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01.4IB.46300

Recommended Renewal Parts and Replacement Procedures

2) Auxiliary Contacts Inspection and

Replacement

CAUTION

Deenergize the equipment before performing

any maintenance work. Failure to do so may

result in injury or death to the operating

personnel.

a. Inspect the auxiliary contacts for wear,

scorching or heat damage. Replace any

damaged contacts. The contact have

a mean time between failure (MTBF)

rating of 20 million operations if used

within the operating specifications.

b. To remove the contact, turn both the

D-head fasteners until the flat sections

are aligned with the edge of the

contact.

c. Remove the contact from the housing.

d. Disconnect the wires from the auxiliary

contact.

e. Reverse steps b through d to install the

new auxiliary contact.

f. Ensure the contact is correctly

positioned into the contact carrier.

Table of Contents5
Ch 1 General Information11
- S Cope12
- P Urpose12
- I Nstruction B Ulletins a Vailable E Lectronically12
- Associated B Ulletins12
Ch 2 Safety13
- S Afe Ork Ondition13
- S Afety G Uidelines14
- G Eneral14
- S Pecific15
- X-R Ays15
- S Afety Abels16
Ch 3 Equipment Description17
- G Eneral17
- F Lex T Rol ™ C Lass E2 M Edium V Oltage C Ontroller17
- Figure 1 Flextrol™ 400A & 800A18
- Figure 2 Two-High Vertical Section Rear View (400A)19
- Figure 3 High and Low Voltage Compartments20
- Atings21
  - Basic I21
- Basic Mpulse Evel21
  - D Ielectric T Est21
- M Edium V Oltage C Ontactors21
Table a Horsepower, Current, and Voltage Ratings21
Table B Voltage and Interrupting Ratings of Class E2 Medium Voltage Controllers21
- M Anual I Solation Switch22
- Figure 4 Eaton Type SL Medium Voltage Vacuum Contactor 400A22
- Figure 5 Eaton Type SL Medium Voltage Vacuum Contactor 800A23
- M Echanical Nterlocking24
- Figure 6 Isolating Switch Operating Handle24
- Figure 7 Typical Dimensions for Flextrol25
- A Uxiliary Ompartments26
- P Ower F Uses26
- S Tarting Utotransformers or Eactors27
- D Imensions27
Ch 4 Installation28
- G Eneral28
- R Eceiving28
- S Torage28
- Andling29
- Figure 8 Recommended Method for Lifting an Indoor Lineup29
- Figure 9 Typical Flextrol™ Floor Plans30
- P Ositioning of the E Nclosure31
- R Emoving the M Edium V Oltage V Acuum C Ontactor31
  - Removing the Vacuum Contactor from the High Voltage Compartment31
- P Ower Onnections33
Table C General Guideline for Outgoing Feeder Cables33
- G Rounding34
- Figure 10 Ground Bus Splicing Configuration35
- C Onnections36
- Main B Us Assembly I Nsulation36
- I Ncoming P Ower C Onnections36
  - Wrapping Bus Joint36
Table D Bolt Torque Values for Flextrol36
Table E Bus Wrapping Components36
Table F Insulation of Bus Bar37
Table G Insulation of Single Bus Bar Connection Joint37
Figure 11 Insulation of Bus Bar37
Figure 12 Single Bus Bar Connection Joint37
Table H Insulation of Double Bus Bar Connection Joint38
Table I Insulation of Tee Connection Joint38
- Applying PVC Boots39
- Cleaning Bus Insulation39
- Figure 15 Dead End Bus Joint Insulation39
Figure 13 Double Bus Bar Connection Joint38
Figure 14 Tee Connection Joint38
Table J Insulation of Dead End Bus Bar Joint39
- Figure 16 Flextrol™ - 400A40
- Figure 17 Flextrol™ - 800A40
- M Otor C Onnections41
- P Ower C Able T Ermination41
- C Ontrol C Ables and C Onnections42
- Figure 18 Low Voltage Compartment42
- Figure 19 Wire Way42
- G Round F Ault C Urrent T42
- I Nsulating P Rimary C Ables42
- M Echanical O Peration C Heck43
- S Urge Rotection43
- S Afety I Nterlocks44
Ch 5 Operation46
- G Eneral46
- P Reparation of the Ontroller for Peration46
- Est P Ower C Ircuit48
- Figure 21 Mechanical Interlock Verification48
- I -P Ot and M Egger T Est49
  - Preparing for the Hi-Pot and Megger Test49
  - Performing the Hi-Pot and Megger Test49
- P Re -O Peration T Est50
- S Tart50
Table K Eaton Publication References52
Ch 6 Maintenance53
- Maintenance P Recautions53
- P Reventative Maintenance G Uidelines53
Ch 7 Recommended Renewal Parts and Replacement Procedures55
- O Rdering I Nstructions55
- R Ecommended R Enewal P Arts55
  - Renewal Parts Quantity55
- Eplacement P Rocedures55
  - Fuse Removal/Replacement Procedure56
  - Auxiliary Contacts Inspection and Replacement57
- R Eplacement P Arts58
Table L Medium Voltage Vacuum Contactor Eaton 400A SL58
Table M Medium Voltage Vacuum Contactor Eaton 800A SL59
Table N R-Rated Clip-On Fuses for 400A Contactor60
Table O R-Rated Bolt-On Fuses for 800A Contactor61
Table P E-Rated Clip-On Fuses for 400A Contactor62
Table Q E-Rated Bolt-On Fuses for 800A Contactor62
Table R Control Relays63
Table S Current Transformers63
Table T Ground Current Transformers63
Table U Control Power Transformers - SNC64
Table V Control Power Transformer Primary Fuses64

Brand	Powell
Model	FlexTrol Class E2
Category	Controller
Language	English

Powell FlexTrol Class E2 User Manual

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Powell FlexTrol Class E2 Specifications