161 kV 2000 A 50 kA G.I.L

161 kV 2000 A 50 kA G.I.L

Introduction:

 

Gas-insulated transmission lines(GIL) is applied in the tunnel buried and elevated lines. Actually erection of technology is used commonly pipeline. It can be completed in the shortest time of construction.The sealed structure can prevent circuit to external environment factors. GIL is high transmission capacity and lowcapacitance character. It can be directly
connected to an overhead power line system.The transmission loss is much smaller than conventional cables or overhead lines. The company equipment voltage level is 69-345 kV.

 

161kV 2000A 50kA GIL Main technical data:

 
1
Rated Voltage
kVrms
161
2
Rated maximum Voltage
kVrms
169
3
Rated frequency
Hz
60
4
Rated Current
Arms
2000
5
Rated short-circuit breaking current
kArms
50
6
Rated short time withstand current(3s)
kArms
50
7
Rated power-frequency withstand Voltage
kVrms
365
8
Rated Lightning impulse withstand Voltage
kVpeak
750
9
Rated Switching impulse withstand Voltage
kVpeak
Note
10
Rated breaking time
cycle
N/A
11
Rated delay trip time
second
N/A
12
Standard duty cycle for breaker
-
N/A
13
Operation duty cycle for breaker
-
N/A
14
Rated pressure(20℃)
kgf/cm．G
5
15
SF6leakage rate
% / year
0.5
16
Control Voltage
DC(V)
N/A
17
Operation mechanism for breaker
-
N/A

161 kV GIL Layout

161 kV GIL Structure diagram

 

List Contract number Amount Date Location
1 008-950150085 2 97/03 Zhongke subststion
2 008-950150051A 2 97/03 Renwu subststion
3 A6549407001 1 97/04 Changfa subststion
4 008-950150051A 2 97/04 Zhuling subststion
5 008-960160007A 1 97/04 Shangchen subststion
6 008-960160007A 1 97/04 Wenxin subststion
7 008-960160007B 1 97/05 Changping subststion
8 008-95150051B 1 97/10 Fenghua subststion
9 008-95150051B 1 97/10 Fenghua subststion
10 008-95150051B 2 97/12 Xiandu subststion
11 K6349500002 2 98/01 Houli subststion
12 008-950150085 2 98/09 Zhugong subststion

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