ZW7-40.5KV Outdoor Pole switches 35kV H.V. High Voltage Vacuum Circuit Breaker

The ZW7-40.5 outdoor high-voltage vacuum circuit breaker adopts a uniquely designed split pole and a highly reliable operating mechanism. The device is mainly used in medium-voltage overhead line power grids for dividing and combining load current, overload current, and short-circuit current.

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ZW7-40.5KV Outdoor Pole switches 35kV H.V. High Voltage Vacuum Circuit Breaker

Electrical Products

Structure
Features
Use Conditions
Parameters
Dimensions

Structure of ZW7-40.5KV Outdoor High-Voltage Vacuum Circuit Breaker 33kV 35kV

ZW7-40.5 outdoor high-voltage vacuum circuit breaker is mainly composed of integrated pole, current transformer, operating mechanism and box. This type of vacuum circuit breaker outdoor is of miniaturized design, and the shell is made of high-quality steel box. Current transformer can be selected according to user needs.

ZW7-40.5 outdoor high-voltage vacuum circuit breaker and matching intelligent control combination. The switch opening and closing operation can be realized locally, and it can also be remotely operated through the communication interface. Other information of the circuit breaker can also be transmitted to the control center, and the communication channel can choose cable, optical fiber, GPRS/CDMA, GSM, etc.

Features of ZW7-40.5KV Outdoor High-Voltage Vacuum Circuit Breaker 33kV 35kV

1. Extremely high reliability
2. Completely maintenance-free throughout its lifetime
3. Has high mechanical and electrical life
4. The whole machine is small in size, light in weight, easy to install

Use Conditions of ZW7-40.5KV Outdoor High-Voltage Vacuum Circuit Breaker 33kV 35kV

1. Ambient air temperature: -30℃～+60℃;
2. Altitude: no more than 2000 meters;
3. The wind speed does not exceed 34m/s;
4. Vibration or ground motion from outside the switchgear and control equipment is negligible;
5. Contamination level: IV;
6. Storage temperature -40℃～+85℃.

Technical Parameters of ZW7-40.5KV Outdoor 35kV HV Vacuum Circuit Breaker

S/N	Item	Unit	Data
1	Rated voltage	kV	40.5
2	Rated current	A	1250/1600
3	Rated frequency	Hz	50 or 60
4	Power frequency withstand voltage 1min (wet) (dry) Phase-to-phase, to ground/fracture	kV	80 95/95
5	Lightning impulse withstand current (peak value) Phase-to-phase, to ground/fracture	kV	185
6	Rated short-circuit breaking current	kA	25/31.5
7	Rated short-circuit making current (peak)	kA	63/80
8	Rated peak withstand current	kA	63/80
9	4S short-time withstand current	kA	25/31.5
10	Rated operating cycle		O-0.1s – CO – 3s – CO – 6s CO- 60s recovery
11	Rated short-circuit current breaking times	Times	30
12	Mechanical life	Times	10000
13	Mechanism control voltage	V	AC/DC220
14	Secondary circuit 1min Power frequency withstand voltage	kV	2