Discussion on the effect of circuit breaker in electric accompanying heat system

　　With the progress of science and technology and the development of industry, the electric accompanying heat system has been widely used in various fields. Whether it is petroleum, chemical, pharmaceutical or food processing industry, electric accompanying heat system plays a vital role. However, the safe operation of electric accompanying heat system can not be separated from the protection of circuit breaker. In this paper, the effect of circuit breaker and its importance in electric accompanying heat system will be discussed in depth, aiming to improve people's knowledge and attention to this key component.

　　First, the electric accompanying heat system overview

　　The electricity accompanies the heat system is a kind of uses the electric energy to transform into the heat energy, to the pipeline, the equipment or the other object to carry on the heating heat preservation device. It mainly consists of electric accompanying heat tape, power supply, controller and temperature sensor and so on. The electric accompanying heat tape produces heat through the electric current, transmits to the heated object, so as to achieve the purpose of heat preservation. The electric accompanying heat system has the characteristics of convenient installation, precise temperature control, energy saving and environmental protection, so it is widely used in industrial production.

　　Second, the basic principle of circuit breaker

　　Circuit breaker is a kind of equipment that can quickly cut off the circuit when the circuit is overloaded, short-circuited and other abnormal situations. Its precise action and reliable performance effectively prevent the occurrence of electrical accidents and protect the safety of equipment and personnel. The working principle of circuit breaker is by detecting the change of current in the circuit, when the current exceeds the set value, the circuit breaker will automatically trip and cut off the circuit, so as to realise the protection function.

　　Third, the circuit breaker in the electric accompanies the role of the heat system

　　Circuit breaker in the electric accompanying heat system plays a vital role, mainly reflected in the following aspects:

　　1. Protect the electric accompanying tropical

　　The electric accompanies the tropical in the working process will produce a large amount of heat, if there is a short circuit or overload and so on, will lead to the electric accompanies the tropical overheating, and even cause the fire. Circuit breaker can detect these abnormal situations in time, and quickly cut off the circuit to protect the electric accompanying heat from damage.

　　2. Protect power supply and controller

　　The power supply and controller of the electric trace heat system are the core parts of the whole system, once there is a failure, it will directly affect the normal operation of the system. Circuit breaker can effectively protect the power supply and controller, prevent the damage caused by overload or short circuit, and ensure the stable operation of the system.

　　3. Improve system safety

　　The use of circuit breaker greatly improves the safety of electric accompanying heat system. It can quickly cut off the power supply when the circuit is abnormal, prevent the occurrence of electrical accidents, and protect the safety of equipment and personnel. Especially in the flammable and explosive hazardous environment, the role of circuit breaker is especially important.

　　4.Extend system life

　　Through the circuit breaker's protection, the electric accompanying heat system's various parts can work in a safe and stable environment, reduces the damage caused by overload or short circuit and other reasons, thus prolongs the system's service life.

　　Fourth, the selection and configuration of circuit breaker

　　In order to give full play to the effect of the circuit breaker, it is vital to select and configure the appropriate circuit breaker. The following are some suggestions for selecting and configuring circuit breakers:

　　1. Select according to the system demand

　　Different electric accompanying heat system has different current and voltage demand, so when selecting circuit breaker, it should be selected according to the specific parameters of the system. Generally speaking, the rated current of the circuit breaker should be slightly larger than the working current of the system to ensure that it can withstand normal load.

　　2. Considering environmental factors

　　The electric accompanying heat system often applies in various complicated environments, such as high temperature, low temperature, humidity, corrosion and so on. Therefore, when choosing circuit breaker, should consider its environmental resistance performance, to ensure that it can work normally in the harsh environment.

　　3. Select high-quality products

　　The quality of circuit breaker directly affects its protection effect. Therefore, when choosing circuit breakers, the products of famous brands should be selected to ensure that they have high quality and reliability.

　　4. Reasonable configuration of circuit breaker

　　In the electric accompanying heat system, according to different circuits and equipments, the circuit breaker should be reasonably configured. For important circuits and equipments, double circuit breaker protection can be used to improve the safety of the system.

　　Circuit breaker in the electric accompanying heat system plays a vital role in protection, can effectively prevent the occurrence of electrical accidents, protect the equipment and personnel safety. Through reasonable selection and configuration of circuit breaker, and maintenance and repair, can give full play to its protection effect, improve the safety and reliability of electric accompanying heat system.