浅谈断路器温度监控与NTC温度传感器

Talking about circuit breaker temperature monitoring and NTC temperature sensor

Number of Views:18302022-05-10 09:03:34

With the development of the electrical industry, power distribution users are eager to automate the power station control system, digitize monitoring and communication, provide reliable power supply, and ensure safe equipment maintenance. If the fasteners are loosened, etc., if not detected and maintained in time, high temperature will be generated, which will cause the aging of the insulating parts and cause a fire or the circuit breaker to burn out. Therefore, the circuit breaker remote temperature monitoring device came into being.
What is a circuit breaker remote temperature monitoring device?
The circuit breaker remote temperature monitoring device is composed of an input module, a display module, a main controller module, a sensor detection module and an output monitoring module. The remote temperature monitor of the circuit breaker measures the ambient temperature through the NTC temperature sensor, obtains the temperature value through the I2C bus and A/D sampling, and then determines whether the temperature rise or temperature value exceeds the set value through calculation; if it exceeds, it will alarm and remotely through the relay. The control circuit breaker gives an alarm signal; the working status of the controller, the position and status of the circuit breaker, and the temperature value of each circuit are displayed on the panel; the controller can realize the information with the circuit breaker intelligent controller or integrated monitoring system through the RS485 communication unit Interoperability and operation.
It can be seen that the NTC temperature sensor plays an important role in the remote temperature monitoring device of the circuit breaker.

The NTC temperature sensor for circuit breakers uses a high-precision glass-sealed thermistor. The glass bulb of the glass-sealed thermistor and the stainless steel casing are directly joined together by sintering, and the inner cavity of the stainless steel casing is filled with high thermal conductivity epoxy resin. And the stainless steel shell adopts the shape of a wire lug. Wide operating temperature range (generally in the range of -50 to 200 ℃), it has high precision, high sensitivity, high reliability, and adopts double-layer sealing process, which has good insulation sealing and anti-mechanical impact, anti-bending ability, stable good sex characteristics.

Highly sensitive and reliable close-fitting NTC temperature sensor Talking about the temperature control of intelligent toilet