VS1(ZN63A)-12 Indoor AC High Voltage Vacuum Circuit Breaker

NINGBO TIANAN (GROUP) CO., LTD.

The structure of vacuum arc-extinguish room

Vacuum arc-extinguish room is the core parts from circuit breaker to support, connect and break current energy. It has sufficient arc-extinguish function and high operation duration.

• Insulation enclosure (1) of arc-extinguish room is made up of high intensity alumina ceramics material, both ends shall be welded stainless steel cover (6) and it will be formed into sealed cavity.
• Inner layer of arc-extinguish room is metal shied cover(5) which metal moist caused by arc can be compounded or condensed on the metal shied cover in short time during terminal making & breaking, insulation media intensity of inner arc-extinguish room will be recover. Meantime, shied cover can protect ceramics enclosure from hurt of metal splashing.
• Retracted stainless steel accordion pipe (4) is the important part of arc-extinguish room that moving terminal (3) can move in the fully-closed arc-extinguish room. Sealing function and long duration of accordion pipe is one of the main factors which decided the mechanical duration of vacuum arc-extinguish room.
• Terminal is the heart of vacuum arc-extinguish room, adopt chromium-copper, advanced smelt technology can ensure the breaking function and electric duration of vacuum circuit breaker, and decrease the operation over-voltage level.

The main parameter of 24KV circuit breaker

Overview

The circuit breaker is identified by some national standards and international relative standards, such as GB1984,GB/T11022,DL/T403 and IEC62271, etc. It has reliable lockage, used as truck department or fixed installation department.

VT19-24indoor HV vacuum circuit breaker is used in the mining company ,power factory and substation,which is widely used in the rated current or multiple breaking short circuit current.