Description and operation
Operating d evice
L14--007EN/01
2/6
07--2003
E ALSTOM
Description of the mechanism
Drive shaft
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 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.
Closing shaft
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 : closing latch (14) / roller (16).
Diagram
5
32
33
26
5
32
6
14
10
2
33
11
3
8
15
12
9
4
16
7
34
17
1