Operating The Vacuum Circuit-Breaker Type 2 - Siemens 8DJH Series Installation And Operating Instructions Manual

Operation
Fig. 74: Control board of circuit-breaker panel type 2
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Operating the vacuum circuit-breaker type 2

Possible switching operations:
• Manual local operation, i.e. at the panel itself
• Electrical remote operation, e.g. from the control center
• Automatic operation from the installed protection equipment, e.g. SIPROTEC
If the circuit-breaker is equipped with a motor operating mechanism, the closing and
opening springs are charged automatically after applying auxiliary voltage.
The circuit-breaker can be closed via a closing pulse supplied by the closing coil.
If the circuit-breaker is operated manually, the closing and opening springs must be
charged manually (see Page 114, "Charging the spring energy store manually").
The circuit-breaker can be closed and opened with the pushbuttons.
The opening spring is charged together with the closing spring.
The control elements of the circuit-breaker are located at the panel front in the upper
control board.
ATTENTION!
Please do absolutely observe the following:
The max. service life of the circuit-breaker panel depends on the permissible
number of switching operations of the switching device used (see Page 44,
"Vacuum circuit-breaker " and see Page 43, "Three-position disconnector ").
Revision 03 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * 500-8067.9
a
Ready-for-service indicator
s ON pushbutton for circuit-breaker
d Actuating opening for DISCONNECTING,
three-position disconnector
f
Control gate/locking device for
three-position disconnector
g Actuating opening for EARTHING
h Position indicator for earthing switch
j
Position indicator for disconnector
k
Control gate/locking device for circuit-breaker
l Feeder designation label
; Socket of capacitive voltage detecting system
(HR system)
A
Actuating opening for "spring charging" at
the circuit-breaker
S Position indicator for circuit-breaker
D Operations counter (option)
F OFF pushbutton for circuit-breaker
G
Indicator for the circuit-breaker closing and
opening springs (not charged / charged)