380V 50Hz 3000A HD/HS Series Knife Switch Central handle isolation Low Voltage Products
380V 50Hz 3000A HD/HS Series Knife Switch Central Handle Isolation Low Voltage Products
Application
HD knife switch and knife-shaped transfer switch (hereinafter referred to as the switch) is applicable for the complete set of distribution unit with the AC frequency of 50Hz, rated current up to 380V and the rated current up to 3000A, to turn on and off the AC and DC circuit in an infrequent manner or serve as isolation switch
Central handle switch is mainly used in the power station to serve as an isolation switch. It will not cut off the live circuit.
Side front lever operating mechanism switches for front operation, front switchgear maintenance, operating mechanism cabinet mounted on both sides
Central front lever operating mechanism switch is mainly used for switchgear cabinet of frontal maintenance from behind, and the operating mechanism is installed dead ahead.
Switch with a side handle is mainly used in power box.
Switch with an interrupter switch can cut off proper current load, while other series of knife switches can only serve as isolation switch.
| Conventional thermal current 100 200 | 400 600 | 1000 1500 2000 3000 | |||||||
| Rated operating current | 100 | 200 | 400 | 600 | 1000 | 1500 | 2000 | 3000 | |
| Breaking capacity | AC 380V,cosθ=0.72~0.8 | 100 | 200 | 400 | 600 | 1000 | 1500 | ||
| DC T=0.01~0.011S 220V | 100 | 200 | 400 | 600 | 1000 | 1500 | |||
| Mechanical life (times) | 10000 | 10000 | 10000 | 5000 | 5000 | 5000 | 3000 | 3000 | |
| Electrical life (times) | 1000 | 1000 | 1000 | 500 | 500 | 500 | 300 | 300 | |
| 1S short time withstand current | 6 | 10 | 20 | 25 | 30 | 40 | 50 | 50 | |
| Peak withstand current | Operating mechanism type | 20 | 30 | 40 | 50 | 60 | 80 | 100 | 100 |
| Handle | 15 | 20 | 30 | 40 | 50 | ||||
| Operating force | 300 | 300 | W400 | W400 | W400 | W400 | W400 | W400 | |
Normal operating conditions
Ambient temperature: -5°C~+40°C
Altitude: ≤2000m;
When the ambient air temperature is +40°C, the relative humidity of the air shall not be higher than 50%; a higher relative humidity is allowed at a lower temperature; for example, for the wettest month, the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month +20°C, and special measures shall be taken for the condensation occasionally produced due to temperature change.
Pollution degree: 3
The ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.
Baikong electric was born and developed well Sichuan Baikong Electrical Technology Co., Ltd is a complete set of high and low voltage power distribution equipment automation equipment, set production, research and development and sales Import and export services and other integrated enterprises, the company is headquartered in Pengzhou Industrial Park, Chengdu City.The company's main products are box-type substation Medium and high voltage power transmission and distribution equipment, low voltage power distribution equipment, fire electrical equipment, intelligent industrial electrical equipment, new energy and energy storage electrical equipment, metering and protection power distribution equipment, high and low voltage complete switchgear, high voltage ring network cabinet, cable branch box,SF6 inflatable cabinet, etc.
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