Pump water supply is motor start -up overlength protection circuit for system

The utility model discloses a pump water supply is motor start -up overlength protection circuit for system, including motor auto transformer voltage -reduction starting circuit, motor auto transformer voltage -reduction starting circuit includes implementation?of?circuit and control circuit, the utility model discloses first relay, second relay, third relay, an auxiliary relay, the 2nd auxiliary relay and a time relay in the copy control circuit carries out water pump motor's normal?boot, uses in the cooperation through the 2nd time relay, and when the water pump circuit broke down, the timely dynamo power supply that breaks effectively protected water pump motor, improved motor life. 本实用新型公开了种水泵供水系统用电机启动过长保护电路，包括电机自耦变压器降压启动电路，电机自耦变压器降压启动电路包括执行电路和控制电路，本实用新型利用控制电路中的第继电器、第二继电器、第三继电器、第中间继电器、第二中间继电器和第时间继电器进行水泵电机的正常启动，在通过第二时间继电器的配合使用，当水泵电路出现故障时，及时的断掉电机电源，有效保护水泵电机，提高电机使用寿命。