High Voltage Isolating Switch Load Classification

High Voltage Disconnect Switch Classification based on load speed regulation characteristics (load torque-speed)
Fan load (or quadratic load) Constant torque load Constant power load Applicable to inverter
Based on the ease of starting the load
Standard load (10-level standard application) Heavy load (20-level heavy load application) Applicable to soft starter
No-load start Light load start
Common load torque characteristics: load torque-speed relationship
Constant torque load
Potential, the direction is always constant and has nothing to do with the direction of movement, such as the lifting of heavy objects Function relationship: TL=f(n)=C Resistance, the direction is always opposite to the direction of movement, such as conveyor belt Function relationship: TL=f(n)=± C
Potential constant torque Resistance constant torque
Fan load
Torque is proportional to the square of the speed Function relationship: TL=f(n)= T0+kn2 Typical load: centrifugal pump, fan
Fan load
Constant power load
Constant power load