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VS1-12 permanent magnetism indoor high voltage vacuum circui
Release time:2015-06-05 21:26 Read:Time


VS1-12 permanent magnetism indoor high voltage vacuum circuit breaker is the indoor high voltage switch equipment, which applicable to 12KV rated voltage, frequency 50 HZ in the three-phase power system to protect and control the operator. As a power grid equipment industrial , mining enterprises of power equipment protection and control unit. Being well applied to frequent operation of rated current or the place of many times the breaking short circuit current .
It uses the design of the operation mechanism and circuit breaker ontology unibody, It can be a fixed installation unit, It is equipped with special feed mechanism and form a handcart unit too.

●  Performance advantages

This type of products with distable permanent magnetic operating mechanism, organizations with a permanent magnet, provided by the permanent magnet retention, keeping a switch in close break-brake state, compared with the conventional spring operating mechanism ,Mechanical parts number Shorten the mechanical transmission chain, which makes switch greatly improve reliability and mechanical life dramatically increased.

●Model implication

●The data as follow:
No. Name Unit Date
1 Rated voltage KV 12
2 Rated frequency Hz 50
3 Rating insulation level Power frequency withstand voltage(1min) KA 24/48
to earth/ between phases
Lightning impulse withstand voltage (peak) 75/85
to earth/ between phases
4 Rated short circuit breaking current KA 20 25 31.5 40
5 Rated current KA 630 630 1250 1600 1250 1600
6 Rated tolerance current (Effective value) KA 1250 1250 2000 2500 2000 2500
7 Rated peak withstand current (peak) KA 20 25 31.5 40
8 Rated peak with stand current(peak)   50 63 80 100
50 63 80 100
9 Duration of rated short circuit current S 4
10 Mechanical life 次Times 20000
11 (1min)
Secondary back power frequency withstand voltage (1min)
V 2000
12 Rated operating sequence   Open-t-close&open-t1-close&open
Remarks:20KA、25KA、31.5KA t=0.3S t1=180s; 40KA t=180s t1=180s

Outline Mounting Dimension

Last one:VS1-12 Solid-closure High-voltage Vacuum Circuit Breaker
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