Pole-mounted Circuit Breaker

Negotiable
China
National (Xuchang) Power Electronics System Industrial Park, Yangguang Avenue, Weidu District, Xuchang City, Henan Province
0374-3216642
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Product Introduction

The outdoor pole-mounted high-voltage AC vacuum circuit breaker is a voltage 12kV, three-phase AC 50Hz outdoor high-voltage switchgear, mainly used for opening and closing load currents, overload currents, and short-circuit currents in power systems. It is suitable for protection and control in substations and industrial and mining enterprise distribution systems, more suitable for places requiring frequent operations, particularly for urban and rural grid transformation needs; it can also serve as a sectional switch in the grid to achieve distribution network automation.

Product Parameters

No.

Indicator Item

Unit

Parameters

1

Rated voltage

kV

12

2

Rated frequency

Hz

50

3

Rated current

A

630

4

Rated short-circuit breaking current

kA

20

5

Rated power frequency 1min withstand voltage

Relative ground/interphase

kV

42

6

Interfracture

kV

48

7

Rated lightning impulse withstand voltage (1.2/50s) peak

Relative ground/interphase

kV

75

8

Interfracture

kV

85

9

Rated short-time withstand current

kA/s

20 April

10

Rated peak withstand current

kV

50

11

Rated short-circuit closing current

kV

50

12

Mechanical stability

Times

≥ 10000

13

Minimum creepage distance of external insulation

mm

372

14

Rated short-circuit breaking current breaking times

Times

≥ 30 times

15

Mechanical life

Times

10000

16

Rated operating voltage

V

DC24