72.5 kV LT G.C.B

72.5 kV LT G.C.B

Main technical data:

 
1
Rated Voltage
kVrms
72.5
2
Rated Voltage
Arms
4000
3
Rated frequency
Hz
50
4
Rated frequency
kArms
40
5
Rated withstand current
kApeak
108
6
Rated short time making current
kArms
108
7
Rated short time withstand current(4 s)
kArms
40/4
8
Rated power-frequency withstand Voltage
kVrms
160/200
9
Rated Lightning impulse withstand Voltage
kVpeak
350/350+60
10
Opening time
ms
< 30
11
Closing time
ms
< 100
12
Breaker time
ms
< 60
13
Rated operating sequence
-
O-0.3 s-CO-180 s-CO
14
Short-line fault breaking current(L75/L90)
kArms
30/36
15
Rated out-of-phase breaking current
kArms
10
16
Rated line-charging breaking current
Arms
10
17
Rated cable-charging breaking current
Arms
160
18
Rated cable-charging breaking current
MPa
0.5/0.4
19
First-pole-to-clear-factor
pu
1.5
20
Method operation
-
Spring
21
Type operation
-
Triple pole

額定電壓

72.5 kV

145 kV

局部尺寸

(mm)

(mm)

H1

1000

1400

H2

900

1400

H3

400

380

H4

1200

1200

H5

1600

1620

H

4150

5095

W1

1100

1700

W2

1100

1700

W3

600

600

W4

1100

1700

W

2630

3830

 

Llist Contract number Amount Date Location
1 - - - -
2 - - - -
3 - - - -