Cooper RVAC RMU - - PRODUCTS - Shaanxi XD HI-TECH Medium-low Voltage Apparatus Co., Ltd

Ø SF6 air box is made of stainless steel plate and antirust paint coated to keep durable and beautiful appearance, and it is not affected by salt, moisture, contamination and temperature.

Ø Equipped with COOPER prefabricated shielded touchable cable accessories, hot plug is allowed, it can operate under water or other harsh conditions.

Ø Fully sealed, Fully Insulated, Maintenance-free.

Ø All the high-voltage energized parts are sealed in main cabinet which can’t be reached.

Ø Zero pressure of SF6 air box can withstand up to 32KV pressure (1min), it has large insulation margin.

Ø Personal safety:Reliable pressure relief channel, arc-fault resistance, passed 20KA inner-arcing type test.

Ø Three switch positions achieve natural interlock. Switch position indications are clear and reliable, equipped with powered indication.

Ø Modular Design, Configuration Flexibility.

Ø We can adopt multi units in one box, or separation type of free combination of various modules, to meet different customer needs.

Ø Unit module can be extended flexibly in field. MV substation can be constructed easily according to different requirements. Two options are provided for the transformer and line protection: combined electrical appliance (load switch, fuse) and circuit breaker with relay protection function.

II. Technical Parameters

Items		Unit	Load switch	Fuse combination	Vacuum circuit breaker
Rated voltage		kV	12	12	12
Rated current		A	630	125*	630
Power frequency withstand voltage (1min)	Interphase, to ground, between breaks	kV	42	42	42
Power frequency withstand voltage (1min)	Interphase, to ground, between breaks	kV	48	48	48
Lightning impulse withstand voltage (BIL)	Interphase, to ground, between breaks	kV	75	75	75
Lightning impulse withstand voltage (BIL)	Interphase, to ground, between breaks	kV	85	85	85
Zero indication (1min) power frequency withstand voltage		kV	32	32	32
Secondary loop power frequency withstand voltage (1min)		V	2000	2000	2000
Rated load breaking current		A	630	630	630
Rated charging breaking current		A	10	10	25
Rated short circuit breaking current		kA	\	31.5*	20
Rated transfer breaking current		A	\	1700	\
Rated short circuit closed current (peak)		kA/time	50/5	\	50
Grounding switch closed current (peak)		kA/time	50/2	\	50/2
Rated short-time withstand current		kA/s	20/4	20/4	20/3
Rated peak withstand current		kA	50	50	50
Mechanical life		time	5000	5000	10000
SF6 air rated pressure (20℃)		MPa	0.03	0.03	0.03
SF6 air annul leakage rate		％	<0.05	<0.05	<0.05

RVAC is E-3 class load switch, which meets not only GB3804, GB1984, GB3906, DL/T593 and other related GB standards, but also American ANSIC37.72 standard.

Note: Item marked with * means that the data depends on high-voltage fuse.