Cooper RVAC Ring Main Unit Electrical Switchgear Distributors

1. Mode: Coope ring main unit
2. Voltage: 12kV
3. Custom switchgears can be provided.

Product Details

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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