Follower (Fuse) refers to a kind of electrical appliance that makes the melt and disconnect the circuit when the current exceeds the specified value.The fuse is a type of current protector made of the melt by the heat from the heat generated by the heat generated by its own heat to melt the melt, thereby disconnecting the circuit; using this principle.The fuse is widely used in high and low voltage power distribution systems and control systems, as well as electric equipment. As a protector of short -circuit and over -current, it is one of the most common protection devices.
Fuse manufacturer
Tianjin Zhitaida Technology Co., Ltd., is located in the Bohai Sea, Tianjin Nankai District, registered in 2008, with an annual turnover of more than 10 million. It is a professional company of low -voltage power distribution and industrial automation products of science and trade, services and technology.Its positive fuse RT18 is very popular with users.Beijing Sanlinlon Thai Electric Business Center, located in Fengtai District, the capital, registered in 2005, and has an annual turnover of millions. Its main products include fuse, micro -switch, fuse, fast fuse, non -standard melting fractureObjects and other.Zhejiang Xinli Follower Co., Ltd., located in Leqing City, Zhejiang, is located in the world -renowned high and low voltage appliance manufacturing center, and the capital of China Electrical Appliances Xinguang Industrial Zone.This manufacturer is a professional factory for producing low -voltage fuses. It has always served in major power departments across the country. The development of Chinas power industry and the development of Chinas railway electrification industry have made important contributions.Wuxi Citizen Electric Co., Ltd., is located in Binhu District, Wuxi City, Jiangsu. It is registered in 2002 and has an annual turnover of more than millions.Minyang was originally founded in 1993. It mainly operates electrical products such as high and low voltage electrical appliances, including the fuse.
Selection of fuse
Circuit protection (GG/GL characteristics): The overload current and short -circuit current in the line will cause the wires and cable temperature to be too high, resulting in insulation damage of the wires and cables, and even broken.The fuse can be used as a wire, cable overload protection can be arranged on the line or end end of the wire, cable, and the rated current of the fuse is about 1.25 times the line current; the fuse during short circuit protection must be installed on the wire end of the wire and cable.The rated current of the fuse is about 1.45 times that of the off -deduction current.Electric protection (AM/GM characteristics): A simple set of motor lines are usually composed of fuses, contactors, heat relays, motors, etc.According to experience, in this line, the rated current of the fuse is about 1.2 to 1.5 times the rated current of the motor.Capacitor switching equipment protection: In the capacitor switching device, the fuse is used for short -circuit protection, and the rated current of the selected fuse should not be less than 1.6 times that of the rated current of the capacitor.
The difference between the fuse and the circuit breaker
1) The principle of the fuse is that the current flow of the current to the conductor will heat the conductor to achieve the melting point of the conductor after the melting point of the conductor.It is a cumulative heat, so it can also achieve overload protection.Once the melt is burned, the melt must be replaced.2) The circuit breaker can also achieve short -circuit and overload protection of the line, but the principle is different. It is to achieve disconnection protection through the magnetic effect of the current base.In actual, when the electric negative load in the circuit is close to the load of the fuse used for a long time, the fuse will gradually heated until the fuse.As mentioned above, the fuse of the fuse is the result of the result of the common effect of current and time to protect the line. It is one -time.The current of the circuit is the current of the circuit suddenly increased. When the load of the circuit breaker is over the load, it will automatically disconnect. It is the protection of an instant current in the circuit.Big protection.When the reason is found, you can continue to use it.In short, the fuse of the fuse is the result of the common action of the current and time, and the circuit breaker will stick to the header as soon as the current is over.
The function of the fuse
When the circuit fails or abnormal, it may damage some important devices or valuable devices in the circuit as it is continuously rising and the elevated current may also burn the circuit or even cause a fire.If the fuse is placed correctly in the circuit, then the fuse will increase to a certain height and a certain time at a certain height and a certain time.The device can not use the fuse. The thermal relay needs to be used in conjunction with the AC contactor. Due to the overload, the contact loop on the thermal relay is disconnected and cut off the control loop. At present, the fuse is generally used to control the circuit.

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