A Disconnector Switch, also known as an Isolator Switch, is a mechanical switch designed to fully isolate an electrical circuit from its power source. It is primarily used in power distribution and transmission systems to ensure maintenance safety by providing a visible break in the circuit.
| Feature | Details |
|---|---|
| Voltage Rating | Ranges from 3.3 kV to 765 kV for high-voltage systems |
| Current Rating | Available in capacities from 400A to 4000A or higher |
| Type | Horizontal, Vertical, Pantograph, and Centre Break designs |
| Operating Mechanism | Manual, motorized, or geared drive for remote operation |
| Insulation Medium | Air-insulated, gas-insulated (GIS), or vacuum-insulated options |
| Pole Configuration | Single-pole, double-pole, or triple-pole for versatile use |
| Interlocking System | Ensures safe switching with integrated locking mechanisms |
| Earthing Switch Option | Available for added grounding protection during maintenance |
| Compliance Standards | Meets IEC 62271, ANSI, and IS standards for performance and safety |
| Type | Centre Break Disconnector, Double Break Disconnector |
| Range | 72.5kV to 420kV |
| Rated Current | Upto 4000A |
| Lighting Impulse Withstand voltage 1.2/50ms (To earth- kVp) | 325 to 1425 kV |
| Lighting Impulse Withstand voltage 1.2/50ms (Across Isolating distance- kVp) | 375 to 1665 kV |
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