Product Description
Description
1HSB515432-100 en rev2 1
1. Description
The spring operating mechanism BLG 1002A is intended for operating a circuit-
breaker with integrated opening springs. The opening springs are charged
automatically by the mechanism on closing of the circuit-breaker, whereby the
requisite energy for opening is obtained. Under no circumstances may the
mechanism be operated with the spring battery charged, without first being fitted
and trimmed with the associated circuit-breaker.
In principle the operating mechanism consists of a spring battery, which is charged
by a motor fitted with a worm gear, and a mechanism for actuating the opening and
closing action. The spring battery is automatically charged after each closing
operation.
The component parts of the operating mechanism are integrated in a cabinet, which
also contains a control panel with operating equipment. The top and doors of the
cabinet can be removed to facilitate service and overhaul procedures.
The standard operating cycle is O - 0.3 s - CO - 3 min - CO. The time between
closing operations should not be less than 1 minute during the testing of circuit-
breakers and relay systems involving more than 3 closing operations.
Figure 1-1. Operating mechanism
Item
1 Drive unit
2 Operating
mechanism
3 Control panel
4 Spring battery
5 Heater element
1
2
4
3
5
B20001
To Next Page
Loading...
