System inspection,
maintenance and repair
54
Power Xpert
®
UX with W-VACi
circuit breaker 6063308 G01 01 14 July 2011 www.eaton.com
Symptom
Possible cause
What to do:
Fault during electrical switching
on or off.
Auxiliary voltage too low.
Fault in closing circuit (auxiliary
contact).
Make coil or break coil burnt out.
Rotary spring not charged or spring-
tensioning motor faulty.
Check auxiliary voltage.
Withdrawable unit cannot be
(completely) inserted into the
panel.
The height of the truck is not properly
set.
Unit is turned On/Closed
Drive in the wrong position.
Set the height of the transport trolley properly.
Turn unit Off/Open
Put drive in correct position.
Withdrawable unit cannot be
moved.
Unit is in the ON/Closed position.
Turn Unit ‘Off’/’Open’.
Withdrawable unit will not move
from ‘TEST’ to
‘Service/Connected’ position.
Earthing switch is ‘On’.
Withdrawable unit is ’On’/’Closed’.
Turn earthing switch ’Off’.
Turn unit ’Off’/’Open’.
Withdrawable unit will not move
from ‘Test’ to ‘Insert/Withdrawn’
position.
Unit is ’On’.
Turn unit ‘Off’/’Open’.
Withdrawable unit will not move
from ’Service/Connected’ to
‘Test’ position.
Unit is in the ‘On’/’Closed’ position.
Turn unit ‘Off’/’Open’.
Circuit breaker will not open or
close when given an electrical
command or the mechanical
buttons pushed on the door.
Breaker mechanism electro-mechanical
interlock fitted and 58 pin socket not
plugged in.
No control voltage present.
Connect the 58 pin socket.
Apply relevant control voltage.
Circuit breaker will not rack in or
out of the panel, the racking in
handle appears to be jamed.
Carriage electro-mechanical interlock
fitted and 58 pin socket not plugged in.
No control voltage present.
Connect the 58 pin socket.
Apply relevant control voltage.
