Large-capacity motors, such as those 

used in electric hoists, require specialized 

starting methods to avoid strain on the 

power grid and motor longevity issues. 

Direct starting is often impractical due 

to high starting currents that stress both 

the motor and power supply infrastructure. 

Hence, motors above 7.5 kW, including 

vehicle-mounted dust control fog cannon 

fans, typically employ reduced voltage 

starting methods.

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→Dust Suppression Water Cannon

Reduced voltage starting options include star-delta and 

frequency conversion methods, as well as soft start 

technologies. Star-delta starting is the most cost-

effective but requires specific motor configurations—a 

delta-connected motor is necessary, which can handle 

high kilowatt loads, while star-connected configurations 

are not suitable for initial startup.

→Fog Cannon Sprayer Machine