GW27 252KV 363KV 800KV 1100KV series disconnector
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| Brand | ROCKWILL |
| Model NO. | GW27 252KV 363KV 800KV 1100KV series disconnector |
| Rated voltage | 800KV |
| Rated normal current | 5000A |
| Series | GW |
Description
GW27 series disconnector adopts three or five column horizontal rotation structure, can be equipped with ground switch. 252kV disconnector adopts CJ11 electric mechanism three-phase mechanical linkage operation. 363kV, 800kV, 1100kV disconnector adopts CJ11 electric mechanism single-pole operation, and can achieve three-pole electrical linkage.
Main Features
Simple structure, compact, small footprint.
Strong product flow capacity, long mechanical life.
The main knife adopts flipping structure and has self-cleaning ability.
Seismic level reached AG5 level.
The layout is flexible, convenient for users to choose.
Technical parameter
Specifications |
Unit |
Value |
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Model |
GW27-252 |
GW27-363 |
GW27-800 |
GW27-1100 |
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Rated voltage |
kV |
252 |
363 |
800 |
1100 |
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Rated current |
A |
3150/5000 |
3150/5000 |
5000 |
6300 |
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Rated frequency |
HZ |
50 |
50 |
50 |
50 |
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1min power frequency withstand voltage (r.m.s) |
Phase to phase/ to earth |
kV |
460 |
510 |
960 |
1100 |
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Across isolating distance |
kV |
460(+145) |
460(+145) |
510(+210) |
960(+460) |
1100(+635) |
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Lightning impulse withstand voltage (peak 1.2/50us） |
Phase to phase/ to earth |
kV |
1050 |
1175 |
2100 |
2550 |
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Across isolating distance |
kV |
1050(+200) |
1050(+206) |
1175(+295) |
2100(+650) |
2400(+900) |
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Rated operating impulse withstand voltage（peak 250/2500μs） |
Phase to phase/to earth |
kV |
\ |
950 |
1550 |
1800 |
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Across isolating distance |
kV |
\ |
850(+295) |
1300(+650) |
1675(+900) |
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Rated short-time withstand current (r.m.s) |
kA |
50 |
63 |
50 |
63 |
63 |
63 |
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Rated peak withstand time |
kA |
125 |
160 |
125 |
160 |
170 |
170 |
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Rated short-circuit withstand time |
S |
3 |
3 |
3 |
3 |
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Wiring terminal static mechanical load |
Longitudinal |
N |
1500 |
2000 |
4000 |
5000 |
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Horizontal |
1000 |
1500 |
3000 |
4000 |
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Vertical |
1250 |
1500 |
2000 |
5000 |
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Operational altitude |
m |
≤2000 |
≤2000 |
≤2000 |
≤1000 |
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Operating pollution class |
Class |
AG5 |
AG5 |
AG4 |
AG3 |
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Mechanical life |
Times |
5K/10K |
5K |
3K |
5K |
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Radio interference level |
uV |
≤500 |
≤500 |
≤500 |
≤500 |
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bus-transfer current switching by disconnector |
bus-transfer current |
A |
1600 |
1600 |
1600 |
1600 |
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bus-transfer voltage |
V |
300 |
300 |
400 |
400 |
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disconnector switch capacitive open current |
A |
1 |
1 |
2 |
\ |
|||||
disconnector switch inductive open current |
A |
0.5 |
0.5 |
1 |
\ |
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The switching induced current capacity of the earthing switch |
Electromagnetic induction current |
A |
80/160 |
80/400 |
80/200 |
400/400 |
\ |
|||
Electromagnetic induction voltage |
kV |
1.4/15 |
2/35 |
2/22 |
25/35 |
\ |
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Electrostatic induction current |
A |
1.25/10 |
2/50 |
1.25/18 |
50/100 |
\ |
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Electrostatic induction voltage |
kV |
5/15 |
8/50 |
5/22 |
50/100 |
\ |
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