Customization: | Available |
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Type: | 10kv/12kv/15kv |
Structure: | According to Customer Requirements |
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The (H)GWBEB type outdoor high-voltage isolation switch, also known as an isolation disconnect switch, is meticulously engineered to operate on 10(12, 15, 24)kV high voltage power transmission and distribution lines. It facilitates the seamless opening and closing of single-phase or three-phase circuits while maintaining voltage presence but without load.
This switch is designed for single-phase applications within three-phase line systems, lauded for its straightforward design, economic feasibility, and user-friendly operation. It offers a variety of rated currents: 200, 400, 600, 800, 1000, and 1250 amps. The switch is composed of a robust base, durable post insulators, efficient conductive parts, and a mechanical section. Utilizing a gate knife structure for circuit operations, each phase's gate knife integrates two conductive blades, enhanced by external compression springs on each side. The height of these springs can be adjusted to achieve the optimal contact pressure for the gate knife. Operation is executed with an insulated hook stick for precise opening and closing, and a self-locking device ensures steadfast performance.
Working Environment:
The installation site's altitude should not exceed 1000 meters;
Ambient temperature should range from a maximum of +40°C to a minimum of -30°C;
Outdoor wind speed should remain under 35 meters/second;
Seismic intensity should be no more than 8 degrees, and the installation site should remain free from frequent severe vibrations.
The site must be devoid of gases, chemical deposits, salt mist, dust, dirt, or other explosive or corrosive substances that could adversely affect the switch's insulation and conductivity.
Note:
IF THE ABOVE NORMAL CONDITIONS ARE EXCEEDED, USERS CAN NEGOTIATE WITH THE COMPANY TO EXPLORE CUSTOM SOLUTIONS.
Installation, Use and Adjustment
Pre-installation work
Conduct annual inspections to ensure the switch's performance and longevity:
Remove accumulated dirt from conductive parts, contact surfaces, and the insulating porcelain bottle's surface to maintain efficacy.
Inspect all components for potential damage, with a focus on the insulating porcelain bottle for cracks or impairments.
Ensure the contact surface of the conductive part is in optimal condition to guarantee reliable operation.
The main technical parameters |
Table I |
|||||||||
Model |
Rated voltage |
Rated current |
kA |
10 seconds thermal stable current |
||||||
peak |
Valid values |
|||||||||
(H)GW
|
10 |
200 |
5 |
9 |
5 |
|||||
400 |
21 |
15 |
10 |
|||||||
600 |
35 |
25 |
14 |
|||||||
630 |
35 |
25 |
14 |
|||||||
800 |
35 |
25 |
14 |
|||||||
1000 |
50 |
35 |
20 |
|||||||
Contact force parameters |
Table II |
|||||||||
Model |
Rated current(A) |
contact pressure(kgf) |
||||||||
(H)GW |
5 |
9 |
||||||||
21 |
15 |
|||||||||
35 |
25 |
|||||||||
35 |
25 |
|||||||||
35 |
25 |
|||||||||
50 |
35 |