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SF6 fully insulated RMU GRM

Secondary distribution products--SF6 fully insulated RMU GRM



30 years maintenance-free

Free from environmental impact,anti condensation,frost,salt fog,

filthy,corrosion,UV, chemicals and other small animals and can be used in harsh environments.

All highvoltage live parts and components are all sealed in lowpressure chamber filled with SF6 gas

compact, miniaturized, lighter, fully insulated,Modular design, different modular combinations 

to achieve the main connection, combinations can be changed according to users requirements

forming circuit switching system.

Using silicone connector for installing high-voltage parts and any extension of cubicle,

fully shielded cable incoming and outgoing;

Circuit breaker unit operating mechanism contains a pre-storage operating mechanism.




            GRM           

C - module

F - module

Vc - module                           (spring mechanism)

Vc - module                        (magnetic actuators)

Switch disconnector

Switch-fuse disconnector

Vacuum circuit-breaker

Earthing switch/ disconnector

Vacuum circuit-breaker

Earthing switch/ disconnector

Rated voltage kV

12/24

12/24

12/24

12/24

12/24

12/24

Power frequency withstand voltage kV

42/50

42/50

42/50

42/50

42/50

42/50

Lightning impulse withstand voltage kV

95/125

95/125

75/125

75/125

75/125

75/125

Rated current A

630 / 630

See1)

630 / 630

630 / 630

Breaking capacities

off load cable charging A

10/10

Earth fault A

200/150

Earth fault cable charging

115/87

Short-circuit breaking current kA

See 2)

20/16

20 /16

Making capacity kA

50/40

See 2)

50/40

50/40

50/40

50/40

Short time current 3 KA

20/16

20/16

20/16

Number of mechanical operations

5000 / 2000

5000 / 2000

10000 / 10000

5000 / 2000

50000 / 30000

5000 / 2000


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 Address:  No. 82, Siming Industrial Park, Meixi Road, Xiamen, 361100, P. R. China