Description | 3
13/174
500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
3.4 Vacuum circuit-breaker type 2
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.
▪ Vacuum circuit-breaker for rated voltages from 7.2 kV to 24 kV
▪ According to IEC/EN 62271-100 / VDE 0671-100
▪ Climate-independent vacuum interrupter poles in the gas-filled 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 62271-1 / VDE 0671-1
Operating function
The closing spring and the opening spring are charged by means of the operating lever supplied,
or by the motor (option), until the latching of the springs is indicated ("spring charged"
indication). Then, the vacuum circuit-breaker can be closed manually or electrically (option).
Fig. 6:
Front operating mechanism box of circuit-breaker
panel type 2
1
Ready-for-service indicator
2
Motor for three-position disconnector (option)
3
Actuating opening for CLOSING/OPENING the three-
position disconnector
4
Three-position switch-disconnector locking device
5
Position indicator for three-position disconnector
6
Actuating opening for three-position disconnector,
EARTHING function
7
Sockets for capacitive voltage detecting system
8
Motor for circuit-breaker (option)
9
Circuit-breaker locking device
10
Position indicator for circuit-breaker
11
OFF pushbutton for circuit-breaker
12
Actuating opening for "spring charging"
13
"Spring charged" indicator
14
ON pushbutton for circuit-breaker
15
Auxiliary switch at the three-position disconnector
(option)
16
Auxiliary switch at the circuit-breaker (option)
3.5 Vacuum circuit-breaker type 1.1
▪ Vacuum circuit-breaker for rated voltages from 7.2 kV to 24 kV
▪ According to IEC/EN 62271-100 / VDE 0671-100
▪ Climate-independent vacuum interrupter poles in the gas-filled 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 62271-1 / VDE 0671-1
Operating function
The spring energy store is charged by means of the hand crank or by the motor (option), until
the latching of the spring energy store is indicated ("spring charged" indication). Then, the
vacuum circuit-breaker can be closed manually or electrically (option).
In operating mechanisms provided for automatic reclosing (AR), the closing spring can be
charged by hand, or automatically in case of motor operating mechanism. Immediate reclosing
is thus possible.
Summary of Contents for 8DJH
Page 173: ......
