TGXR6-12KV SF6 Ring Main Unit
TGXR6-12KV SF6 Ring Main Unit
TGXR6-12KV SF6 Ring Main Unit
TGXR6-12KV SF6 Ring Main Unit
TGXR6-12KV SF6 Ring Main Unit
TGXR6-12KV SF6 Ring Main Unit

TGXR6-12KV SF6 Ring Main Unit

TGXR6-12 series SF6 fully insulated and fully sealed metal-enclosed ring network switchgear (SF6 fully insulated ring main unit) is a gas-insulated medium-voltage switchgear with threephase AC 50Hz and rated voltage of 12kV. All live parts and switches are enclosed in a stainless-steel housing without any influence from the external environmental conditions for high reliability, safety and maintenance free.
TENGEN SF6 fully insulated ring main unit complies with IEC 62271, IEC 60420, GB/T 3906, and GB/T 11022 standards.

TGXR6-12KV SF6 Ring Main Unit

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TGXR6-12KV SF6 Ring Main Unit Technical Parameters


Name Unit Load switch unitCombined   apparatus unitCircuit breaker   unit
Rated   voltage kV 12
Rated   freq. Hz 50
Rated   current 630≤125 630/1250
Rated insulation levelPower   frequency withstand voltage(phase-to-phase or phase to ground)kV42
Power frequency withstand voltage(between open   contacts) 48
Power frequency withstand voltage(control and   auxiliary circuits) 2
Lightning impulse withstand   voltage(phase-to-phase or phase to ground)95
Lightning impulse withstand voltage(between   open contacts) 110
Rated short-time withstand currentMain   circuit (4s/2s)kA20/25 — 20/25
Grounding circuit(2s) 
17.4/21.7 — 17.4/21.7
Rated peak withstand currentMain   circuitkA50/63 — 50/63
Grounding circuit 43.5/54.3 — 43.5/54.3
Rated   short-circuit breaking current kA — 31.520/25
Rated   short-circuit making current kA 50/63 8050/63
Rated   transfer current — 1600
Mechanical lifeLoad   switch / circuit breaker Times 5000500010000
Isolating switch / grounding switch Times 300030003000
Rated pressure of SF6 gas(relative value at 20)Rated   charge pressureMPa0.035
Min. functional charge pressure 0.02
Protection gradeCabinet   body 
IP4X
Gas box 
IP67
Annual   relative leakage rate of gas %/Y ≤0.05




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Zhejiang Tengen Electric Co., Ltd.

Sulv Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China, 325699

+86 21 3119 8727

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