ZW43-12 Outdoor AC Vacuum Circuit Breaker
PRODUCT DESCRIPTION
ZW43-12 model outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in12kV,50/60Hz power system. Its applicable for
PRODUCT DESCRIPTION
ZW43-12 model outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in12kV,50/60Hz power system. Its applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network. It accords with the standard of IEC62271-100& GB1984AC high voltage circuit breaker, GB/T 11022 HV general technical requirement of switch and control apparatus.
AMBIENT CONDITION
1. Altitude: ≤2000mm;
2. Ambient temperature:-40℃~+45℃;
3. Earthquake intensity: ≤8 degree;
4. Ice thickness:10mm;
5. Wind speed: ≤34m/s (air pressure≤700Pa).
MODEL
PRODUCT FEATURE
- Mini vacuum arc extinguish
High reliability; small volume; long life time; fixed inside the epoxide resin.
- Epoxide resin sealing
Anti-ozone, anti-ultraviolet; It is firm, light and convenience for transport.
- Permanent magnet mechanism
Small volume, reliable performance, non-maintenance.
- Manual breaking
Improve the reliability, It can operate under the urgent condition.
- Direction tester
It mounted on the linkage axial to check the opening and closing direction.
- Switch case
Aluminium-alloy material, anti-rust steel and armor plate.
MECHANICAL SPECIFICATION
|
No. |
Item |
Unit |
Data |
|
1 |
Rated voltage |
Kv |
12 |
|
2 |
Rated frequency |
Hz |
50/60 |
|
3 |
Rated current |
A |
630 |
|
4 |
Rated short-circuit breaking current |
kA |
20 |
|
5 |
Rated peak withstand current(peak) |
kA |
50 |
|
6 |
4s rated short-time withstand current |
kA |
20 |
|
7 |
Rated short-circuit making current(peak) |
kA |
50 |
|
8 |
Mechanical duration |
Times |
30000 |
|
9 |
Breaking time of rated short-circuit breaking current |
Times |
30 |
|
10 |
1min P.F withstand voltage-dry (phase to phase, to earth; across open contacts) |
kV |
42/49 |
|
11 |
1min P.F withstand voltage-wet |
kV |
34 |
|
12 |
Lightning impulse withstand voltage peak (phase to phase, to earth; across open contacts) |
kV |
75/85 |
|
13 |
Net weight |
kg |
70 |
|
14 |
Abrasions thickness of contacts |
mm |
3 |
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