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Brand: TRANCHART
Packaging: cotton
Transportation: Ocean,Land
Place of Origin: Changzhou
Port: Shanghai,Ningbo
Payment Type: L/C,T/T
Incoterm: FOB
12kv Pole Mounted Main Switch Circuit Breaker Power Breaker Switch ZW20A
Working Voltage: | 12KV | Working Current: | 630A 1250A 2000A |
Frequency: | 50/60Hz | Standards: | ISO9001:2015,CCC,ISO9001,CE, CB,IEC60898 |
MECHANICAL LIFE: | 10000 Times | SERVICE CONDITION: | Outdoor |
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.
Normal service condition:
1. Ambient air temperature: -40℃~+40℃; daily temperature difference: daily temperature change is not more than 25℃;
2. The wind speed is not more than 35m/s;
3. There is no place where there is flammability, explosion hazard, strong chemical corrosives (such as various acids, alkalis or dense smoke, etc.) and severe vibration.
4. Altitude: ≤1000m;
5. Covering thickness: 10mm;
6. Air pollution degree: Level IV;
7. Earthquake intensity: ≤7 degrees;
8. The neutral point grounding method of the power grid: the neutral point is not grounded, the neutral point is grounded through the arc suppression coil, and the neutral point is grounded through low resistance.
Technical Parameters
No. | Item | Unit | Value |
1 | Rated voltage | kV | 12 |
2 | Rated frequency | Hz | 50 |
3 | Rated current | A | 63,012,502,000 |
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 |
Product Categories : Circuit Breaker > High-Voltage Vacuum Circuit Breaker
Mr. simon.tang
Tel:
86-519-85131880
Fax:
86-519-85131880
E-mail:
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.