Powell FlexTrol Class E2, Instruction Bulletin

Page: 6 / 65

Powered by Safety
®
ii
FlexTrol
™
Class E2 Medium Voltage Controllers with
Eaton Contactor
01.4IB.46300
Contents
l. M
otor
c
onnectIonS
........................................................................................................................................ 31
M. p
oWer
c
ABle
t
erMInAtIon
................................................................................................................................ 31
n. I
nSulAtInG
p
rIMAry
c
ABleS
............................................................................................................................... 32
o. G
rounD
f
Ault
c
urrent
t
rAnSforMerS
(t
hrouGh
t
ype
) ....................................................................................... 32
p. c
ontrol
c
ABleS AnD
c
onnectIonS
..................................................................................................................... 32
Q. S
urGe
p
rotectIon
........................................................................................................................................... 33
r. M
echAnIcAl
o
perAtIon
c
heck
.......................................................................................................................... 33
S. S
Afety
I
nterlockS
............................................................................................................................................ 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. G
enerAl
......................................................................................................................................................... 36
B. p
repArAtIon of the
c
ontroller for
o
perAtIon
................................................................................................... 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. t
eSt
p
oWer
c
IrcuIt
......................................................................................................................................... 38
D. h
I
-p
ot AnD
M
eGGer
t
eSt
................................................................................................................................. 39
1) Preparing for the Hi-Pot and Megger Test .......................................................................................................................39
2) Performing the Hi-Pot and Megger Test ...........................................................................................................................39
e. p
re
-o
perAtIon
t
eSt
......................................................................................................................................... 40
f. S
tArt
-u
p
p
roceDure
....................................................................................................................................... 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. M
AIntenAnce
p
recAutIonS
................................................................................................................................ 43
B. p
reventAtIve
M
AIntenAnce
G
uIDelIneS
............................................................................................................... 43