ZW20-12 series outdoor intelligent high-voltage vacuum circuit breaker
The ZW20-12 series outdoor pole-mounted intelligent high-voltage circuit breaker adopts a miniaturized spring operating mechanism design, making it more stable and reliable. The enclosure uses sealing, explosion-proof, and insulation technology, with good overall sealing performance. This product uses vacuum arc extinguishing and SF6 gas as the insulation medium, making it a maintenance-free, high-quality pole-mounted circuit breaker.
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ZW20-12 series outdoor intelligent high-voltage vacuum circuit breaker
- Product details
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- Commodity name: ZW20-12 series outdoor intelligent high-voltage vacuum circuit breaker
The ZW20-12 series outdoor pole-mounted intelligent high-voltage circuit breaker adopts a miniaturized spring operating mechanism design, making it more stable and reliable. The enclosure uses sealing, explosion-proof, and insulation technology, with good overall sealing performance. This product uses vacuum arc extinguishing and SF6 gas as the insulation medium, making it a maintenance-free, high-quality pole-mounted circuit breaker.
Product Overview
The ZW20-12 series outdoor pole-mounted intelligent high-voltage circuit breaker adopts a miniaturized spring operating mechanism design, making it more stable and reliable. The enclosure uses sealing, explosion-proof, and insulation technology, with good overall sealing performance. This product uses vacuum arc extinguishing and SF6 gas as the insulating medium, and is a maintenance-free, high-quality pole-mounted circuit breaker product.
This product is mainly used for: switching on and off the load current and short-circuit current of the 10KV power system, suitable for substations and industrial and mining enterprises. It is equipped with an intelligent controller to protect and isolate faults in the power system; it is widely used in occasions with frequent grid operations. This circuit breaker can meet the various requirements of power automation control in conjunction with an intelligent controller and meets the corresponding technical standards required by the State Grid.
Operating Environment
◇ Ambient air temperature: -30℃~+40℃;
◇ Altitude: No more than 2000m;
◇ The surrounding air may be contaminated by dust, smoke, corrosive gases, steam, or salt spray;
◇ Wind speed does not exceed 34m/s without frequent violent vibrations;
◇ Pollution level: Level Ⅲ.
Technical Parameters
Serial Number
Item Name
Unit
Parameter
1
Rated Voltage
kV
12/24
2
Rated Frequency
Hz
50
3
Rated Current
A
630/1000
4
Rated Short-Circuit Breaking Current
kA
12.5/16/20/25
5
Rated Peak Withstand Current (Peak)
kA
31.5/40/50/63
6
Rated Short-Time Withstand Current (4S)
kA
12.5/16/20/25
7
Rated Short-Circuit Making Current (Peak)
kA
31.5/40/50/63
8
Mechanical Life
Times
10000
9
Rated Short-Circuit Breaking Current Breaking Times
Times
30
10
1min Power Frequency Withstand Voltage (Phase-to-Phase/Phase-to-Ground/Open Circuit)
kV
42/49/60
11
Lightning Impulse Withstand Voltage Peak (Phase-to-Phase/Phase-to-Ground/Open Circuit)
kV
75/85/125
12
Secondary Circuit 1min Power Frequency Withstand Voltage
kV
2
13
Net Weight
kg
140
14
SF6 Gas Rated Gauge Pressure
Mpa
0
Dimensional Drawing
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