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C- GIS 12/40.5kV indoor high voltage vacuum circuit breaker

The three-position switch and the circuit breaker switch of CVB series indoor high-voltage vacuum circuit breaker adopt an integrated assembly structure, which has reliable mechanical and electrical interlocking functions, is easy to install, and is conducive to ensuring the concentricity of the body components and high reliability. The vacuum bubble is made of high-quality products from domestic manufacturers to meet the relevant performance requirements and reliability guarantee.
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Product Parameters

Performance characteristics

 

1. The direct-acting three-position switch is adopted, and the electric field distribution is uniform.

2. The three-station mechanism adopts a double-hole operating mechanism with a programmable control module to ensure operational reliability.

3. Integrated structure, circuit breaker and three-position mechanism with reliable mechanical and electrical interlocking function.

4. The mechanism parts adopt zinc-nickel alloy coating scheme, which has high salt spray resistance.

 

 

Technical parameters

 

Serial Number

Rated parameters

Unit

Parameter Value

1

Rated voltage

kV

12

40.5

2

Rated insulation level

Rated short-time power frequency withstand voltage (1min)

Interphase, relative ground, vacuum fracture

kV

75

95

Rated lightning impulse withstand voltage (peak)

Interphase, relative ground, vacuum fracture

85

185

1min power frequency withstand voltage of auxiliary circuit

2

3

Rated frequency

Hz

50

4

Rated current

A

630、1250、2500

5

Rated short-time withstand current

kA

25

31.5

6

Rated peak withstand current

kA

63

80

7

Rated short circuit duration

s

4

8

Rated short-circuit breaking current

kA

25

31.5

9

Rated short-circuit closing current (peak)

kA

63

80

10

Rated operating sequence

 

O-0.3s-CO-180s-CO

11

Mechanical life

Times

10000(M2)

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