ELG-12 type SF6 all-insulation inflatable ring main unit is a new-generation modular switchgear with small size.
It is provided with 6 unit modules in the same SF6 insulation gas cabinet. Each module has own function, capable of expanding at both sides and arranging at will according to different design plans, so as to achieve different configuration requirements.
It is free from environmental influence, condensation prevention, rime prevention, salt mist proof, dirt and corrosion resistance, UV-resistance, chemical substances prevention.Thus, can be used in poor environment;
All high voltage electric parts and switch elements are totally sealed in stainless steel gas tank filled with low-pressure SF6 gas, it has compact structure, achieving miniaturization, light weight and all insulation.
Modular design, various kinds of main wiring is achieved via different module combinations, and according to users demands, change the combination ways to form circuit switching system:
Silicone rubber connector is applied to achieve splicing of high voltage components and any extension of box body;
Full shield cable incoming and outgoing line;
Vacuum circuit breaker can be matched;
It is available to:
match with high voltage monitoring components and integrated digital relay;
match with high pressure measurement module;
add remote control and monitoring unit;
add over-current relay protection equipment;
It has strong flood control capacity, long service life, maintenance free and reduction of running cost;
Ambient temperature:max. to -35℃min. To +40℃.
Relative humidity:daily average ≤95%, monthly ≤90%
Altitude: < 2000m.
Seismic capacity: 8, horizontal acceleration ≤0.4g;Vertical acceleration ≤0.2g;
Should not be used in fire, explosion or strenuous vibration.
*Please consult with manufacture for special condition and requirements.
It complies with:
International standard：IEC60265 ，IEC60298 ，IEC60420 IEC60694 ，IEC60056 ，DIN47636
National standard：GB/T11022-1999 、GB3906-2006 GB3804-2004 、 GB16926-2009 GB/T11023-1999. GB1984-2003 GB1985-2004 、DL/T404-2007
|Item||Unit||C Module||F Module||V Module|
|Load switch||Combination appliance||Vacuum switch||Isolation / grounding switch|
|Power frequency withstand voltage||KV||42||42||42||42|
|Lightning impulse withstand voltage||KV||95||95||95||95|
|Closed loop breaking current||A||630|
|Cable charging breaking current||A||135|
|5% rated active load breaking current||A||31.5|
|Ground fault breaking current||A||200|
|Breaking current of cable charging during ground fault||A||115|
|Short circuit breaking current||KA||20/16|
|Short-time withstand current 2S||KA||25/-|
|Short-time withstand current 3S||KA||-/20||20/16||20/16|