high voltage fuse is the simplest protective device used to protect electrical equipment from damage caused by overload and short-circuit currents; Select different types of high-voltage fuses according to installation conditions and purposes, such as outdoor drop out and indoor type. For some specialized equipment, a dedicated series of high-voltage fuses should be selected; The fuse we often refer to is a type of fuse. The energy crisis and environmental pollution problems are increasing day by day in today's society, and the widespread haze weather across the country has sounded the alarm for people. In terms of environmental pollution, the impact of automobiles cannot be ignored. Developing efficient, energy-saving, and zero emission clean electric vehicles has become an inevitable trend in the development of the automotive industry both domestically and internationally. In order to improve the power performance and driving range of electric vehicles, the voltage of the electric vehicle power battery pack is increasing, reaching several hundred volts, and the energy can reach tens or even hundreds of kilowatt hours. Once a short circuit occurs in the power battery pack, it will instantly generate enormous energy, posing a danger of explosion and fire, seriously endangering the safety of the vehicle and passengers. In order to ensure the safety of on-board electrical appliances and passengers, and prevent short circuits and overloads, fuses are generally used for protection.
In order to ensure the proper functioning of the fuse and the safe operation of the vehicle's electrical appliances, it is particularly important to choose the appropriate type and specifications. The selection of fuses involves the following factors: current characteristics applied to the fuse, voltage characteristics, ambient temperature of the fuse, installation size limitations, application circuit, etc. When the applied voltage and installation size are constant, the selection of fuses mainly considers three factors: current characteristics, ambient temperature, and application circuit. From the perspective of application circuits, the vehicle circuit can be divided into high-voltage high current protection zone and medium low voltage low current protection zone according to the strength of the current
Post time: Nov-29-2024