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FlexTrol™ Class E2 Medium Voltage Controllers with
Eaton Contactor
01.4IB.46300
Contents
l. Motor connectIonS ........................................................................................................................................ 31
M. poWer cABle terMInAtIon ................................................................................................................................ 31
n. InSulAtInG prIMAry cABleS ............................................................................................................................... 32
o. GrounD fAult current trAnSforMerS (throuGh type) ....................................................................................... 32
p. control cABleS AnD connectIonS ..................................................................................................................... 32
Q. SurGe protectIon ........................................................................................................................................... 33
r. MechAnIcAl operAtIon check .......................................................................................................................... 33
S. SAfety InterlockS ............................................................................................................................................ 34
1) Isolating Switch Operating Handle ................................................................................................................................... 34
2) Door Interlocks ....................................................................................................................................................................... 34
3 Contactor - Isolating Switch Mechanical Interlock .......................................................................................................35
4) Door Interference ..................................................................................................................................................................35
Ch 5 Operation ...............................................................................................................36
A. GenerAl ......................................................................................................................................................... 36
B. prepArAtIon of the controller for operAtIon ................................................................................................... 36
1) Cleaning ..................................................................................................................................................................................36
2) Lubricating .............................................................................................................................................................................. 36
3) Manual Operation .................................................................................................................................................................37
4) Adjustments ............................................................................................................................................................................ 37
5) Pre-Startup Checks ................................................................................................................................................................37
6) Contactor Interlock Pre-Start Up Check ........................................................................................................................... 37
c. teSt poWer cIrcuIt ......................................................................................................................................... 38
D. hI-pot AnD MeGGer teSt ................................................................................................................................. 39
1) Preparing for the Hi-Pot and Megger Test .......................................................................................................................39
2) Performing the Hi-Pot and Megger Test ...........................................................................................................................39
e. pre-operAtIon teSt ......................................................................................................................................... 40
f. StArt-up proceDure ....................................................................................................................................... 40
1) Preliminary Checks ................................................................................................................................................................40
2) Setting of Adjustable Protective Devices .........................................................................................................................41
3) Medium Voltage Vacuum Contactor Inspection ...........................................................................................................41
4) Medium Voltage Vacuum Contactor Testing .................................................................................................................41
5) Isolating Switch Adjustment ............................................................................................................................................... 41
6) Power Fuse Inspection .......................................................................................................................................................... 42
Ch 6 Maintenance ..........................................................................................................43
A. MAIntenAnce precAutIonS ................................................................................................................................ 43
B. preventAtIve MAIntenAnce GuIDelIneS ............................................................................................................... 43
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