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Help Center40.5kv36kv ZN85 High Voltage Vacuum Circuit Breaker For 40.5kv Switchgear
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Certification:GB1984, IEC
4.1 circuit breakers main fixed parameters (table 1)
|
Serial number |
Parameter name |
Unit |
Specification parameter |
|
1 |
Rated voltage |
kV |
40.5 |
|
2 |
1min labor frequency durable voltage (has effect value) |
kV |
95 |
|
3 |
Lightning surge withstanding voltage (peak value) |
kV |
185 |
|
4 |
Nominal frequency |
Hz |
50 |
|
5 |
Nominal current |
A |
1250 , 1600 , 2000 |
|
6 |
Fixed short-time withstanding electric current |
kA |
25 , 31.5 |
|
7 |
Fixed peak value withstanding electric current |
kA |
63 , 80 |
|
8 |
The rating short-circuits the duration |
s |
4 |
|
9 |
The rating short-circuits the drop-out current |
kA |
25 , 31.5 |
|
10 |
The rating short-circuits the pass to gather the electric current |
kA |
63 , 80 |
|
11 |
Fixed operation sequence |
O—0.3s—CO—180s—CO |
|
|
12 |
Opens breaks the time |
ms |
≤80 |
|
13 |
The rating short-circuits the drop-out current to open breaks the number of times |
time |
20 |
|
14 |
Single condenser bank drop-out current |
A |
630 |
|
15 |
Back to back condenser bank drop-out current |
A |
400 |
|
16 |
Fixed operation voltage |
V |
AC110/220 , DC1100/220 |
|
17 |
Mechanical life |
time |
10000 |
4.2, Circuit breaker main physical characteristics parameter (table 2)
|
Serial number |
Parameter name |
Unit |
Specification parameter |
|
1 |
The contact opens the distance |
mm |
20±2 |
|
2 |
Front the contact overtravel |
mm |
7.5±1.5 |
|
3 |
after the average Gathers floodg speed (contact just gathered 12mm) |
m/s |
0.8±0.2 |
|
|
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