RSAD Up-to-24kV Eco-friendly RMU-PowerMatrix Tech, Inc.

Simple and reliable five-prevention interlocking structure

Between the circuit breaker and the three-position isolation mechanism is the five-prevention interlock,
a simple and reliable structure. It prevents operators from mis-operation.

Core component features

Circuit breaker mechanism Adopts precise transmission structure with reclosing function. It’s of accurate output angle, high output power and efficient transmission.

Isolation mechanism Adopts three-position mechanism with single spring and double operating shaft. The closing and opening positions are accurate with no overshoot. It can load the electric scheme.

Circuit breaker Adopts vacuum arc extinguishing technology. It’s of high insulation performance and great making or breaking ability. It can avoid insulation pollution when making and breaking.

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

Core component features

Circuit breaker mechanism Adopts precise transmission structure with reclosing function. It’s of accurate output angle, high output power and efficient transmission.

Isolation mechanism Adopts three-position mechanism with single spring and double operating shaft. The closing and opening positions are accurate with no overshoot. It can load the electric scheme.

Circuit breaker Adopts vacuum arc extinguishing technology. It’s of high insulation performance and great making or breaking ability. It can avoid insulation pollution when making and breaking.

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

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Component details

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

Circuit breaker The integrated injection molding insulation cylinder is of large climbing distance and high insulation strength. Its aluminum-alloy shielding structure is of uniform electric field.

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.

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.

Closing and opening structure Vacuum interrupters and operating mechanisms adopt cam-driven closing and opening structures, which helps to realize small closing bounce, stable over-travel, and high interchangeability.

Component details

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

Circuit breaker The integrated injection molding insulation cylinder is of large climbing distance and high insulation strength. Its aluminum-alloy shielding structure is of uniform electric field.

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.

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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Live interlocking device of earthing switch

If high-voltage incoming wires are live or the operating handle is pulled out, it can immediately realize automatic locking.
Over-temperature protection function is built in the device, so it keeps the device safe and reliable. In case of emergency, it can realize mechanical unlocking.

Ratings & Specifications Operating Environment Product Solutions External Dimensions

Parameter	V-module
Rated voltage	12 kV
Power frequency withstand voltage	42/48 kV
Impulse withstand voltage	75/85 kV
Rated current	630 A
Rated short circuit breaking current	20 kA
Rated short circuit making current	50 kA
Rated short time withstand current	20/4 kA/s
Mechanical life	Circuit breaker 10000 times / Isolating 5000 times / earthing 5000 times

RSAD up to 24kV dry air insulated switchgear shall comply with IEC62271-100, IEC62271-102, IEC62271-103, IEC62271-200, IEC62271-1, GB/T11022-1999, GB3906-2006, GB1985-2004, 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 standardGB/T12706.4、IEC60502、NF-EN-50181

Altitude≤ 2000m (under standard inflation pressure)

Gas pressureLower than 20 ℃, 1.2bar (absolute pressure)

Annual leakage rate0.25‰ / year

Immersion test0.3 bar pressure underwater 24h

Protection degreeTank IP67
Enclosure IP4X

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陈育鑫 Ezzat 臧文明刘福财 James Zhu 闫涛谈宏波陈跃欣张正辰王晓杰雒园王博博

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