VBDc/R-24P VCB/ Vacuum circuit breaker

VBDc/R-24P VCB/ Vacuum circuit breaker

1.Whole mechanism’s advantage
2.Circuit panel
3.Making/Breaking coil
4.Making module
5.Breaking buffer
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Product Details

Product characteristics:

1.Whole mechanism’s advantage

  Operating mechanism’s structure is simple, operation is reliable, it goes with strong commonality, can be used in different specifications.

2.Circuit panel

  The modularized secondary controlling circuit panel adopts auto-fastening connection-peg, which is convenient for replacing and also ensure the reliability of the electric connection.

3.Making/Breaking coil

  The coil is whole sealing designed, keeping the coil out of moisture.

  Superficial treatment: 80% mechanical parts apply Ni-P alloy treatment, greatly improved spare parts' antiseptic power, assure machine's stable quality all the time.

4.Making module 

  Brief structure and reliable operating principle, thoroughly avoid some faults, such as can't keep making, can't break and so on, meanwhile, reduce release power

5.Breaking buffer

  High powered breaking buffer will reduce moving-contact overswing or rebounding extent when circuit breaker is in process of breaking, thus reduced the rate of re-arcing when breaking, assured the vacuum interrupter bellows’ mechanical endurance.



Main technical specification of VBDc/R-24P


Name

Unit

Data

1

Rated voltage

kV

24

2

Rated frequency

Hz

50/60

3

1 min power frequency withstand voltage

kV

65

4

Rated lightning impulse withstand voltage

kV

125

5

Rated current

A

630

1250

1600

6

Rated short circuit breaking current

Rated thermal stable current (effective value)

kA

16

25

25

25


31.5

31.5

7

Rated short circuit making current (peak)

Rated dynamic stable current (peak)

kA

40

50

50

50


80

80

8

Breaking times of rated short circuit breaking current

times

30

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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