VBDc/R-12P VCB/ Vacuum circuit breaker

VBDc/R-12P VCB/ Vacuum circuit breaker

1.Use spring operating mechanism.
2.Two types of energy storage:by manual and by electric
3.Its performance meets standards of GB1984-89 AC High Voltage Circuit Breaker, JB-3855-96 General Technical Specification Indoor High Voltage VCB, and relative provisions and technical requirements of IEC56 standard to this product.
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Product Details

Main technical specification of VBDc/R-12P Vacuum circuit breaker


Name

Unit

Data

1

Rated voltage

kV

12

2

Rated frequency

Hz

50/60

3

1 min power frequency withstand voltage

kV

42

4

Rated lightning impulse withstand voltage

kV

75

5

Rated current

A

630

1250

1600

 6

Rated short circuit breaking current

Rated thermal stable current (effective value)

 kA

20

20


25

25

25

31.5

31.5

31.5

 7

Rated short circuit making current (peak)

Rated dynamic stable current (peak)

 kA

50

50


63

63

63

80

80

80

8

Conductive circuit resistance of each phase

μΩ

50

45

35

9

Rated thermal stable time

s

4

10

Rated operating sequence


O-0.3s-CO-180s-CO

11

Mechanical life

Operations

10000


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