Sewage pump motor overheating protection device and protection method

• Main Authors: WEI YONGLAN, WEN RUIHENG, GU LONGFEI, ZHANG ZONGSHENG, GUO SHUAI, BAI GUANGHUI, LI QIONGFENG, HE BINQUAN
• Format: Patent
• Language: Chinese; English
• Published: 16.08.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The invention provides a sewage pump motor overheating protection device and protection method. The sewage pump motor overheating protection device comprises a sewage pump, a liquid level meter and a data processing device. The sewage pump is in signal interlocking with the liquid level meter; an electric energy data acquisition module is arranged on a circuit of a motor of the sewage pump; the data processing device comprises a data analysis processing unit and a command execution unit connected with the data analysis processing unit; the data analysis processing unit is connected with the liquid level meter and the electric energy data acquisition module respectively; and the command execution unit is connected with a motor of the sewage pump. By means of the method, the problems that at present, due to liquid level detection faults, the submersible sewage pump does not stop running after sewage discharging is completed, the motor is overheated and even burnt, and potential safety hazards are increased can