Product Overview

AB-3S-12 series outdoor high-voltage three-phase permanent magnet vacuum circuit breakers can be used as switches on the 10kV side and 10kV outgoing lines of 35kV substation main transformer, and can also be used as post switches of distribution network. Combined with various control units produced by our company, control, protection, star measurement and communication can be conveniently realized. It is the preferred equipment to realize distribution network automation and miniaturization.

Product Features

The use of magnetic actuation (permanent magnet) mechanism, so that a large number of components to reduce the closing power is greatly reduced, stable and reliable, without regular maintenance;

The use of imported outdoor epoxy resin as the outer insulation material, light weight, life of more than 15 years, good weather resistance, no oil, no SF6, in line with environmental requirements;

The action time is short, can quickly cut off the fault, the protection is convenient and flexible;

● Select solar cells or CT as the power supply, without external power supply to achieve electric operation;

● Select a special remote control can realize remote control operation, without the lever can stop power transmission operation;

● Selection of integrated design of high-voltage isolation switch, compact structure, installation and maintenance is very convenient;

● Stainless steel box, maintenance-free.

Main technical parameters of products

Serial Number

Name

Unit

Parameters

1

Rated voltage

kV

12

2

Rated insulation level

1min power frequency withstand voltage (effective value)

kV

42

Lightning impulse withstand voltage (peak)

kV

75

3

Rated frequency

Hz

50

4

Rated current

A

630-1250

5

Rated short-circuit breaking current

kA

20

6

Rated short-circuit closing current (peak)

kA

50

7

Thermal stability current (4S)

kA

20

8

Dynamic stability current (peak value)

kA

50

9

Rated breaking current times

Times

30

10

CT transformation ratio

30-125/1（5）

11

Operating supply voltage

V

-220(-110)

12

Creepage specific distance

 

≥ 31

13

Mechanical Times

Times

10000