RSF Up-to-17.5kV SF6 Insulated RMU-PowerMatrix Tech, Inc.

Core component features

Fuse The triangle-layout fuses are fully-sealed and convenient to change. The tripping is easy and quick.

Fuse switchgear mechanism adopts three-position mechanisms of automatic charging and quick tripping. It can realize quick tripping function of the fuse and the electromagnet.

Load switch The load switch adopts the three-position design and moving contacts + arc extinguishing grates to ensure good insulation and breaking performance.

Load switch mechanism The load switch mechanism adopts a three-position design with single spring and double operating shafts, which ensures no overshoot in closing and opening. It can load electric schemes.

Circuit breaker mechanism The circuit breaker mechanism is a precise transmission mechanism with reclosing function. It’s of accurate output angle, great output power and high transmission efficiency.

Isolation mechanism The isolation mechanism adopts a three-position design with single spring and double operating shafts, which ensures no overshoot in closing and opening. It can load electric schemes.

Circuit breaker The circuit breaker adopts vacuum arc extinguishing technology. It’s of good insulation performance and excellent breaking capacity, which can avoid insulation pollution when breaking.

Disconnector To avoid mis-operation, the disconnector adopts three-position design, with the earthing switch of peak short circuit making current 63kA.

Core component features

Fuse The triangle-layout fuses are fully-sealed and convenient to change. The tripping is easy and quick.

Fuse switchgear mechanism adopts three-position mechanisms of automatic charging and quick tripping. It can realize quick tripping function of the fuse and the electromagnet.

Load switch The load switch adopts the three-position design and moving contacts + arc extinguishing grates to ensure good insulation and breaking performance.

Disconnector To avoid mis-operation, the disconnector adopts three-position design, with the earthing switch of peak short circuit making current 63kA.

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Component details

Side plate of circuit breaker SMC molded insulation side plate is of precise dimension and high insulation strength. It can ensure the whole strength with reliable fastening devices.

Closing and opening structure Vacuum interrupters and mechanisms adopt cam-driven transmission, which helps to realize stable over-travel, small closing bounce. Interchangeability of mechanisms and switches among cabinets is high.

Disconnector The front- and rear- metal precision stamping plates are of high strength and light weight.The integrated main shaft ensures the switch is of small bounce and high synchronism.

Operation mechanism The whole transmission system adopts rolling bearing schemes, with flexible rotation and high transmission efficiency. The surface finish adopts zinc-nickel alloy.

The isolated moving and static contacts The isolated moving and static contacts adopt cold forging technique. They are of high hardness and good current carry capacity. The positions of contacts adopt shielding structure with good insulation performance.

Earthing static contact T-type static contacts adopt cold heading technique, with high hardness, good current carry capacity, and excellent performance in short time withstand and grounding closing

零部件细节

Side plate of circuit breaker SMC molded insulation side plate is of precise dimension and high insulation strength. It can ensure the whole strength with reliable fastening devices.

Disconnector The front- and rear- metal precision stamping plates are of high strength and light weight.The integrated main shaft ensures the switch is of small bounce and high synchronism.

Operation mechanism The whole transmission system adopts rolling bearing schemes, with flexible rotation and high transmission efficiency. The surface finish adopts zinc-nickel alloy.

Earthing static contact T-type static contacts adopt cold heading technique, with high hardness, good current carry capacity, and excellent performance in short time withstand and grounding closing

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Ratings & Specifications Operating Environment Product Solutions External Dimensions

Parameters	C-module		F-module		V-module
Rated voltage	12 kV	24 kV	12 kV	24 kV	12 kV	24 kV
Power frequency withstand voltage	42/48 kV	65/79 kV	42/48 kV	65/79 kV	42/48 kV	65/79 kV
Impulse withstand voltage	75/85 kV	125/145 kV	75/85 kV	125/145 kV	75/85 kV	125/145 kV
Rated current	630 A	630 A	125 A	125 A	630 A	630 A
Rated short circuit breaking current			31.5 kA	31.5 kA	20/25 kA	20 kA
Rated short circuit making current	50/63 kA	50 kA	80 kA	80 kA	50/63 kA	50 kA
Rated short time withstand current	20/4 (25/4) kA/s	20/4 kA/s			20/4 (25/4) kA/s	20/4 kA/s
Rated transfer current			1500(1750 Note[1])	1200
Mechanical life	Load 5000 times / earthing 5000 times		Load 5000 times / earthing 5000 times		Circuit breaker 10000 times / Isolating 5000 times / earthing 5000 times

Note: 1) Please consult our company for special parameters.

RSF-12/24 series inflated switchgear shall comply with IEC62271-100, IEC62271-102, IEC62271-103, IEC62271-200, IEC62271-105, IEC62271-1, GB/T11022-1999, GB3906-2006, GB1985-2004, GB16926, GB3804-2004, GB1984-2003, GB3309-89 and other standards.

Item Parameter

Ambient temperatureMaximum temperature +75℃；
Maximum temperature (24h average) +35℃；
Minimum temperature -45℃；

HumidityMaximum average relative humidity (24 hours ≤ 95%; monthly ≤ 90%)

IACAFLR 20kA 1s

Service continuity categoryLSC 2A

Cable bushing standardDIN47636T and T2/EDF HN 525-61

Altitude≤ 2000m (under standard inflation pressure)

SF6 gas pressureLower than 20℃, 1.4bar (absolute pressure)

Annual leakage rate0.25‰/year

Immersion test0.3 bar pressure underwater 24h

Protection degreeSF6 tank IP67
Fuse cartridge IP67
Enclosure IP4X

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