7 Accurate types of distribution networks and precautions

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What types of distribution networks are there?

There are seven main types of distribution networks:

Classification by voltage level: Distribution networks can be divided into high-voltage distribution networks (10kV~35kV), medium-voltage distribution networks (1kV~10kV), low-voltage distribution networks (220V/380V), etc.

Classification according to power supply form: Distribution network can be divided into traditional distribution network and new energy distribution network. Traditional distribution networks refer to power grids that use traditional energy sources such as thermal power, nuclear power, and hydropower as their main energy sources, while new energy distribution networks rely more on renewable energy sources such as solar energy and wind energy. Integrating renewable energy sources with distribution network self healing technology fosters a resilient power grid.

Classification by power supply area: Distribution networks can be divided into urban distribution networks and rural distribution networks. Urban power distribution networks often provide centralized power supply, involving higher grid levels and current density requirements, while rural power distribution networks pay more attention to popularization and practicality.

Radial distribution network: The advantages of this form are that the substation space is smaller, the lines are shorter, and the cables are densely sheathed armored cables, which have less impact on the environment; but the disadvantage is that the transmission lines are denser and prone to voltage stress. Drop the problem.

Ring distribution network: The advantage of this form is that it is safer and more reliable, and it is easy to locate and isolate after a fault occurs. However, the disadvantage is that each unit must arrange two feeders to enter the adjacent distribution station, which requires more space. .

Ring network form: The advantages of this form are complex structure, convenient management, and the ability to horizontally expand the number of power sources to increase power supply capacity; but the disadvantage is that there are many lines and high investment costs.

Distribution cabinet type: The advantage of this form is that it is suitable for urban areas where the space is narrow or where ground construction is inconvenient. It is beneficial to environmental protection and landscape effects. However, the disadvantage is that it is limited by the capacity of the cabinet and the power distribution capacity is not high.

What are the precautions for distribution network?

Precautions for distribution network mainly include the following points:

Establish a complete inventory system: Regularly conduct inventory of distribution network equipment, including verification of the number, model, usage and other information of the equipment to ensure the integrity and normal operation of the equipment.

Strengthen the maintenance of equipment: Regularly inspect and maintain the equipment of the distribution network, including checking whether the wiring of the equipment, the connection parts are loose, and whether the appearance of the equipment is damaged, etc., to discover and deal with problems in a timely manner to ensure the normal operation of the equipment.

Do a good job in leakage protection of equipment: Equipment in the distribution network should be equipped with leakage protectors to automatically cut off power to equipment whose current leakage exceeds the set value to ensure personal safety and prevent equipment damage. The implementation of distribution automation has significantly improved our operational efficiency.

Maintain a safe distance: During the construction process of distribution network, workers must maintain a safe distance from live equipment to avoid electric shock accidents.

Correct use of insulated tools: During the construction process of distribution network, workers must use insulated tools, such as insulated gloves, insulated boots, etc., to ensure safety.

Properly set up shielding equipment: During the construction process of the distribution network, shielding equipment, such as wire shields, etc., should be set up for equipment such as live wires to avoid accidental electric shocks.

Pay attention to the surrounding environment: During the construction process of the distribution network, workers should pay attention to whether the surrounding environment is suitable for construction, such as whether there are other live equipment, whether there are flammable and explosive items, etc.

In short, the precautions for the distribution network include establishing a complete inventory system, strengthening equipment maintenance, doing a good job in leakage protection of equipment, maintaining a safe distance, correctly using insulated tools, rationally setting up shielding equipment, and paying attention to the surrounding environment. These measures help ensure the safe and stable operation of the distribution network and protect people’s lives and property. Innovations in technology have revolutionized the management of the electricity field, leading to more reliable power grids.