GW5 high-voltage isolating switch is an outdoor high-voltage electrical equipment with AC 50Hz. The rated voltage levels are 40.5KV, 72.5KV and 126KV. It is used for electrical isolation of high-voltage lines, and can also be used to open and close small capacitive or inductive currents.
Environmental conditions for use:
1. Altitude: no more than 3000m.
2. Ambient air temperature: the upper limit is 40°C, and the lower limit is -25°C.
3. The wind speed should not exceed 35m/s.
4. The seismic intensity does not exceed 8 degrees.
5. Pollution level does not exceed level II.
6. The thickness of ice coating is not more than 10mm.
7. The installation site should be free from explosives, explosive hazards, chemical corrosion and severe vibration.
Features:
The isolating switch adopts a double-column center-opening and contact-turning structure, which has the ability of self-cleaning contacts and improves contact reliability; the contact fingers are made of new materials with high strength, high conductivity and high elasticity. Relying on the elastic force of the contact finger itself to clamp the contact, avoiding the current vicious cycle of reduced contact clamping force, increased contact resistance, increased contact resistance, and aggravated contact heating caused by spring corrosion and heat annealing; the isolation switch rotates Some are designed according to maintenance-free requirements. The rotating seat is designed as a sealed structure, so that water vapor, dust, and harmful gases cannot enter, so that the bearing and molybdenum disulfide lithium-based grease will always work in a good environment, the bearing will never rust, the grease will never be lost, and it will never dry up. The operating torque of the isolating switch will not increase after long-term action. The stainless gold crankpin and oil-free self-lubricating bearings are used in combination; the steel parts are hot-dip galvanized to ensure that the isolating switch is flexible, light, reliable, and rust-free.
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