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Substation Gas Circuit Breakers Substation Vacuum Circuit Breakers / AC Circuit Breaker

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Proposed Price

$3000.00 - $7000.00/Unit/Units | 1  Unit/Units (Minimum Order Quantity)

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Product Details

General:
Our outdoor AC vacuum circuit breaker is 12kV distribution equipment of 3 phase,50Hz. It is used to connection and break load current, over-load current and short-circuit current. It is applicable in occasions with frequent operation and automatic power distribution network. It adopts vacuum arc-extinguish mode and SF6 gas insulation. The cabinet employs gas seal, explosion proof and insulation structure technologies. It has excellent integral seal performance. The spring operating mechanism adopt mini design. Action reliability is higher than the traditional spring operating mechanism. It accords with the standards of IEC62271-100.


Technical specification

No.

Item

Unit

Data

1

Rated frequency

Hz

50

2

Rated voltage

kV

12

3

Rated current

A

630

1250

4

Rated short-time power frequency withstand voltage

Interphase, to earth(wet)

kV/min

34/1

Interphase, to earth(dry)

42/1

Break(dry)

48/1

Secondary circuit to earth

2/1

5

Rated lightning impulse withstand voltage

Interphase, to earth

kV

75

Break

85

6

Rated short-circuit breaking current(virtual value)

kA

20

25

7

Rated short-circuit making current(peak)

50

63

8

Rated short-time withstand current and duration

kA/s

20/4

25/4

9

Rated peak withstand current

kA

50

63

10

Rated short-circuit breaking current breaking times

Times

30(E2)

11

SF6 gas rated gage pressure

MPa

0

12

Main circuit resistance

μΩ

≤120

13

Rated operating voltage and rated voltage of auxiliary circuit

V

AC/DC220,DC48,DC24

14

Machanical life

Times

10000(M2)

Note: If altitude over than 1000m, the rated insulation level should be modify as appropriate.