REPLACING THE VOLTAGE INDICATOR
ELECTRIC TERMINAL SCHEME
Voltage Indicator
To replace a faulty voltage indicator:
Open the front cover of low voltage assembly board of the switchgear.
Remove the faulty indicator by dismantling its latches and replace it with a new one. This procedure can be performed when
the switchgear is switch OFF.
Troubleshooting
Voltage indicator
Light / lights are OFF.
Voltage indicator light / lights are blown.
Voltage indicator connection cable socket may be fallen off.
For input switchgear:
There is no voltage in MV cables.
For output switchgear:
Check if the disconnector and the breaker are OFF.
Switchgear front cover cannot be turned ON or OFF.
Check if the earthing switch is oON.
If ON, turn OFF.
Earthing switch cannot be turned OFF.
Check if the switchgear front switchgear is correctly placed.
Remove the switchgear front cover and turn the earthing switch ON.
LBS cannot be turned ON.
Check if the earthing disconnector is OFF.
LBS cannot be operated electrically.
Check if LV connections are done.
Check if LV fuses are OFF.
Check if the earthing switch ON.
Check if DC auxiliary supply source is charged or not.
Check the polarity of the connection made for DC supply source
Spring charging motor is not working.
(Motor is optional equipment)
Check if LV connections are done.
Check if LV fuses are OFF.
Check if the earthing switch ON
Check if DC auxiliary supply source is charged or not.
Check the polarity of the connection made for DC supply source.
DC Auxiliary Supply
URING36-L
Load Disconnector
Auxiliary Contacts
Earting Disconnector
Auxiliary Contacts
OFF - ON
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Ulusoy URING36 - LLF - 3 Way Compact Switchgear with Fuse User Manual
May 2020 www.eaton.com
