1.1 Suitable for three-phase AC 50Hz, 24kV power system for switching various loads of different
environments, and for occasions with frequent operations.
1.2 For the protection and control of electrical equipment used in industrial and mining, enterprises, power plants and substations, especially for metallurgy, chemicals, and coal industries.
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Certificate
Working environment conditions:
1.1 Ambient temperature: -15℃~+40℃ (storage and transport at -30℃ are allowed).
1.2 Environment humidity: Daily mean relative humidity ≤95%; monthly mean relative humidity ≤90%; daily mean vapor pressure ≤ 2.2kPa; monthly mean vapor pressure ≤ 1.8kPa;
1.3 Altitude: ≤1,000 meters.
1.4 Seismic intensity does not exceed 8 degrees.
1.5 There is no obvious pollutions such as dust, smoke, corrosive gas, flammable gas, steam gas, or salt spray in the ambient air.
1.6 The magnitude of the electromagnetic interference induced in the secondary system does not exceed 1.6kV. Note: Please contact the manufacturer if out of the normal working conditions.
| Rated voltage | kV | 24 | |||
| Rated power frequency withstand voltage (1 minute) | 65 | ||||
| Rated lighting impulse withstand voltage (peak) | 125 | ||||
| Rated frequency | Hz | 50 | |||
| Rated current | A | 630 | 630 1250 1600 | 1250 1600 2000 2500 3150 | |
| 1250 | 2000 2500 3150 | ||||
| Rated short-circuit breaking current | kA | 20、25 | 31.5 | 40 | |
| Rated short-circuit making current | 50、63 | 80 | 100 | ||
| (peak) | |||||
| Rated short-time withstand current | 20、25 | 31.5 | 40 | ||
| Rated peak withstand current | 50、63 | 80 | 100 | ||
| Rated short-circuit duration | s | 4 | |||
| Rated operation sequence | O-0.3s-CO-180s-CO | O-180s-CO-180s-CO | |||
| Rated short-circuit breaking current ON/OFF times | Times | 50 | 30 | ||
| Mechanical life | 10,000/customized | ||||
| Rated operating voltage | V | 220/110 | |||
| Allowable cumulative wear thickness of moving and fixed contacts | mm | 3 | |||
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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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