Outdoor high voltage vacuum circuit breaker
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ZW32-12 Type Outdoor High Voltage Vacuum Circuit Breaker
Application
ZW32-12 type outdoor high voltage vacuum circuit breaker is 3-phase AC50/60Hz outdoor power distribution equipment with the rated voltage of 12kV. It is mainly used to break and close the load current, over load current, and short circuit current in the electric power system. It fits to be used to protect and control the circuit in substation, mining and industrial enterprises. And the frequently operation places such as the rural power network. It can also be the section switch of power grid, after adding controller, distribution network automation is available.
Technical parameter
|
No. |
Item |
Unit |
Value |
|
1 |
Rated voltage |
kV |
12 |
|
2 |
Rated frequency |
Hz |
50 |
|
3 |
Rated current |
A |
630 |
|
4 |
Rated short-circuit breaking current |
kA |
20 |
|
5 |
Rated peak withstand current |
kA |
50 |
|
6 |
Rated short-time withstand current (4s) |
kA |
20 |
|
7 |
Rated short circuit close current (peak) |
kA |
50 |
|
8 |
Mechanical life |
times |
10000 |
|
9 |
Rated short open circuit current switching frequency |
times |
30 |
|
10 |
1 min power frequency withstand voltage(wet)(dry) alternate with, on/fracture |
kV |
42/48 |
|
11 |
Lightning impulse withstand voltage(peak) relative to ground/fracture |
kV |
75/85 |
|
12 |
Secondary loop 1min power frequency withstand voltage |
kV |
2 |
ZW32-12FG/T630-25 12kv remote control auto recloser circuit breaker
Overview:
ZW32-12FG/T630-25 Type Outdoor high voltage vacuum circuit breaker is a outdoor distribution equipment with AC 50Hz,rated voltage 12kV and three-phase ac. It is mainly used for open circuit power distribution network and close the load current, overload current, short circuit current in power system.It is suitable for the transformer substation and factory power distribution system for protection and control use. Especially suitable for urban power grid and rural power grids.
Service conditions:
1. Ambient
Temperature: -40℃~+65℃，daily temperature≤25℃;
2. Altitude: ≤2000m
3. Wind speed: ≤35m/s
4. Earthquake intensity: ≤8
5. Anti-fouling property: IV level
6. Installation site: Not putting inflammable, explosive, chemical corrosion.
Technical parameters:
|
NO. |
Item |
Unit |
Numeric |
|
|
1 |
Nominal Voltage |
kV |
12 |
|
|
2 |
Rated Frequency |
Hz |
50 |
|
|
3 |
Rated Current |
A |
630/1250 |
|
|
4 |
Rated Short-circuit Breaking Current |
kA |
20 |
|
|
5 |
Rated Stability rated current |
kA |
50 |
|
|
6 |
RMS/Rated the rmal stabilization |
kA/S |
20/4 |
|
|
7 |
Mechanism life |
times |
10000 |
|
|
8 |
Rated short-circuit closing breaking Number |
times |
30 |
|
|
9 |
Rated operating sequence |
O-0.3s-CO-180s-CO |
||
|
10 |
Rated breaking current number |
tmes |
10000 |
|
|
11 |
Rated short-circuit close-open current |
kA |
50 |
|
|
12 |
1min Power-frequency withstand |
Dry |
kV |
42/48 |
|
Wet |
kV |
34 |
||
|
13 |
Lighting impulse withstand voltage(Peak Value) |
kV |
75/85 |
|
|
14 |
Secondary circuit 1min Power-frequency withstand |
kV |
2 |
|
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