GE GL317D Instruction Manual page 30

Sf6 circuit- breaker
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Description of the mechanism
Drive shaft
Closing shaft
Diagram
11
33
34
11- 2016
Description and operation
Operating device of circuit- breaker
D The main shaft (1) is linked up to the the circuit- breaker pole by means
of a cylinder (2).
D A damper (4) is linked up to the lever (32).
D In the "CLOSED" position, the main shaft (1) rests on the opening latch
(6) by means of the lever (5).
D In the "OPEN" position, the lever with roller (11) rests on the closing
cam (10).
D The opening spring (3) activates the lever (33) by means of the chain
(34). This spring is a pressure helical type.
NOTE : The levers (5)- (11)- (32) (33) form one piece only.
D On the closing shaft (7) are placed :
- The inertia flywheel (8).
- The closing cam (10).
- The cam (26) that engages the limit switch (17) of the motor (12).
D The closing spring (9) activates the inertia flywheel (8) by means of the
chain (15). This spring is a pressure helical type.
The rotation torque - created on the inertia flywheel (8) by means of the
loaded closing spring (9) - is balanced by closing latch (14) / roller (16).
8
12
32
5
11
GE Information
9
15
17
34
30
11
10
7
16
14
26
17
33
3
33
2
1
32
4
6
31
5
12
L14- 005EN/05
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