3 Description
3.5 Arc Quenching
In an opening operation, the main contact that exists between the contact laminations 22.3 and the heat cylinder
22.41 is opened (Fig. 6, position b). The arcing contact, consisting of the pin 22.9 and the tube contact 22.11
remains closed, with the result that the current commutates onto the arcing contact.
22.11.19 KV 22.11.18 22.41 22.11 22.5 22.52
19
a)
22.11.17 HV 22.11.2 22.3 22.11.1 22.9 22.51 22.46 22.56
b)
C)
d)
a) CLOSED position
b) Opening: main contact in OPEN position
c) Opening: arcing contact in OPEN position
d) OPEN position
HV Heating volume
KV Compression volume
22.11 Tube contact
22.11.1 Nozzle
22.11.17 Piston
22.11.18 Valve plate
22.11.19 Valve group
22.11.2 Auxiliary nozzle
22.3 Contact lamination
22.41 Heat cylinder
22.46 Cam lever
22.5 Guide rail
22.51 Coupler
22.52 Pin
22.56 Lever
22.9 Pin (moving)
Fig. 6 Schematics of opening operation
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