Industrial application

There are many knowledge points in the field of power electricity, covering power system and electrical equipment.

Equipment, power engineering, etc. This paper will sort out and introduce some common knowledge points of power and electricity.

 Power system

1. Composition of power system: Power system usually consists of power plants, transmission networks and users. The power plant is responsible for generating electricity and transmitting it to the transmission network, which distributes the electricity to all users.

2. Classification of power systems: According to different voltage levels, power systems can be divided into high voltage, medium voltage and low voltage systems; According to different power transmission modes, power systems can be divided into AC systems and DC systems.

3. Protection of power system: The power system needs to be protected from abnormal conditions such as overload and short circuit. The protection device can detect the fault in time and cut off the circuit to prevent equipment damage and personal safety accidents.

Second, the electrical equipment

1. Transformer: Transformer is a common equipment in power system, which is used to convert high-voltage electric energy into low-voltage electric energy to meet the needs of different voltage levels. Transformer is mainly composed of iron core and coil.

2. Switchgear: Switchgear is used to control the on-off of circuits, including circuit breakers and disconnectors. The circuit breaker can quickly cut off the circuit to protect the equipment, and the disconnector is used to isolate the equipment from the power supply for maintenance.

3. Generator: The generator converts mechanical energy into electrical energy, which is an important part of the power system. Generators can be divided into DC generators and AC generators according to their different structures and working principles.

4. Power distribution equipment: Power distribution equipment is used to distribute the electric energy of the transmission network to users, such as switch cabinets and distribution boxes. Power distribution equipment needs to meet the requirements of safety and reliability to ensure the stability of users' electricity consumption.

Third, the power engineering

1. Planning and design of power engineering: The planning of power engineering includes the layout and capacity determination of power system; The design includes the location of the line and the design of the tower. Planning and design

Factors such as transmission distance, load demand, safety and stability should be fully considered.

2. Construction and debugging of power engineering: The construction of power engineering includes erection of towers and laying of lines, etc. Debugging includes inspection and adjustment of power equipment to ensure its normal operation.

3. Operation and maintenance of power engineering: After the completion of power engineering construction, the system needs to be operated and maintained. Operation includes the monitoring of power system and the adjustment of operation state, and maintenance includes the regular inspection and maintenance of equipment.

Fourth, the electric energy effect and safety

1. Electric energy effect: Electric energy effect includes resistance, inductance, capacitance, etc. Resistance will produce energy loss, inductance will produce electromagnetic induction, and capacitance will produce electric field effect. These effects need to be reasonably utilized and controlled in power and electrical systems.

2. Electrical safety: Electrical safety is an important consideration in power and electrical engineering. Electrical safety involves electricity safety, equipment safety and construction safety, etc., and relevant codes and standards should be strictly observed to ensure the safety of people and equipment.

To sum up, the knowledge of power and electricity is extensive and complex, involving fields such as power system, electrical equipment and power engineering. Understanding these knowledge points is very important for people engaged in power and electrical work, and it also helps us to better understand and utilize power resources.