Combining with advanced technology both at home and abroad, we developed TRM-K series sf6 totally enclosed ring main unit switchgear (hereinafter referred to as switchgear). K series switchgear can be divided into two types: fixed type and unit-combination extendable type. With perfect corrosion resistant enclosure and sealing, it can be used in various places. It is compact, reliable and safe. It is an intelligent switchgear that combines industrial automatic technology. It is widely used in 3-24kv power distribution network, such as indoor/outdoor switch station, box-type transformer substation, residence district, business center, buildings.
International standard:
IEC60376 IEC60129 IEC60298 IEC60265-1
IEC60420 IEC60694 IEC60282 IEC60056
DINVDE0670 (German standard)
National standard:
GB11022 GB3906 GB1984 GB3804
GB16926
-SF6 gas pressure：under 20℃ １.４bar（absolute pressure）
-SF6 gas annual leakage rate:1‰
-Water immersion test: apply 0.3 bar pressure under water /24 hours
-Arc test: with arc extinguisher 20KA/1S, without arc extinguisher
16KA/1S
-Free of maintenance for 30 years
-It is not affected by environment: anti-condensation、anti-frost、antisalt
mist、anti-filthy、anti-corrosion、UV-resistance、and chemicals
resistance. It can be used in poor environment.
-ALL the high voltage electric parts and elements are sealed in a gas tank
filled with low pressure SF6 gas. It is compact, small, light and all
insulated.
-Modular design, different modules can be combined to realize various
main connections. Combination mode can be changed upon request.
-Silicon rubber connectors are applied. High voltage parts can be
connected and the switchgear can be extended.
-Incoming cable and outgoing cable are fully shielded.
-Circuit breaker cubicle can be equipped.
-High voltage monitoring unit and integrated digital relay can be
equipped.
-High voltage metering cubicle can be equipped.
-Over-current relay protection unit can be added.
-Distribution network automatic upgrade is available.
TRM-K ground plot
For more details pls contact our engineer.
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