GW9 Outdoor High-Voltage Isolating Switch

Ceho is a manufacturer and supplier specializing in supplying GW9 Outdoor High-Voltage Isolating Switch. The GW9 series switches are suitable for outdoor high-voltage electrical equipment with three-phase AC 50Hz rated voltages of 0kV/15kV/20kV. They are used for electrical isolation of high-voltage transmission lines during no-load transfer, high-voltage busbar maintenance, circuit breakers, and other electrical equipment, as well as for electrical isolation of live high-voltage lines. Our product can be divided into small capacitor and inductive current isolation circuits. Its structure is simple and reasonable, using copper-aluminum accessories, a stainless steel sealed housing, and a hot-dip galvanized base, providing excellent pressure resistance and corrosion resistance, and reliable performance. Lightweight and easy to install, requiring no regular cleaning or maintenance, it is suitable for various sections and branches of 10-20kV distribution lines in urban and rural areas, as well as maintenance sections with clearly visible disconnect points. Inexpensive, GW9 Outdoor High-Voltage Isolating Switch is a convenient outdoor high-voltage electrical device.

Our factory

(H)GW9-12 series outdoor high-voltage AC single-phase disconnector/isolation switch (hereinafter referred to as "disconnector/isolation switch") are used for switching 10kV lines under voltage and no load, and for electrical isolation of overhauled high-voltage buses, circuit breakers and other electrical equipment from live high-voltage lines.

Disconnectors/Isolation Switch conforms with the technical standards of GB/T 1985-2014 voltage and current isolation switches and earthing switches, DL/T 486-2010 High Voltage AC isolation switches and earthing switches.

MODEL AND MEANING

Environmental Conditions for Use

1. Altitude: Not exceeding 1000 meters. If the altitude is higher than 1000 meters, the rated thermal insulation level should be adjusted accordingly.

2. Ambient Temperature: Upper limit +45℃, lower limit -40℃, average temperature of the hottest month 30℃, maximum daily temperature difference 25K.

3. Solar Radiation Intensity (Outdoor): 0.1W/cm²

4. Wind Speed/Wind Pressure (Outdoor): 0.5 m/s / 700Pa

5. Pollution Degree: Class E

6. Icing Thickness: Not exceeding 20mm

7. Humidity: Daily average relative humidity not exceeding 95%, monthly average relative humidity not exceeding 80%

8. Seismic Performance: Horizontal acceleration 0.3m/2, vertical acceleration 0.15m/s²

9. Safety Factor: Sine resonance three-period wave, safety factor greater than 1.67.

OUTLINE AND INSTALLATION DIMENSION

Technical Data

Key Advantages

1. Significantly improved product structure and corrosion resistance. When closed, the conductive plate has a self-locking function. To open, simply pull the locking hook to automatically unlock. The base is equipped with a conductive spring and spring cover; the self-locking device includes a locking plate, locking hook, and locking hook spring. All standard parts are made of SUS304 non-magnetic stainless steel with a bright finish and excellent corrosion resistance.

2. The conductive plate has no stop lock; the maximum rotation opening angle is not less than 160 degrees, and the conductive plate base has no stainless steel clips. Passivation, riveting, and high-elasticity installation processes are used to maintain contact clamping force.

3. The main circuit components of GW9 Outdoor High-Voltage Isolating Switch use T2 red copper. The stationary contacts and terminals are integrally molded, completely solving the contact problems caused by welding of stationary contacts and terminals in the past.

4. All conductive components in the main circuit are silver-plated with a thickness of no less than 20mm and undergo a sealed anti-oxidation treatment. The surface plating is bright and durable, possessing strong oxidation resistance, excellent conductivity, and a circuit resistance of 80mmΩ.

5. The wiring terminals adopt a double-hole structure, made of hard copper alloy, with an outer silver plating.

6. This switch uses an external pressure contact spring, with the conductive contacts making contact with the "fixed arc" structure, providing highly uniform pressure and self-cleaning function. The contact pressure remains constant over a long period, ensuring the safety and reliability of the product during long-distance operation.

7. The insulator is made of high-strength ceramic or silicone rubber composite material and is designed with a large creepage distance, meeting Class E anti-pollution requirements, and possessing good anti-pollution capabilities and long-distance operation characteristics.

8. The minimum distance from the moving parts of GW9 Outdoor High-Voltage Isolating Switch to the ground is greater than 200mm, and the distance between breaks is greater than 230mm, making it suitable for high-altitude areas.