Electric Protection System

Vacuum Circuit Breaker

    Size: 2225*2585mm

     

    Standard: IEC 60099

     

    Application: Vacuum circuit breaker is a special type of circuit breaker, whose internal core components use vacuum for insulation and arc extinguishing.

Shanghai Metal Corporation is a leading Vacuum Circuit Breaker manufacturer and supplier.

Vacuum circuit breaker is an indoor distribution device in a 3-10kV, 50Hz three-phase AC system, which can be used for the protection and control of electrical equipment in industrial and mining enterprises, power plants, and substations. It is particularly suitable for use in places that require oil-free, less maintenance, and frequent operation. Circuit breakers can be configured in central cabinets, double-layer cabinets, and fixed cabinets to control and protect high-voltage electrical equipment.

Vacuum circuit breakers mainly consist of three parts: vacuum arc extinguishing chamber, electromagnetic or spring operating mechanism, bracket, base, insulation support component, insulator, and other components. It plays a very important role in the power system, controlling and protecting circuits. When faults such as short circuits, overload, and voltage loss occur in the circuit, the vacuum circuit breaker can quickly cut off the current, protecting the safety of the circuit and equipment. In addition, vacuum circuit breakers can also achieve remote control and automated operation, providing convenience for the intelligence and automation of the power system.

I If you want to know more about our Vacuum Circuit Breaker, please feel free to contact us, we will reply you within 24 hours.


Technical Information of Vacuum Circuit Breaker:

 

Item 

Unit 

Data

Rated voltage

KV

40.5

Rated power frequency withstand voltage 1min

KV

95

Rated lightning impulse withstand voltage

KV

185

Rated frequency

Hz

50

Rated current

A

630, 1250, 1600, 2000, 2500

Rated short-time withstand current

KA

20

25

31.5

Rated peak withstand current

KA

50

63

80

Rated short-circuit breaking current

KA

20

25

31.5

Rated short-circuit making current

KA

50

63

80

Rated short-circuit duration

s

4

DC component of rated short-circuit breaking current

 

51

Peak value of transient recovery voltage (TRV)

KV

114

Rated power supply voltage of closing and opening devices and auxiliary circuits

V

DC/AC 220V, DC/AC 110V

Rated operating sequence

 

O-0.3s-CO-15s-CO

Opening time

ms

20~50

Closing time

ms

30~80

DC time constant of rated short-circuit breaking current

ms

45

Rated cable charging breaking current

A

50

Service life

 

E2-C2-M2 (10000)

Rated short-circuit breaking current breaking times

times

20

Packaging of Vacuum Circuit Breaker:

 

Shanghai Metal Products are packed and labeled according to the regulations and customer's requests. Great care is taken to avoid any damage which might be caused during storage or transportation. In addition, clear labels are tagged on the outside of the packages for easy identification of the product I. D. and quality information.

1)Shanghai Metal Standard

2)Customization

 

 


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