High Voltage SF6 AC Circuit Breaker
30/30
Test before working
Technical
request
Test
result
Remark
Measuring spring store
energy time
≤
15s
Switch on time
75±8ms
Switch off time
30±3ms
Check the manual
operation device
Measuring
mechanical
characteristic
Check the trip prevent
device
Measuring the resistance of main loop
≤
40µ
Ω
Measuring insulation resistance
∝
Power frequency voltage withstand test
230kV
Alarm pressure
0.55MPa
Pressure test
Closedown pressure
0.50MPa
Circuit breaker leak check
≤
0.5%
9
Measuring moisture
≤
150ppm
10
Register the circuit breaker’s operating
times
11
Clear the locale, cover the cover board
12
Connect the primary busbar, ready to work
The user’s checker:
director
：
date
：
The manufacturer’s checker
：
director
：
date
：
The added test items of user required:
j
j
e
e
m
m
y
y
_
_
l
l
e
e
e
e
@
@
h
h
o
o
t
t
m
m
a
a
i
i
l
l
.
.
c
c
o
o
m
m
