR UP TOLESS THAN

-2DANGEROUS

250BAD

50100PROBLEM

100500GOOD 1) 1

5001000VERY GOOD

UPPER THAN 10001000EXCELENT

1) Minimum value to accept the motor If rewinding is needed following procedures must be taken, same as standard motors, paying attention: WEG recommendations must be followed regarding winding data. Changes can not be done since a surface temperature can become higher than original design and overcome the class temperature limit (T3 or T4); - WEGT3T4; Insulation material must be applied according temperature class insulation of the motor; - Insulation material, terminal leads and protection devices must be certified by a notified body (CESI, PTB, ETC.) Frame warming can be done in a furnace with temperature not over 150C; - 150; Stator cleaning process must be avoided slot damage; - ; WEG explosion proof motors are provided with thermistors, which are installed on opposite side of ventilation, on winding. This device provides better safety on motor operation, besides not be mandatory by standards their application. WEG Change the thermistor when the rewinding. Install it on the opposite side of fan (DE coil), on the head of the coil, before varnish impregnation; ;

Electrical Tests After Rewinding: Measure the resistance on ambient temperature (doing the rightly corrections); ; Measure the insulation resistance in 500V: Insulation resistance minimum of 100M();500V100M; Hi-pot test against standard; - ; Current without load should be measured and compared with the manufacture value; ; Check the resistance of phases and evaluate the difference between phases : - Higher value than three phases resistance - 1 ( X 100) ( 3%

Lower value than three phases resistance

- 11003 Check the difference of current between phases: DI = ( DMD / MTF ) x 100=DMD/ MTF100Where: DI = Difference of currentDI=DMD = Maximum difference between ones phase current and medium current DMD=MTF = Medium of the three phase current MTF=Motors IV, VI e VIII poles, this difference should be less than 10% (DI ( 10%).1010Motors II poles, this difference should be less than 20% (DI ( 20%).2020Exemplo : Motor 10CV, IV plos, 220/380V10CV4P220/380V I1 = 15 A I2 = 12 A I3 = 11 A

MTF (medium current of three phases) = (I1 + I2 + I3) / 3 = (15 + 12+ 11) / 3

MTF=I1 + I2 + I3/ 3=15+12+11/ 3MTF = 12,6 A MTF=12,6DMD = I1 MTF = 15-12,6 = 2,4 A DMD= I1 - MTF=15-12,6=2,4DI = ( 2,4 / 12,6 ) X 100 = 19% ( the motor or the voltage supplier has a problem!=2,4/12,6100=19 If its possible, add to the tests above: Turn on the equipment on the nominal speed; ; Measure the vibration and noise level; ; Nominal current with rotor locked: apply low voltage on the winding the way that the current will be the nominal; - ;Tests after repair: Resistance measurement on ambient temperature, observe usual symmetry. - Insulation resistance in 500 VCC not bellows 20 M with a nominal voltage until 600 V. - 500 VCC20M600 V High pot test according standard. - Nominal current with nominal voltage must be compared with manufacturer data and must be symmetric on usual levels. - Electric motors must be submitted, if possible, to the following additional tests: - - Stator winding and its connections Insert temperature sensors in winding before impregnation . - Nominal speed operation and eliminating noise and vibration not permitted. Locked rotor test, applying reduced energy, such way that get full load current. - Check phase symmetry. -

Vibration Test: Conditions: Without load on the motor; ; With a half key on the shaft drive end; ; The motor must be tested on a special base; ; Measure the vibration level, RMS mode, as on the follow pointsRMS Compare the maximum value measured with the table showed below: This maximum value should be lesser than the level showed on the table. If one of the points measured were higher than the table, the motor has a problem and must be checked.

