Troubleshooting; Electric Terminal Scheme - Eaton Ulusoy URING36 L - SF 6 User Manual

TROUBLESHOOTING

Voltage indicator
Light / lights are off.
Cell front cover cannot be turned on or off.
Earthing disconnector cannot be turned on.
Load disconnector cannot be turned off.
Load disconnector cannot be operated
electrically.
Closing spring assembly engine is not
working.
(Engine mechanism is optional.)

ELECTRIC TERMINAL SCHEME

Voltage indicator light / lights are blown.
Voltage indicator connection cable socket may be fallen off.
For input cell: There is no voltage in medium voltage input cables.
For output cell : Check if the disconnector and the breaker are off.
Check if the earthing disconnector is off.
If on, turn off.
Check if the cell front cell is correctly placed.
Remove the cell front cover and turn the earthing blade on and off a
few times while the cover is open.
Check if the earthing disconnector is on.
Check if low voltage connections are done.
Check if low voltage fuses are off.
Check if the earthing blade is completely on.
Check if DC auxiliary supply source is charged or not.
Check the polarity of the connection made for DF supply source.
Check if low voltage connections are done.
Check if low voltage fuses are off.
Check if the earthing blade is completely on.
Check if DC auxiliary supply source is charged or not.
Check the polarity of the connection made for DF supply source.