10kv 12kv outdoor high-voltage three-phase permanent magnet fast vacuum circuit breaker
Overview
AB-3S-12 series outdoor high-voltage three-phase permanent magnet vacuum cicuit breaker is a new generation
of the latest generation of the company's comprehensive domestic and foreign advanced technology,the strengths
of the public Inteligent vacuum circuit breaker.This product can be used as a switch for the 10kV side and
10kv outlet of the main transformer of the 35kV substation,and can also be used as a pole switch on the
distribution network.It can be easily controlled,protected,combined with various control units produced
by our company.Star survey and communication are the first choice equipment for realizing distribution
network automation and miniaturization.
Operating environmental conditions
◆Working environment temperature:no more than 40℃;daily average temperature does not exceed 35℃;minimum ambient air temperature is -25℃;
◆ Air relative humidity:daily average value is not greater than 95%,monthly average value is not greater than 90%;daily average value of water vapor pressure is not greater than 2.2kPa;monthly average value is not greater than 1.8kPa;
◆ Altitude:no more than 2000m;
◆The surrounding area is not obviously polluted by dust,smoke,corrosive and/or flammable gas,steam or salt spray;
◆Vibration or ground motion from outside of switchgear and control equipment can be ignored;
◆ The amplitude of induced electromagnetic interference in the secondary system does not exceed 1.6kV
The Main Technical Parameters
|
Project |
Unit |
Parameter |
|
|
Rated voltage |
kV |
12 |
|
|
Rated insulation level |
1min power frequency withstand voltage (effective value) |
kV |
42 |
|
Lightning impulse withstand voltage(peak value) |
kV |
75 |
|
|
Rated frequency |
Hz |
50 |
|
|
Rated current |
A |
630/1250 |
|
|
Rated short-circuit breaking current |
kA |
20 |
|
|
Rated short-circuit making current(peak value) |
kA |
50 |
|
|
Rated operating sequence |
|
Ot1(0.3s)-COt2(3s)-COt2(3s)-CO |
|
|
Thermally stable current(4S) |
kA |
20 |
|
|
Dynamic stable current(Bee value) |
kA |
50 |
|
|
Breaking times of rated short-circuit current |
Times |
30 |
|
