Guizhou electrical equipment manufacturers understand that with the development of the country, the electrical system is also changing, increasingly complex, and the design of electrical system has become very cumbersome, electrical main wiring design, component selection, electrical equipment selection, distribution device design, each link needs to comprehensively consider the site situation and user needs, electrical system calculation, relay protection device The quality of electrical system will directly affect the safety and economic operation of the whole equipment.

1. Electrical system design

Electrical system design is to select the components of the electrical system, circuit calculation, and finally draw the electrical circuit diagram, and the electrical circuit diagram is divided into the main circuit and auxiliary circuit, the main circuit diagram is the most important part of the electrical system.

The three most important contents in electrical system design are electrical schematic diagram, electrical component layout diagram and electrical installation wiring diagram. These three can be used as guidance documents. The electrical schematic diagram is drawn according to the working principle, which needs simple and clear structure. The electrical component layout diagram is used to indicate the actual position of components on the electrical equipment. The electrical installation wiring diagram is used to indicate the actual position of components on the electrical equipment The actual location of the installation of electrical components, the actual wiring drawings.

2. Electrical equipment

The selection of electrical equipment is one of the design contents. In the electrical system, electrical equipment has different working functions, and their selection methods are also different. Some are selected according to the voltage, some are selected through the circuit, and the electrical components with high stability, economic rationality, safety and reliability can be selected as far as possible through the electrical schematic diagram.

Common electrical components are contactors, relays, fuses, low-voltage circuit breakers, switches, buttons. The selection of these equipment is based on voltage and current. The maximum allowable working voltage of electrical equipment shall be 1.1-1.15 times of the rated voltage of the equipment, and the long-term current shall not be less than the maximum continuous working current of the circuit. The selection of fuse is based on the current of the circuit, and its selection formula is as follows: IRN ≥ (1.5-2.5) in, where IRN is the fuse current; in is the circuit current.

3. Power distribution device

Power distribution device is an important part of the electrical control system. Its function is to receive and distribute electric energy, which is mainly the basic requirements of outdoor and indoor power distribution.

With the continuous development of Guizhou electrical equipment manufacturers, the function and quality of products are becoming higher and higher. Therefore, enterprises need to constantly innovate and research and development should be constantly updated. As the main power and core system of equipment, electrical system needs long-term stability and high standards. On some large-scale production equipment, the stable operation and production efficiency of the system are as follows Therefore, how to combine the electrical system with the production demand perfectly is a subject that designers constantly update and challenge, and it is also an important factor for the stable operation of the equipment.