Checking Service Readiness - Siemens 8DJH Installation And Operating Instructions Manual
Medium-voltage switchgear
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- Installation and operating instructions manual (129 pages) ,
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- Installation and operating instructions manual (121 pages)
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7.9 Checking service readiness
500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
The switchgear vessels are filled with insulating gas and are under pressure. Before starting
installation, the gas filling of the panels must be checked by means of the ready-for-service
indicator.
1. Read the ready-for-service indicator ( [▶ Page 135, "Ready-for-service indicator"]).
✓ If the pointer of the ready-for service indicator is in the green area, the gas density is in
order.
If the pointer of the ready-for-service indicator is in the red area:
2. Check the signaling switch of the ready-for-service indicator.
Checking the signaling switch
During transport, the signaling switch of the ready-for-service indicator can latch tight in the red
area due to vibrations.
1. Remove the front cover, [▶ Page 127, "Removing and mounting the front cover"] observe
the instructions specified there.
2. Push the roller lever of the signaling switch carefully towards the switch.
✓ The sector disk must return automatically until the pointer of the ready-for-service indicator
is in the green area again. If not, please stop the installation and contact the Siemens
Siemens Service Hotline.
Fig. 32: Roller lever and sector disk
1
Roller lever
2
Signaling switch
3
Sector disk
Fig. 33: Pointer position after operation of
the roller lever
Installation | 7
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