Motor space heater operation monitoring device

• Main Authors: XIE BAOHAN, BI ZUOBIN, CHEN XIAOCHUN
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2022
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION

The utility model relates to the technical field of motor power distribution, and discloses a motor space heater operation monitoring device, which comprises a main loop comprising a power supply, a circuit breaker, a contactor, a thermal relay and a motor space heater which are connected in series; the control loop I, the operating column and the contactor coil are connected in series, the normally open contact of the contactor is connected to two ends of one operating column contact in parallel, and the control loop I is connected with the main loop in series; the indicator light I and the indicator light II are connected in parallel, the indicator light I is connected with the normally open contact of the contactor in series, the indicator light II is connected with the normally open contact of the thermal relay in series, and the control loop II is connected with the main loop in series; the control loop III, the indicating lamp III and the contactor normally-closed contact are connected in series, and th