Brand | ROCKWILL |
Model NO. | 126KV 252KV 363KV 420KV 800KV series disconnector |
Rated voltage | 550KV |
Rated normal current | 3150A |
Series | GW |
Description
GW17 series disconnector adopts double-column horizontal telescopic structure, mainly composed of base, insulator, conductive system, operating mechanism, etc. The disconnector is operated by CJ11 type motor operating mechanism for opening and closing. The attached ground switch is mainly composed of ground switch system and operating mechanism, and each group of ground switches is operated by a CJ11 motor operating mechanism for opening and closing.
Main Features
Strong product flow capacity, long mechanical life.
The transmission shaft of the product is made of high quality alloy steel, the outer surface is treated with hot dip galvanizing, and the anti-corrosion ability is strong; The shaft sleeve is made of high-strength engineering plastic, which has good wear resistance and strong anti-corrosion property.
The product adopts a fully sealed structure between the moving contact base and the contact finger, effectively avoiding the intrusion of rain, snow and frost, and has strong waterproof ability.
The contact surface of the product adopts advanced silver plating technology, and the hardness of the silver layer reaches 140HV, which enhances the electrical conductivity and wear resistance of the surface.
Technical parameter
Specifications |
Unit |
Value |
|||||||
Model |
GW17/17B-126 |
GW17B-252 |
GW17A-363 |
GW17B-420 |
GW17B-550 |
GW17A-550 |
GW17-800 |
||
Rated voltage |
kV |
126 |
252 |
363 |
420 |
550 |
550 |
800 |
|
Rated current |
A |
2500/3150 |
3150/5000 |
3150/5000 |
3150 |
3150/4000 |
3150/4000 |
5000 |
|
Rated frequency |
HZ |
50 |
50 |
50/60 |
50 |
50 |
50 |
50 |
|
1min power frequency withstand voltage (r.m.s) |
Phase to phase/ to earth |
kV |
230 |
460 |
510 |
520 |
740 |
740 |
960 |
Across isolating distance |
kV |
230(+73) |
460(+146) |
510(+210) |
610 |
740(+315) |
740(+315) |
960(+460) |
|
Lightning impulse withstand voltage (peak 1.2/50us) |
Phase to phase/ to earth |
kV |
550 |
1050 |
1175 |
1425 |
1675 |
1675 |
2100 |
Across isolating distance |
kV |
550(+103) |
1050(+206) |
1175(+295) |
1425(+240) |
1675(+450) |
1675(+450) |
2100(+650) |
|
Rated operating impulse withstand voltage(peak 250/2500μs) |
Phase to phase/to earth |
kV |
\ |
\ |
950 |
1050 |
1300 |
1300 |
\ |
Across isolating distance |
kV |
\ |
\ |
850(+295) |
900(+345) |
1175(+450) |
1175(+450) |
\ |
|
Rated short-time withstand current (r.m.s) |
kA |
40 |
50/63 |
50/63 |
50 |
50/63 |
50/63 |
63 |
|
Rated peak withstand time |
kA |
100 |
135/160 |
125/160 |
130 |
125/160 |
125/160 |
170 |
|
Rated short-circuit withstand time |
S |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
|
Wiring terminal static mechanical load |
Longitudinal |
N |
1250 |
1500 |
1500 |
2000 |
2000 |
2000 |
4000 |
Horizontal |
750 |
1000 |
1000 |
660 |
1500 |
1500 |
3000 |
||
Vertical |
1000 |
1250 |
1500 |
1500 |
1500 |
1500 |
2000 |
||
Operational altitude |
m |
≤2000 |
≤2000 |
≤1000 |
≤1000 |
≤1000 |
≤1000 |
≤2000 |
|
Operating pollution class |
Class |
AG5 |
AG5 |
AG3 |
AG5 |
AG3 |
AG3 |
AG3 |
|
Mechanical life |
Times |
5K |
10K |
2K |
10K |
10K/6K |
10K |
10K |
|
Radio interference level |
uV |
≤500 |
≤500 |
≤500 |
≤500 |
≤500 |
≤500 |
≤500 |
|
bus-transfer current switching by disconnector |
bus-transfer current |
A |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
bus-transfer voltage |
V |
100 |
300 |
300 |
300 |
400 |
400 |
400 |
|
disconnector switch capacitive open current |
A |
1 |
1 |
2 |
1 |
2 |
2 |
2 |
|
disconnector switch inductive open current |
A |
0.5 |
0.5 |
1 |
0.5 |
1 |
1 |
1 |
|
The switching induced current capacity of the earthing switch |
Electromagnetic induction current |
A |
50/80 |
80/160 |
80/400 |
80 |
80 |
80/400 |
80 |
Electromagnetic induction voltage |
kV |
0.5/2 |
1.4/15 |
2/35 |
2 |
2 |
35 |
2 |
|
Electrostatic induction current |
A |
0.4/2 |
1.25/10 |
2/50 |
1.25 |
2 |
50 |
3 |
|
Electrostatic induction voltage |
kV |
3/6 |
5/15 |
8/50 |
5 |
8 |
50 |
12 |