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High Voltage Outdoor Vacuum Circuit Breaker ZW7 40.5KV

High Voltage Outdoor Vacuum Circuit Breaker ZW7 40.5KV

High Voltage Outdoor Vacuum Circuit Breaker

Outdoor Vacuum Circuit Breaker ZW7

40.5KV electrical vacuum breaker

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Product Details
Product Name:
Outdoor High Voltage Vacuum Circuit Breaker
Rated Voltage:
Rated Current:
Breaking Current:
Mechanical Life:
10000 Times
Payment & Shipping Terms
Minimum Order Quantity
1 set
Packaging Details
wooden packing
Delivery Time
7 days
Payment Terms
D/A, T/T, L/C, L/C, D/P, MoneyGram, Western Union
Supply Ability
10000 pcs/month
Product Description

ZW7-40.5KV Outdoor high voltage Outdoor Vacuum Circuit Breaker



ZW7-40.5 outdoor high voltage vacuum circuit breaker is used for AC three-phase power system with 50Hz and voltage of 40.5KV, which is used for breaking, closing load current, overload current and short circuit current.

Main funcion:

1. Vacuum arc extinguishing, strong breaking capacity, long electrical life and 10,000 mechanical life;

2. Simple structure, maintenance-free, long maintenance period;

3. Good insulation performance and strong anti-pollution ability;

4. It can be equipped with spring or electromagnetic operating mechanism, with reliable mechanical performance and frequent operation; no fire and explosion hazard;

5. Built-in current transformer, the lecturer's precision reaches 0.2, which can realize three-phase interactive protection;

6. With condensation controller, it can keep the circuit breaker running reliably under certain temperature and humidity.

Environmental conditions:

1. Ambient air temperature: upper limit +50 ° C, lower limit -30 ° C;

2. Altitude: ≤3000m (If the altitude is to be increased, the rated insulation level will increase accordingly);

3. Wind pressure: no more than 700Pa (equivalent to a wind speed of 34m / s;

4. Amplitude: seismic intensity of 8 degrees;

5. Pollution level: Level III;

6. Large daily temperature difference: no more than 35 °C.

The main technical parameters:

NO Item Unit Value
1 Rated voltage KV 40.5
2 Rated insulation level Power frequency withstand voltage Dry test 95
Wet test 80
Lightning impulse withstand voltage (peak) 185
3 Rated current A 1250,1600,2000
4 Rated short-circuit breaking current KA 20,25,31.5
5 Rated operation sequence   0-0.3s-combination-180s-combination
6 Rated short circuit current breaking times 次/times 12
7 Rated short circuit closing current (peak) KA 50,63,80
8 Rated peak withstand current
9 Rated short-time withstand current KA 20,25,31.5
10 Rated short circuit continuous current S 4
11 Average opening speed m/s 1.5±0.2
12 Average closing speed 0.7±0.2
13 Contact closing bounce time s ≤2
14 Three-phase combined (minute) gate synchronous time difference ≤2
15 Closing time ≤150
16 Opening time ≤60
17 Mechanical life 次/times 10000
18 Rated operating voltage and auxiliary circuit rated voltage V DC220,110,24
19 DC resistance per phase circuit (without transformer) μΩ ≤100
20 Dynamic and static contacts allow wear thickness mm 3
21 weight kg 800

High Voltage Outdoor Vacuum Circuit Breaker ZW7 40.5KV 0

High Voltage Outdoor Vacuum Circuit Breaker ZW7 40.5KV 1

High Voltage Outdoor Vacuum Circuit Breaker ZW7 40.5KV 2



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