Installation
98 Revision 03 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * 500-8067.9
Checking the accessories Ö Ensure that the following accessories are ready to hand:
• Operating instructions
• Operating lever to operate the switchgear
• Circuit diagrams
• Warning signs
14.2 Mechanical and electrical function test
Mechanical function test The mechanical function is tested without high-voltage.
Ö Switch the operating mechanism several times by hand. Check position indicators
and interlocks, and verify smooth operation of covers.
Ö Test fuse tripping with test fuse.
Ö Install and check HV HRC fuse-links.
Ö Check the ready-for-service indicator. Then, the pointer must be in the green area.
Test operation/
Electrical function test
Test operation helps you to verify the perfect operation of the switchgear without high
voltage before commissioning.
Ö Switch the three-position switch-disconnector with motor operation several times to
CLOSED and OPEN position.
Ö Make sure that the three-position switch is switched to OPEN position after
completion of test operation.
Ö Switch on all auxiliary and control voltages and verify correct polarity.
Ö Check whether the mechanical and/or electrical interlocking conditions are fulfilled
without using excessive force.
Ö Check whether the switch positions of the three-position switches are displayed
correctly.
Malfunction during
test operation
If there are any faults that cannot be cleared at site:
Ö Do not put the switchgear into operation.
Ö Inform the competent Siemens representative.
DANGER!
Putting defective switchgear into operation can endanger the life of people and damage
the switchgear.
Ö Never put switchgear into operation if you notice during test operation that a part of
it does not work as described in here.
Ö Perform test operations with auxiliary voltage only!
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