Customization: | Available |
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Type: | 10kv/12kv/15kv |
Structure: | According to Customer Requirements |
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(H)GWBEB type outdoor high-voltage isolation switch, also known as an isolation disconnect switch, is expertly crafted for deployment on 10(12, 15, 24)kV high voltage power transmission and distribution lines. It is specifically engineered to effectively open and close single-phase or three-phase circuits without load while under voltage.
This switch is designed for single-phase applications within three-phase line systems and is celebrated for its straightforward design, cost-efficiency, and user-friendliness. It is available in various rated currents including 200, 400, 600, 800, 1000, and 1250 amps, ensuring adaptability to diverse needs. The construction comprises a robust base, durable post insulators, efficient conductive parts, and a mechanical section. Employing a gate knife structure for precise opening and closing of circuits, each phase's gate knife includes two conductive blades, complemented by external compression springs on either side. The height of these springs can be adjusted to achieve the required contact pressure. Operation is facilitated by an insulated hook stick for seamless opening and closing, and it boasts a self-locking mechanism for added safety.
Working Environment:
Altitude not exceeding 1000 meters;
Ambient temperature: maximum not above +40°C; minimum not below -30°C;
Outdoor wind speed not exceeding 35 meters/second;
Seismic intensity not exceeding 8 degrees; the installation site should not experience frequent severe vibrations.
The installation site should remain free from gases, chemical deposits, salt mist, dust, dirt, or any explosive or corrosive substances that could significantly impair the switch's insulation and conductivity.
Note:
WHEN THE ABOVE NORMAL USE CONDITIONS ARE EXCEEDED, THE USER CAN NEGOTIATE WITH THE COMPANY.
Installation, Use and Adjustment
Pre-installation work
Conduct an annual inspection of the following switch components:
Eliminate dirt from conductive parts, contact surfaces, and the surface of insulating porcelain bottles to maintain efficiency.
Inspect all components for damage, with special attention to the insulating porcelain bottle for any damage or cracks.
Ensure the contact surface of the conductive part remains intact and functional.
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 |