• Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet
  • Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet
  • Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet
  • Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet
  • Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet

Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet

Breaking Capacity: High Voltage Circuit Breakers
Operation: Manual Type
Speed: High-Speed Circuit Breaker
Arc-extinguishing Medium: Vacuum
Installation: Fixed
Structure: ACB
Customization:

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Basic Info.

Model NO.
ZW8-12(G)
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Certification
ISO9001-2000
Transport Package
Wooden Box
Trademark
zhuowoma
Origin
China
HS Code
8535210000
Production Capacity
2000 Pieces / Year

Product Description

Overview
       Zw8-12 (G) type outdoor high voltage vacuum circuit breaker, three-phase AC 50Hz outdoor high voltage switchgear. It is composed of operating circuit, conductive circuit, insulation system, sealing parts and shell. The overall structure is three-phase total box type. Used in 10kV rural power network and urban power system, as load current, overload current, short circuit current and other similar places.

Executive standard: GB1984-2003 "high voltage AC circuit breaker"; GB/T11022-1999 "High voltage switchgear and control equipment standard common technical requirements"; 1IEC62271-100 HIGH voltage AC circuit Breaker
Types of meaning Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet Normal service conditions
1. Ambient temperature: -40°C ~+40°C

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

3. The ambient air can be polluted by dust, smoke, corrosive gases, steam or salt spray, and the pollution level is IV;

4. The wind speed shall not exceed 34m/s (equivalent to 700Pa on the cylinder surface);

5. Vibration or ground motion from outside the switchgear and control equipment can be ignored;

6. Special conditions of use.

If the application is required under normal use conditions other than those specified above, please consult with us.




Main technical parameters
The serial number The name of the unit data
1 The rated voltage KV 12
2 Rated current A 630  1250
3 Power frequency dry withstand voltage (1 min)   42
4 Lightning shock withstand voltage (peak) KV 75
5 Rated short-circuit breaking current KV 16  20  25
6 Rated short circuit switching current   40  50  63
7 Rated peak tolerance current KA 40  50  63
8 4S short-time withstand current KA 16  20  25
9 Rated order of operation   Points -0.3s- points -180s- points
10 Rated short-circuit current times of breaking times 30
11 Mechanical life times 10000
12 Rated voltage of energy storage motor V
13 Rated operating voltage with special spring operating mechanism V DC/AC220
    V DC/AC220
14 Rated current of overcurrent tripper A 5
15 Allowable wear thickness of static contact mm 3
16 From contact mm 11±1
17 (Overstroke (contact spring compression length) mm  
18 Tripole and brake are not synchronous ms ≤2
19 Contact closing spring time ms ≤2
20 Average opening speed m/s 1±0.2
21 Average closing speed m/s 0.7±0.15
22 Break-brake time s 0.015-0.05
    s 0.03-0.06
23 Closing time s 0.025-0.05
24 Main circuit resistance μΩ ≤12(G≤200)

Overall dimensions
Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet


Zw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution CabinetZw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution CabinetZw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution CabinetZw8-12 (G) Type B Electric Load Control Metering Box Oil Transformer Power Distribution Cabinet

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