(H)GWBEB type outdoor high-voltage isolation switch, commonly referred to as an isolation disconnect switch, is meticulously engineered for seamless operation on 10(12, 15, 24)kV high voltage power transmission and distribution lines. It excels in opening and closing single-phase or three-phase circuits, even with voltage present but without load, ensuring uninterrupted performance.

This switch is specifically crafted for single-phase applications within three-phase line systems. It stands out with its straightforward design, remarkable cost-efficiency, and user-friendly operation. The switch is available in a range of rated currents: 200, 400, 600, 800, 1000, and 1250 amps, tailored to meet diverse needs. It comprises a robust base, durable post insulators, conductive elements, and a mechanical section designed for precision and reliability. The innovative gate knife structure facilitates efficient circuit opening and closing. Each phase's gate knife features dual conductive blades, enhanced by external compression springs on both sides. By adjusting the spring height, optimal contact pressure is achieved for superior performance. The switch operation is simplified with an insulated hook stick for effortless opening and closing actions, complemented by a dependable self-locking mechanism.

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; ensure the installation site maintains stability and is free from frequent severe vibrations.

The installation site must remain free from gases, chemical deposits, salt mist, dust, dirt, and any explosive or corrosive mediums that could severely impact 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

1. Remove dust and dirt from all components, and meticulously wipe the surface of the insulating porcelain bottle to ensure a pristine setup.
2. Thoroughly scrub the wiring surface of the ground screw, ensuring optimal connectivity.
3. Apply a protective layer of industrial Vaseline to the rotating parts and contact areas to enhance longevity and performance.
4. Inspect the contact surface meticulously and adjust the height of the compression spring to align with the standards outlined in Table II, ensuring optimal contact pressure.
5. This switch is exclusively designed for hoisting use, perfectly complementing the transformer in line operations.
6. The rated current of this switch spans from 200-400 ampere hours, utilizing generally three mounting holes, while 600-1000A applications also employ three mounting holes for secure installation.

Conduct an annual meticulous check of the following switch components:
Eliminate all dirt from conductive parts, contact surfaces, and the surface of insulating porcelain bottles to maintain optimal performance.

Inspect all components for any damage, with a particular focus on examining insulating porcelain bottles for potential damage and cracks.

Scrutinize the contact surface of the conductive part to ensure it maintains optimal condition and performance.