GE GL317D, Instruction Manual

Page: 25 / 296

Description and operation
Pole operation
(Interrupting principle)
GE Information
L13- 011EN/03
5/8
03- 2017
Opening
Opening When an electrical or manual opening order is given, the energy accumulated
in the opening spring (9) is released.
The insulating tie- rod (10), directly activated by the opening spring (9), trans-
mits the movement to the transfer mechanism (11) inside the housing which
causes the contacts to separate simultaneously in both chambers.
9
10
11
Self- timing of the
resistor insertion
device
After the separation of main contacts (3) and beginning of gas compression
(G), the resistor insertion device (5) return is time- delayed by pneumatic
effect (depression of the “X” volume).
5 3 G X
R
Continued on next page.