APPLICATION AREAS

It is a component or equipment that can be manually or automatically switched on and off the circuit according to external signals and requirements, so as to realize the switch, control, protection, detection, transformation and regulation of the circuit or non-electric objects. Control appliances can be divided into high voltage control appliances and low voltage control appliances according to their working voltage, which is bounded by 1200V AC and 1500V DC. Generally speaking, low-voltage appliances can be divided into two categories: distribution appliances and control appliances, which are the basic components of complete electrical equipment. In industry, agriculture, transportation, national defense and people power supply, most of the low-voltage power supply, so the quality of electrical components will directly affect the reliability of low-voltage power supply system.

In recent years, wind power generation technology is becoming more and more mature, the capacity of single machine continues to increase, and the wind turbine technology has also undergone major changes, from stall regulation to variable paddle regulation, from constant speed operation to variable speed operation, from gearbox transmission to gearless direct drive technology. The generation efficiency and reliability of wind turbines have been increasing, and the operation and maintenance cost has been significantly reduced.

The working environment of photoelectric industry is mainly high temperature, low temperature, high altitude, coastal and other harsh environment. Due to its location in remote areas, the photoelectric system requires a high degree of exemption from inspection, safety and reliability, and long service life. According to the system requirements of the photoelectric industry, Dajia constantly conducts research on the optimization of mechanical structure and electrical components, and provides customers with better user experience through years of on-site experience and technology accumulation.

All countries in the world adopt the stepless DC motor system with switching resistance or the stepless chopper voltage regulating DC motor system with power electronic control. In 1990, after the appearance of the switching thyristor (GTO) and the insulated gate transistor (IGBT), the developed countries began to use the DC - AC frequency conversion, variable voltage speed regulating AC motor AC drive system. Since the 1990s, all newly built subway lines, monorail lines, and light rail lines adopt AC transmission system with IGBT module, except Shanghai 1 subway line. Ac drive car compared with DC drive car, electricity consumption can be reduced by 40%; Due to the use of regenerative braking, brake shoe consumption is reduced by more than half; Small wheel wear and prolonged wheel replacement cycle; Ac motor maintenance work is very small.

The car will vibrate while driving. This requires that the copper busbars on new energy vehicles have a flexible structure as a whole, so that they can more effectively offset the impact and damage of the vibration of the vehicle on the battery core and other electrical components during driving. As the most reliable interconnection solution for relays and fuses in the power distribution phase, laminated copper bars are also used in new energy vehicles.There are a large number of laminated copper busbars on new energy vehicles.