HMH24-01 Checkings Before Energizing the Switchgears
HMH24-01 Test to be Carried out Before Energizing Switchgears
Place the switchgear front door.
Check if there are any foreign objects within switchgears.
Check the connection points of switchgears.
Ensure that toroid current transformers are connected properly, if any.
Ensure that front door is placed firmly.
If the front door is not placed firmly, operating handle/lever cannot be inserted.
Operating load break switch and earthing switch a few times.
0
00
II
ANKARA
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ULUSOY
Standard: IEC 62271-200
0
I
0
I
CLOSE
THE SWITCHGEAR’S
DOOR
OPEN
THE EARTHING
SWITCH
ASSEMBLE
THE COIL SPRING
LOAD BREAK
SWITCHGEAR
CLOSE
LOAD BREAK
SWITCHGEAR
OPEN
IS THERE ANY
OPERATION ON
THE SWITCHGEAR?
CLOSE
THE EARTHING
SWITCH
OPEN
THE SWITCHGEAR’S
DOOR
OPERATIONNAL
DIAGRAM
YES
NO
IF THIS SWITCHGEAR IS USED AS AN
INCOMING FEEDER DO NOT CLOSE
THE EARTING SWITCH BEFORE CUTTING
DOWN THE ENERGY FROM PREVIOUS STATION
!
DO NOT INTERFERE WITH THE EARTHING
MECHANISM WHILE THE LOAD BREAKER
SPRING IS CHARGED
!
Operating Hole
Earthing Switch
Operating Hole for Spring
Charging
Padlock Facility
LBS and Earthing Switch
Mimics (indicators)
ON (I)
Button
OFF (0)
Button
Ulusoy HMH24-01 Incoming-Outgoing Switchgear with LBS User Manual
August 2020 www.eaton.com
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