Specifications 1. VS1=ABB VD4
2. ISO9001 QC
3. 12kV 24kV Vacuum Circuit Breaker
General
VS1 series vacuum circuit breaker is indoor high voltage switch-gear with rated voltage 12kV, three-phsae AC 50Hz, which is developed by introducing from Switzerland, corporation technology and analyzing domestic profession development condition, productivity development manufacture product. The overall structure of this product is formed with the switch main body and operating device, used the compound insulation structure, does not have the pollution and the explosion hazard, and the insulation level is high.
This operating device of the series product is for the spring loaded type, can use the electrically operated operation, also can use the manual operation.
Technical Parameter
l Voltage ratings rated contact stroke
|
Item
|
Unit
|
Parameter
|
|
Rated frequency
|
Hz
|
50/60
|
|
Rated voltage
|
KV
|
12KV-33KV
|
|
1min Rated short-time power-frequency withstand voltage
|
Try test
|
KV
|
65
|
|
West test
|
60
|
|
Rated lightning impulse withstand voltage
|
KV
|
125
|
lCurrent ratings
|
Item
|
Unit
|
Parameter
|
|
Rated current
|
A
|
400/630/1000/1600
2000/2500/3150/4000
|
|
Circuit resistance at lowest rated contact force
|
|
≤80
|
|
Rate short-circuit breaking current
|
KA
|
20/25/31.5/40
|
|
Rated short-time withstand current
|
KA
|
20/25/31.5/40
|
|
Rated duration of short-circuit
|
S
|
3
|
|
Rated peak withstand current
|
KA
|
40
|
|
Rated short-circuit making current
|
KA
|
20/25/31.5/40
|
|
Rated operating sequence
|
O-11-CO-12-CO-13-CO-LOCK
|