TIPE OF BASE TIPEFRAMESCHARACTERISTICS

MAXIMUM WEIGHT

OF BASEMOTOR WEIGHT ALLOWED

EspumaIEC 63 a 800,6 kg6 kg18 kg

EspumaIEC 90, 1121,8 kg18 kg70 kg

BorrachaIEC 132, 2005,6 kg56 kg314 kg

BorrachaIEC 225 a 35533 kg330 kg1300 kg

QUALITY OF BALANCINGSPEED

(rpm) MAXIMUM VALUE OF VIBRATION (mm/s) mm / s

Frame 56 to 13256132Frame 160 to 225160225Frame 250 to 355 250355

N (Standard) N600 ( n ( 18001,82,83,5

1800 < n ( 3600

R (reduzido)600 ( n ( 18000,711,121,8

1800 < n ( 36001,121,82,8

S (Special)S600 ( n ( 18000,450,711,12

1800 < n ( 36000,711,121,8

4. Recommendations 4( In case of change some motor component: use only original parts from WEG. WEG( In case of change some screw, keep the original resistance class 12,9. 12,9( Its forbid recovery any part of EEx-d and EEx-de motors like endbells, shafts, bearing caps, and so on. EEx-DEExendbells( Parts of EEx-d and EEx-de motors cant be sold to the end customer or another Repair Shop doesnt allowed to maintenance these kind of equipments. EEx-DEEx5. Services Allowed and Not Allowed in EEx-d, EEx-de, EEx-nA and EEx-e 5EEx-DEEx-DEEx-IAEEx-ETables bellow will show what a repair shop can do or can not in certified products, according all technical aspects listed previously. If any doubt exist this you have to contact WEG Service in the plant to clarify before start the job. WEGActivities to repair motors applied in hazardous locationsITEMREPAIR DESCRIPTION Motors Ex d / Ex de -/ CAN CAN NOT

01Complete rotor balancingX

02Replace complete rotorX

03Reallocate stack lengthX

04Rewind stator (original winding) X

05Rewind stator (different winding from original) X

06Replace shaftX

07Weld shaftX

08Fan balancingX

09Replace fanX

10Apply different stack from the original (lamination, length) X

11Replace bearingsX

12End bells bushingX

13Change painting planX

14Change colorX

15Replace end bellsX

16Change bearing sealing deviceX

17Additional shaft threads machiningX

18Terminal box Thread machiningX

19Change degree of protectionX

20Replace terminal boxX

21Replace terminal blocks/pins/X

22Change nameplateX

23Change type of protection (Ex d to Ex de) / X

24Turn T. Box 90o x 90o90x90X

25Change grease bearingX

26Change mountingX

27Replace insulation material classX

28Replace auxiliary components (PTC, PT100 and heaters) PTCPT100X

29Replace boltsX

30Vibrations sensor installX

31Install canopyX

32Change lubrication systemX

33Run out correctionX

34Add auxiliary componentsX

35Intermediate base changes/Add more threads/X

36Install a intermediate base kitX

37Replace leads bushingX

Activities to repair motors applied in hazardous locationsITEMREPAIR DESCRIPTION Motors Ex nA - CANCAN NOT






06Replace shaftX

07Weld shaftX

08Fan balancingX

09Replace fanX


11Replace bearingsX



14Change colorX

15Replace end bellsX







22Change nameplateX

23Change type of protection (Ex d to Ex de) X


25Change grease bearing X

26Change mountingX


28Replace auxiliary components (PTC, PT100 and heaters)PTCPT100X

29Replace boltsX


31Install canopyX




35Install an additional Terminal BoxX

Activities to repair motors applied in hazardous locationsITEMREPAIR DESCRIPTION Motors Ex e - CAN CAN NOT






06Replace shaftX

07Weld shaftX

08Fan balancingX

09Replace fan X


11Replace bearingsX



14Change colorX

15Replace end bells X







22Change nameplateX

23Change type of protection (Ex d to Ex de)X


25Change grease bearing X

26Change mountingX


28Replace auxiliary components (PTC, PT100 and heaters)PTCPT100X

29Replace boltsX


31Install canopyX




35Install an additional Terminal BoxX

5

2

1

O

B

C

TIME (C)

CE Marking CE

Notified Body

EC mark for electrical equipments in hazardous atmospheres

EC

Equipment Group

Equipment category

Gas

Type of protection against explosion

Equipment Group

Gas Subdivision

Temperature Class

Notified Body

Year

ATEX Directive ATEX

Certificate Number

200

LOCKED ROTOR

NORMAL OPERATION

ROTOR

STATOR

tE

CLASS F

130

120

40

0

S

4

0

2

H

5

3

1

3

1

4

2

A

T3

Look at the right way to install the lip into the cover and the oil (or grease) on this part

.

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