Dead Tank Circuit Breaker

Product description

ZW20-12 type outdoor pole- mounted vacuum interrupter to arcing,SF6 as insulating medium.12kv rated voltage and three-phase AC 50 Hz outdoor distribution equipment and maintly used to switching and making load current,overcurrent and short circuit current of power grid.

This type vacuum circuit breaker can be used for protecting, controlling in the frequent operation places of transformer substation, industrial and mining enterprises, rural power distribution system.It's equipped with controller to meet the requirements of distribution automation system.

Service Condition

1.Altitudes:2000 meters

2.The environment temperature:-30ºC-+55ºC outdoor; the highest annual average temperature 20 ºC, the highes: daily average temperature 30ºC

3.Relative humidity: 95% (25ºC

4.Seismic capacity: horizontal ground acceleration 0.3g, vertical ground acceleration 0.15g, at the same time duration of three sine waves, a safety factor of 1.67

5.Earthquake intensity: 7 degrees

6.The maximum daily temperature difference: 25 ºC

7.The intensity of sunshine (wind speed 0.5m/s): 0.1W/cmi

8.The maximum wind speed: 34m/s

9.The maximum ice thickness

10.Installation position: outdoor, the 10kV overhead line responsibility demarcation point

11.Grounding: neutral non-grounding, arc suppression coil grounding, and low resistance grounding

FAQ：

Q1: Are you a factory or trading company

A1: We are a factory, we can guarantee our price is first-hand, very cheap and competitive.

Q2: How does your factory do regarding quality control?

A2: All the products will be 99% checked before the shipment.

Q3: When can I get the price?

A3:Usually we quote within 24 hours after we get your inquiry.