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, commonly referred to as an isolation disconnect switch, is meticulously engineered to function on high voltage power transmission and distribution lines of 10(12, 15, 24)kV. This robust switch excels at opening and closing single-phase or three-phase circuits while maintaining voltage presence, but without handling load, ensuring reliable operation.
Specially crafted for single-phase functionality within three-phase line systems, this switch stands out with its straightforward structure, affordability, and user-friendly operation. With rated currents available in 200, 400, 600, 800, 1000, and 1250 amps, these switches are composed of a sturdy base, resilient post insulators, conductive elements, and a mechanical section. A sophisticated gate knife design is employed for seamless circuit operation, where each phase features two conductive blades, enhanced by external compression springs for optimal contact pressure. Operation is facilitated with an insulated hook stick, complemented by a convenient self-locking mechanism.
Working Environment:
Altitude: Must not exceed 1000 meters;
Ambient Temperature: Maximum not above +40°C; Minimum not below -30°C;
Outdoor Wind Speed: Maximum not exceeding 35 meters/second;
Seismic Intensity: Must not exceed 8 degrees; Ensure installation sites are free from frequent severe vibrations.
Installation sites must be devoid of gases, chemical deposits, salt mist, dust, dirt, and any other explosive or corrosive substances that could compromise the switch's insulation and conductivity.
Note:
If the aforementioned normal usage conditions are surpassed, users are encouraged to engage in discussions with the company for tailored solutions.
Installation, Use and Adjustment
Pre-installation Work
Ensure to conduct an annual inspection of the following switch components:
Thoroughly clean dirt from conductive elements, contact surfaces, and insulating porcelain bottle surfaces to maintain efficiency.
Inspect all components diligently for any signs of damage, focusing especially on potential cracks or damages in the insulating porcelain bottle.
Verify that all contact surfaces of conductive components maintain excellent condition and integrity.
The main technical parameters |
Table I |
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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 |