Electrical knowledge

In the operation of power transformation and distribution, transformers are essential. It is necessary to be familiar with and master the basic knowledge of transformers. The basic knowledge reserve of transformers is a necessary skill for every power worker!

High voltage circuit breakers (or high-voltage switches) can not only cut off or close the no-load current and load current in high-voltage circuits, but also cut off the overload current and short-circuit current through the action of relay protection devices when the system fails. They have...

There are a wide variety of circuit breakers, and primary-level circuit breakers in power systems are not permitted for horizontal installation. Even in secondary distribution circuits used by enterprises and companies, intelligent universal circuit breakers are also not allowed to be installed...

Protection of Outdoor Box Transformer Distribution of surge current When the power supply is led from an outdoor transformer to a building equipped with lightning protection devices, GB 50057-2010 4.3.8, paragraph 4 requires that surge protectors with Clas...

Box type substation, also known as prefabricated substation or prefabricated substation. It is a factory prefabricated indoor and outdoor compact distribution equipment consisting of high-voltage switchgear, distribution transformers, and low-voltage distribution devices arranged according to a...

Transformer oil is a low viscosity oil suitable for use in electrical equipment such as transformers, for cooling and insulation purposes. Its main functions are as follows: Insulation. Transformer oil has much higher insulation strength than air. Immersing insulation material in oil can not o...