The difference between fast and slow charging of charging stations

Fast charging and slow charging are relative concepts. Generally, fast charging involves high-power DC charging, which can reach 80% of the battery capacity in half an hour. Slow charging refers to AC charging, and the charging process takes 6-8 hours. The charging speed of electric vehicles is closely related to the charger power, battery charging characteristics, and temperature.

Jul 08,2024

Why aren't AC charging stations phased out because they charge much slower than DC charging stations

For new energy vehicle owners, the impact of charging stations on electric vehicles is as important as traditional fuel vehicles, and the user experience of charging stations directly affects the car experience.

Jul 08,2024

Is it necessary to install a leakage alarm device in the distribution cabinet room?

How to measure the insulation resistance of porcelain insulators in low-voltage transmission lines?

Jul 08,2024

Comparison of Development Trends of Various Insulators

Organic composite insulators are rapidly developing new material insulators, with small size, light weight, no need for zero value detection, and the hydrophobicity of silicone rubber materials can greatly improve the pollution withstand voltage of composite insulators. At present, the manufacturing level of various types of core rods has greatly improved, with stable quality and considerable production capacity, which can fully meet the needs of the organic composite insulator manufacturing industry.

Jul 28,2022

Distribution of surface material structure of composite insulators

The outer insulation surface of composite insulators is formed by placing the mixed outer insulation material rubber into a fixed shaped mold cavity, heating and pressurizing vulcanization. The surface material structure distribution is different from the internal material structure distribution. If the surface layer is randomly distributed with white carbon black reinforcing agent particles, due to the intermediate effect of the hydroxyl groups on the outer surface of the white carbon black reinforcing agent and the anti structuring agent hydroxyl silicone oil, there are a considerable thickness of siloxane molecules on the surface of the white carbon black reinforcing agent particles. The outer surface has normal conformational active chain segments of siloxane molecules and a large number of free state ends of siloxane molecules with organic base heads. For the randomly distributed aluminum hydroxide and a small amount of other filler particles with corresponding large particle sizes on the surface layer, At this time, its surface is arranged in a two-dimensional linear siloxane molecule with adhesive orientation and intermolecular crosslinking point interactions, It is impossible to have molecular active segments and very few free state ends of siloxane molecules. Due to factors such as mold heating, pressure vulcanization process, and the fluidity of gel like siloxane molecules, it is impossible to have particle protrusions on the surface of the formed outer edge material due to the presence of aluminum hydroxide and a small amount of other filler particles with particularly large particle sizes on its surface. It is most likely that the top of the particles will be parallel to the surface of the silicone rubber material.

Jan 10,2022

Maintenance and repair of DC power supply system

The main components that cause faults in the DC power supply system are the charging device and battery. There are a large number of semiconductor components inside the charging device, which are easily affected by environmental and temperature factors. In severe cases, they may even break down or burn down the equipment. If there is a significant difference in the technical parameters of two or more charging devices with parallel connections within the DC system, it will affect the occurrence rate of circulating current problems and restrict the operational performance of the charging devices and batteries. In view of this, the operation and maintenance personnel of the distribution equipment need to regularly inspect and maintain lead-acid batteries to ensure the safety and stability of the DC system. In addition, it is necessary to regularly inspect the output voltage value and the input mode of the high-frequency switch rectifier module to ensure that it meets the relevant technical indicators.

Nov 12,2021