Troubleshooting
Voltage indicator does not work.
Voltage indicator lamp failure.
Voltage indicator input cable failure.
For incoming switchgear: MV cables are not energized.
For outgoing switchgear: Check the LBS.
Front door of switchgear does not open/
close.
Check the earthing switch.If the earthing switch is open,
close the earthing switch.
The earthing switch does not open.
Check the front door of switcghear. Shell be closed properly.
Remove the front door of the switchgear and operate the earthing
switch.
Double check ES contact lubricating.
LBS can not closed.
Check the earthing switch if it is closed. Then you need to open.
LBS does not work with electrical
commands.
Check the LV cable connections.
Check the LV fuses.
Check the earthing switch.
Check the DC auxilliary supply.
Check the DC auxilliary supply polarity.
Please ensure that the switchgear is not fully manuel.
Charging motor does not work.
Check the low voltage cable connections
Check the low voltage fuses
Check the earthing switch
Check the motor supply
Check the motor supply polarity
Spare Part
Contact with sales department.
Ulusoy HMH24-02 Transformer Protection Switchgear (LBS Compound Fuse)
September 2020 www.eaton.com
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