VBDc-24 VCB/ Vacuum circuit breaker

VBDc-24 VCB/ Vacuum circuit breaker

1.Use spring energy storage. 2.Operating by two ways: manual or electric operation 3.The characteristics is accordance with GB1984-2003 AC High Voltage Circuit Breakers, JB3855-96 3.6~40.5kV indoor AC HV vacuum circuit breaker, relevant regulations of IEC62271-100 standard and the technical requirements of this product. 4.Use modular type operating mechanism and embedded pole The mechanical life is M2 and electrical life is E2
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Product Details

Main technical specification of VBDc-24



Name

Unit

Data

1

Rated voltage

kV

24

2

Rated frequency

Hz

50


 3


Rated insulation level

Power frequency withstand voltage/min


   kV

65

Rated lightning impulse withstand voltage

125

4

Rated current

A

630

1250

1600

2000

2500

3150


  5

Rated short circuit breaking current

Rated short-circuit duration


   kA

20

20





25

25

25





31.5

31.5

31.5

31.5

31.5


  6


Rated short circuit making current


   kA

50

50





63

63

63





80

80

80

80

80

7

Switching operations of short circuit current

Cycle

30

8

Rated short-circuit duration

s

4

9

Rated operating sequence


O-0.3s-CO-180s-CO

10

Mechanical endurance

Cycle

20000

11

Rated breaking current of single capacitor bank

A

630

12

Rated breaking current of back to back capacitor bank

A

400

Note: The specification of No.11 and No.12 in table 1 is the rated data if required.


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