What is the duration of the 10KV switchgear arc?
Normal is half a week, there are arcs rekindle
Are generally within 3 seconds, more than three seconds there is danger
What is the duration of the arc?
The switchgear in the entire switchgear in the open when the arc can produce; switchgear IAC test also have arc. Do not know what you are asking is the circuit breaker in the breaking test when the arc time, or in the IAC test arc duration!
Burst time: the standard requirements of the circuit breaker switch when the arc time is 3 ~ 15ms, the actual test of 3 ~ 9ms up, the arc time and the first phase of the opening time.
IAC arc duration: According to GB3906 requirements, you can choose 0.5s, 1s, 2s
Switchgear Rated parameters:
- Rated short circuit breaking current 31.5kA
- Rated short duration 4s
- Rated short time withstand current 31.5kA
- Rated peak withstand current 80kA
Vacuum circuit breaker: VD4
- Rated voltage 12kV
- Rated current line, segment switch and outlet switch: VD4-3150 / 1250-31.5 / 40
(1) 1min power frequency withstand voltage 42kV
(2) lightning impulse withstand voltage 75kV
- Rated short circuit breaking current 31.5kA
- Rated short duration 4s
- Rated short time withstand current 31.5kA
- Rated peak withstand current 80kA.
