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Type: | 10kv/12kv/15kv |
Structure: | According to Customer Requirements |
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Introducing the (H)GWBEB type outdoor high-voltage isolation switch, a pinnacle of innovation in the realm of electrical engineering. This cutting-edge isolation disconnect switch is meticulously engineered for deployment on 10(12, 15, 24)kV high voltage power transmission and distribution lines. It excels in safely opening and closing single-phase or three-phase circuits without load, even while voltage is present, ensuring superior performance and reliability.
Crafted for precision, this switch is tailored for single-phase use within three-phase line systems, showcasing a straightforward, yet robust design that champions cost-efficiency and operational simplicity. Available in a range of rated currents: 200, 400, 600, 800, 1000, and 1250 amps, it is adaptable to various applications. The switch comprises an ingeniously designed base, durable post insulators, conductive components, and a sophisticated mechanical section. Featuring a unique gate knife mechanism for circuit-breaking capabilities, each phase's gate knife consists of two conductive blades, bolstered by external compression springs on either side. By adjusting the spring height, one can achieve optimal contact pressure for the gate knife function. An insulated hook stick facilitates user-friendly operation, and a self-locking device adds an extra layer of security.
Working Environment:
Designed for high altitudes, the switch operates flawlessly at elevations not exceeding 1000 meters;
Boasting resilience to extreme temperatures, it functions efficiently with a maximum ambient temperature of +40°C and a minimum of -30°C;
Engineered to withstand outdoor elements, it remains steadfast in wind speeds up to 35 meters/second;
Built to endure seismic activities, the switch is suitable for areas with seismic intensities up to 8 degrees; the installation site should be free from frequent severe vibrations.
For optimal performance, the installation site should be devoid of gases, chemical deposits, salt mist, dust, and dirt, as well as other explosive or corrosive mediums that could compromise the switch's insulation and conductivity.
Note:
IF CONDITIONS EXCEED THE NORMAL USE PARAMETERS LISTED ABOVE, WE STAND READY TO CONSULT WITH YOU TO ADDRESS YOUR SPECIFIC NEEDS.
Installation, Use and Adjustment
Pre-installation work
Commit to regular annual inspections of the following components:
Diligently remove any accumulated dirt from conductive parts, contact surfaces, and the surface of insulating porcelain bottles to maintain optimal performance.
Conduct a thorough inspection of all components for any signs of damage, paying particular attention to the insulating porcelain bottle for potential damage or cracks.
Ensure the contact surface of the conductive parts remains in excellent condition for 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 |