| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Single-column Disconnector |
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In electrical engineering, a disconnector, disconnect switch or isolator switch is used to ensure that an electrical circuit is completely de-energized for service or maintenance. They are only used for breaking the circuit and are often found in electrical distribution and substation, where machinery must have its source of driving power removed for adjustment or repair. Disconnectors can be manual or motor operated and may be paired with an earthing switch to ground the portion that has been isolated from the system for ensuring the safety of equipment and the personnel working on it.High-voltage isolation switches are used in electrical substations to allow isolation of apparatus such as circuit breakers, transformers, and transmission lines, for maintenance. The disconnector is usually not intended for normal control of the circuit, but only for safety isolation. Unlike load switches and circuit breakers, disconnectors lack a mechanism for suppression of electric arcs, which occurs when conductors carrying high currents are electrically interrupted. Thus, they are off-load devices, with very low breaking capacity, intended to be opened only after the current has been interrupted by some other control device.
1. The altitude does not exceed 1000m.| Electrical characteristics | Specification | |
| Rated voltage of Disconnector | 12 | 36 |
| Rated current | 630 | |
| Rated frequency | 50 | |
| Lighting Impulse withstand voltage | 95 | 170 |
| Power frequency withstand voltage in 1 min (Dry) | 42 | 70 |
| Power frequency withstand voltage in 10 s (Wet) | 36 | 60 |
| Rated short circuit withstand current | 20 | |
| Rated short circuit withstand time | 3 | |
| Rated peak withstand current | 50 | |
| Creepage | 25 | 20 |
| Blade stopped degree in opening position | 160 | |
| Spare parts | ||
| Mounting bracket | with/without | |
| Terminal clamp | with/without | |
| Loadbuster Hook | with/without | |
| Self locking Mechanism | with | |
| Material | ||
| Terminal pads | Brass/Copper plated by silver | |
| Blade | Copper plated by siliver | |
| Insulator | Porcelain / Polymer | |
| Channel Base | Steel hot galvanized | |
| Operating eye | Steel hot galvanized | |
| Package | ||
| Qty/package | 1 | |
| Service conditions | ||
| Environment maximum temperature | 40 | |
| Pollution level | Heavy | |
| Altitude | ≤1000 | |
| Standard | IEC 62271-102:2001 | |
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