Machine power cooling tower fan speed reducer a soft start control system

• Main Authors: He Jianqi, Li Xiliang, Zhao Guofeng, Wang Mingxiang, Jiang Guozhang
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2016
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The utility model discloses a machine power cooling tower fan speed reducer a soft start control system, including soft starter, this soft starter's L1, L2, L3 terminal are connected to the power, and soft starter's T1, T2, T3 terminal are connected with the cooling tower fan motor, and the cooling tower fan motor adopts double star triangle -shaped voltage -reduction starting mode, bypass contactor and soft starter are parallelly connected mutually, and bypass contactor's closure is controlled by PLC, soft starter's L1, L2, L3 terminal still are connected with lubricated oil pump motor, and soft starter's L3 terminal still is connected with AC220V control circuit, DC24V control circuit, heater and ventilation blower respectively. The utility model discloses a machine power cooling tower fan speed reducer a soft start control system can utilize soft starter adjustment cooling tower fan motor starting voltage and activation time according to the actual motion operating mode to reach the reduction to the purpos