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GW9-12 Series Outdoor High Voltage Disconnector 24 40.5
This series of outdoor high-voltage disconnect switches are 50Hz single-phase AC high-voltage switching equipment designed for use in electrical systems with a rated voltage of 10-35kV for switching on or isolating the power supply when no-load voltage is present.
Description
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Product Description
This series of outdoor high-voltage disconnect switches are 50Hz single-phase AC high-voltage switching equipment designed for use in electrical systems with a rated voltage of 10-35kV for switching on or isolating the power supply when no-load voltage is present.
This disconnector is operated using an insulating rod.
Operating conditions
◆ The altitude above sea level does not exceed 1000 meters.
◆ Ambient temperature: upper limit +40°C, lower limit -30°C for normal areas, -40°C for cold climate areas.
◆ Wind pressure does not exceed 700 Pa (which corresponds to a wind speed of 34 m/s).
◆ Seismic intensity does not exceed 8 points.
◆ Places without frequent intense vibrations.
At the place of installation of the version for normal conditions there should be no gases, vapors, chemical deposits, salt fog, dust and other explosive and aggressive substances that significantly affect the insulation and current-carrying ability of the disconnector. The dirt-resistant version is suitable for areas with heavy pollution, but should not contain substances that cause fire or explosion.
| Name | Unit change | Meaning | |||||||
| Rated voltage | kV | 10 | 15 | 35 | |||||
| Maximum operating voltage | kV | 12 | 17.5 | 40.5 | |||||
| Nominal insulation level | Nominal insulation level | Relative to earth | kV | 42 | 55 | 95 | |||
| Breaking gap | kV | 48 | 65 | 118 | |||||
| Lightning impulse test voltage (peak) | Relative to earth | kV | 75 | 105 | 185 | ||||
| Breaking gap | kV | 85 | 120 | 215 | |||||
| Rated frequency | Hz | 50 | |||||||
| Rated current | A | 200 | 400 | 630 | 1250 | 630 | 1250 | ||
| Thermal current (4 s) | kA | 6.3 | 12.5 | 20 | 31.5 | 20 | 31.5 | ||
| Rated peak current withstand current | kA | 16 | 31.5 | 50 | 80 | 50 | 80 | ||
| Mechanical wear resistance | cycles | 3000 | 3000 | 3000 | |||||
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