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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.

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.

Model