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11kV/33kV Metal Enclosed Outdoor SF6 Insulated RMU Ring Main Unit Panel

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No.
Item
Unit
C Module
(Load Break Switch)
V Module
(Circuit breaker)
1
Rated voltage
kV
12
24
36
12
24
36
2
Rated current
A
630(200A/F)
3
Rated frequency
Hz
50/60
4
1 min power frequency withstand voltage
kV
45
55
80
45
55
80
5
Lightning impulse withstand voltage
kV
75
125/150
170/
195
75
125/
150
170/
195
6
Rated trasnfer current
A
1700
1400
1200
/
7
Rated active load and close circuit breaking current
A
630
8
Rated cable charge breaking current
A
50/10
9
Rated short circuit breaking current
kA
/
20
16
16/20
10
Rated short circuit making current(peak)
kA
63
50
40/50
63
50
40/50
11
Short time(2s) withstand current, load switch/earth
kA
25/
20
20/
20
16/
20
25/
20
20/
20
16/
20
12
Rated withstand current(peak)
kA
63
50
40/50
63
50
40/50
13
Mechanism life
Times
3000
2000
10000
3000
5000
Note:for short circuit breaking and peak current is based on fuse plus combination of module.


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Ring Main Unit Metal Enclosed RMU 11kV/33kV RMU SF6 Insulated RMU

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