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

Description
Features
Operating mechanism
functions
Operating mechanism for
circuit-breaker feeder
18
7.2

Vacuum circuit-breaker type 2

• Vacuum circuit-breaker for rated voltages from 7 .2 kV to 24 kV
• According to IEC/EN 62 271-100 / VDE 0671-100
• Climate-independent vacuum interrupter poles in the gas-filled switchgear vessel
• Application in hermetically welded switchgear vessel in conformity with the system
• Operating mechanism located outside the switchgear vessel in the front operating
mechanism box
• Maintenance-free according to IEC/EN 62 271-1 / VDE 0671-1
The closing and opening springs are charged by means of the operating lever supplied,
or by the motor (option), until the latching of the closing/opening spring is indicated
("spring charged" indicator). Then, the vacuum circuit-breaker can be closed manually or
electrically (option).
The operating mechanism assigned to a circuit-breaker feeder consists of
the following components:
• Operating mechanism for circuit-breaker
• Operating mechanism for three-position disconnector
• Motor operating mechanism (optional)
• Position indicators
• Pushbuttons for CLOSING and OPENING the circuit-breaker
• Mechanical operations counter (optional)
• Interlocking between circuit-breaker and disconnector
• "Spring charged" indicator
Assignment of operating mechanism type to panel types
Panel type L
Function Circuit-breaker
Type Stored-energy
Operation Manual/motor
The vacuum circuit-breaker consists of a vacuum interrupter unit with integrated
three-position disconnector located in the switchgear vessel, and the associated
operating mechanisms.
The vacuum circuit-breaker is a circuit-breaker without automatic reclosing.
For further data, see Page 41, "Technical data".
Revision 03 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * 500-8067.9
Three-position disconnector
Disconnector Earthing switch
Spring-operated Spring-operated
Manual/motor Manual