Cooper RVAC Ring Main Unit Electrical Switchgear Distributors

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Description

Product Detail

Cooper RVAC Ring Main unit Cabinet

1. Structural Characteristics

All-weather, strong adaptability to environment

l Pass water-immersion test under 12kV power in 24 hours, protection level is IP68, reliably withstand summer flooding.

l SF6 gas box is made of stainless steel plate and the surface is painted with antirust paint to prevent the influence of salt water, moisture, contamination and temperature so that it can keep durable and beautiful appearance.

l Equipped with COOPER prefabricated shielded touchable cable accessories, it can be plugged and unplugged with power and it can operate underwater or other harsh conditions for a long time.

Fully sealed, fully insulated, maintenance-free

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

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

Load switch cabinet (k unit/k1 unit)

Load switch cabinet

Load switch fuse combination cabinet (T unit)

Load switch fuse combination cabinet

CB cabinet (V unit)

CB cabinet

Metering cabinet (M unit)/PT cabinet (PT unit)

Metering cabinet

2. Main 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 48	42 48	42 48
Lightning impulse withstand voltage (BlL)	Interphase, to-ground, between breaks	kV	75 85	75 85	75 85
Zero indication (1min) power frequency withstand voltage		kV	32	32	32
Secondary circuit power frequency withstand voltage (1min)		V	2000	2000	2000
Rated load breaking current		A	630	630	630
Rated cable 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/	50/5		50
Grounding switch closed current (twice)		kA/	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 service life			5,000	5,000	10,000
SF6 gas rated pressure (20?)		MPa	0.03	0.03	0.03
SF6 gas annual leakage rate		%	<0.05	<0.05	<0.05

Note:

RVAC is E3-class load switch, which meets not only GB3804, GB1984, GB3906, DL/T593 and other related GB standards, but also American ANSIC37.72 standard.

* It depends on the high-voltage fuse.

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Shaanxi XD HI-TECH Medium-Low Voltage Apparatus Co.,Ltd

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