Outdoor Pole Mounted High Voltage Vacuum Circuit Breaker Three Phase
Brand Name:Tianan Electric
Model Number:ZW20A-12
Minimum Order Quantity:5sets
Delivery Time:45 days
Payment Terms:T/T, L/C, D/A, D/P
Place of Origin:Ningbo,China
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Location:
Ningbo Zhejiang China
Address:
3/F, Building B7 , 999 Yangfan Road,High-tech Zone, Ningbo, China 315040
Supplier`s last login times:
within 25 hours
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Product Details
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Product Details
High Voltage Vacuum Circuit Breaker , Outdoor Pole-mounted Vacuum
Breaker
General
ZW20A-12 Outdoor Pole-mounted Vacuum Circuit Breaker is a kind of
outdoor distribution equipment, three-phase, AC50Hz, with rated
voltage of 12kV. It is mainly used in power distribution network to
break, open and close load current, overload current and
short-circuit current. It is also used in substation, industrial
and mining enterprises, urban and rural power grid for control and
protection. And it is more suitable for frequency operation and the
urban distribution automation network.
Model meaning:
Z W 20 A - 12 / T - 0 0
Z: vacuum circuit breaker
W: Outdoors
20A: Design Number
12: Rated voltage (KV)
T: spring operating mechanism
0: Rated current (A)
0: Rated short-circuit breaking current (kA)
Environmental Conditions
1. Altitude: ≤1000m; if applied in special conditions, it is
designed to 2000m to 4000m to meet the requirements of different
altitudes.
2. Ambient temperature: -45℃~+40℃;
3. Wind speed≤35m/s;
4. It is placed in the places without violent vibration
Technical Parameters
| 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 (peak) | kA | 50 |
| 6 | Rated short-time withstand current/endurance | kA/s | 20/4 |
| 7 | Rated short-circuit making current (peak) | kA | 50 |
| 8 | Rated operating sequence | O-0.3s-CO-180s-CO | |
| 9 | Mechanical endurance | Time | 10000 |
| 10 | Rated short circuit breaking current breaking times | Time | 30 |
| 11 | Rated cable-charging breaking current | A | 25 |
| 12 | Power frequency withstand voltage(1min): Dry test (wet) phase-to-phase, to earth/fracture(wet test) | kV | 42(34)/48(36) |
| 13 | Lightning impulse withstand voltage(peak) phase-to-phase, to earth/fracture | kV | 75/85 |
| 14 | 1min power frequency withstand voltage of secondary circuit | kV | 2 |
Outdoor Pole Mounted High Voltage Vacuum Circuit Breaker Three Phase
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