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 referred to as an isolation disconnect switch, is a masterful creation tailored for deployment on 10(12, 15, 24)kV high voltage power transmission and distribution lines. It adeptly facilitates the opening and closing of single-phase or three-phase circuits while maintaining voltage presence, though not under load.
Engineered with precision, this switch is crafted for single-phase application in three-phase line systems, boasting a design that emphasizes simplicity, cost-efficiency, and user-friendliness. With an array of available rated currents—200, 400, 600, 800, 1000, and 1250 amps—these switches comprise a robust base, reliable post insulators, essential conductive parts, and a dynamic mechanical section. The innovative gate knife structure ensures seamless circuit operations, where each phase's gate knife features two conductive blades complemented by external compression springs on both sides. By adjusting the spring height, optimal contact pressure for the switch's gate knife is realized. The operation is effortlessly conducted with an insulated hook stick, enhanced by a self-locking device for added security.
Working Environment:
Positioned below altitudes of 1000 meters;
Surrounding temperature: peaking at +40°C; plunging to no less than -30°C;
Withstanding outdoor wind speeds up to 35 meters/second;
Designed for seismic intensity not surpassing 8 degrees; the chosen installation site should remain free from frequent severe vibrations.
The installation site must be devoid of gases, chemical deposits, salt mist, dust, dirt, or any explosive or corrosive substances that could severely impair the switch's insulation and conductivity.
Note:
IF THE NORMAL USAGE CONDITIONS ARE EXCEEDED, DISCUSSIONS WITH THE COMPANY ARE WELCOMED TO FIND CUSTOM SOLUTIONS.
Installation, Use and Adjustment
Pre-installation Tasks
Annually perform the following checks to maintain optimal performance:
Thoroughly clean dirt from conductive parts, contact surfaces, and the surface of insulating porcelain bottles.
Inspect all components for any damage, with particular attention to ensuring the insulating porcelain bottle remains free of damage and cracks.
Verify the integrity of the conductive part's contact surface for optimal 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 |