 HomeProductsCircuit BreakerHigh-Voltage Vacuum Circuit Breaker12kv Pole Mounted Main Switch Circuit Breaker Power Breaker Switch ZW20A

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12kv Pole Mounted Main Switch Circuit Breaker Power Breaker Switch ZW20A

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Payment Type:

L/C,T/T

Incoterm:

FOB

Min. Order:

1 Unit

Transportation:

Ocean,Land

Port:

Shanghai,Ningbo

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Brand: TRANCHART

Supply Ability & Additional Information

Packaging: cotton

Transportation: Ocean,Land

Place of Origin: Changzhou

Port: Shanghai,Ningbo

Payment Type: L/C,T/T

Incoterm: FOB

Packaging & Delivery

Selling Units:: Unit

Package Type:: cotton

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

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