832-6063.0 * MAINTENANCE SIMOSEC * REVISION 02 101
Maintenance
Ö Install test fuse instead of the HV HRC (current limiting) fuse.
Ö Close switch-disconnector.
Ö Trip striker pin of test fuse.
Verify that the striker pin of the test fuse trips the switch-disconnector and that the
switch-disconnector is in the "TRIPPED" position.
Ö Open switch-disconnector.
Verify by control the movement of the switch position indication (see Fig. 5: Switch
position indication, page 12) that the tripping mechanism is charged.
While switching the three-position switch from CLOSED to OPEN position the
switch position indicator changes from TRIPPED to OPEN. This means that the
stored-energized mechanism is pre-charged.
Fig 80: HV HRC (current limiting) fuse assembly with fuse
installed
a
Test fuse (option)
s
Striker pin
d
Upper fuse contact
f
Lower fuse contact
g
HV HRC (current limiting) fuse
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