The TRM-C is a compact unit combining all MV functional units to enable connection, supply and protection of transformers on an open ring or radial network. The switchgear and busbars are enclosed in a gas-tight chamber, filled with SF6 and sealed for life. The TRM-C can be adapted to meet all the secondary distribution network needs, up to 24kV. The TRM-C concept offers a choice of either a switch fuse combination or circuit breaker with relay for protection of the transformer. GRM can be supplied with an integrated remote control and monitoring unit.
It meets the following international standards:
IEC 60694, IEC 60265, IEC 62271, IEC 60529
National standards:
GB 3906-2006, GB 3804-2004
-Stainless steel tank, IP67 protection degree
-It is insensitive to the environment
-Conforms to national and international standards
-ISO 9001 certification for design and production
-Safety of people
-Environmental friendly
-Gas recovery at the end of life is possible
-ISO 14001 approved production site
-Recycling is confirmed at a 97% level
Normal operating conditions:
TRM-C meets international standards IEC 60694. It can work under normal operating conditions for indoor switchgear.
Ambient temperature:
class -25 indoors
Lower than or equal to +40℃,
Lower than or equal to +35℃ on average over 24 hours,
Higher than or equal to -25℃.
Altitude:
Less than or equal to 1000m,
Above 1000m, and up to 3000m, with directed field connections.
SF6 Gas pressure:
0.3 bar gauge pressure at 20℃
Leakage Rate per year:
0.25‰
Complete insulation:
IP67: immersion for 30 minutes, IEC 60529
Cable connection standard
DIN 47636 T1&T2 / EDF HN 525-61
Busbars:
main busbars in switchgear 400mm2 Cu
Earthing busbars 160mm2 Cu
Thickness of Stainless steel tank:
3.0mm
TRM-C GIS Gas Insulated Switchgear
For more details pls contact our engineer.
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