(H) GW9A-12 outdoor high-voltage single-pole disconnector (hereinafter referred to as disconnector) is a three-phase AC 50Hz high-voltage power distribution device with the rated voltage 12kV, suitable for 10kV power supply system for cutting off and closing the high-voltage line with voltage under nonload and for electrical isolation of the electrical devices under repair such as high-voltage bus and circuit breaker from the live high voltage line. It is also used to turn on/off a very small capacitive current and inductive current.
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Working environment conditions:
1.1 Ambient air temperature: Max. temperature is +45℃,Min. temperature is -40℃, and the max. daily temperature difference up to 25K.
1.2 Relative humidity: The daily mean is not greater than 95%, and the monthly mean is not greater than 90%.
1.3 Altitude: Not exceed 3000 m.
1.4 Wind speed: Not exceed 35 m/s.
1.5 Pollution degree: 4 .
1.6 Icing thickness: 10 mm.
1.7 Seismic intensity should not exceed 8 magnitude scales.
1.8 There is no frequent violent vibration at the installation site.
1.9 There is no obvious pollutions such as dust, smoke, corrosive gas, or salt spray in the ambient air. Please contact the manufacturer if the product works out of the normal working condition range.
| No. | Name | Unit | Value | |
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated insulation level | Power frequency withstand voltage | Phase to phase, phase to earth 42, open contacts 49 | |
| (1min) | ||||
| Rated lightning impulse withstand voltage (peak) | Phase to phase, phase to earth 75, open contacts 85 | |||
| 3 | Rated frequency | Hz | 50 | |
| 4 | Rated current | A | 630, 1250 | |
| 5 | Rated short-time withstand current | kA | 20, 25 | |
| 6 | Rated peak withstand current | 50, 63 | ||
| 7 | Rated short-time duration | s | 4 | |
| 8 | Mechanical life | Times | 3,000 | |
| 9 | Rated closed loop breaking current | A | 630 | |
Zhejiang Tengen Electric Co., Ltd.
Sulv Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China, 325699
+86 21 3119 8727
marketing@tengen.com.cn
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