The Overall Structure of the Switchgear (Take the center-mounted vacuum circuit breaker cabinet as an example) Taking JYN2-10(Z) high voltage switchgear as an example, its structure can be divided into two parts: cabinet and hand car.Handcar for circuit breaker handcar, the main electrical compon...

High-voltage switchgear refers to electrical products used for on-off, control or protection in power generation, transmission, distribution, power conversion and consumption of the power system. The voltage level is between 3.6kV and 550kV. It mainly includes high-voltage circuit breakers and hi...

High-voltage switch cabinets are widely used in power distribution systems for receiving and distributing electrical energy. Part of the power equipment or lines can be put into or out of operation according to the operation of the power grid, and the faulted part can be quickly removed from the ...

At present, China’s dry power transformers are mostly three-phase solid forming SC series, such as: SCB9 series three-phase winding transformer, SCB10 series three-phase foil transformer SCB9 series three-phase foil transformer.Its voltage level is generally in the range of 6-35kV, the maxi...

1. Heat shrinkable cable accessories Heat shrinkable cable accessories, commonly known as heat shrinkable cable heads, are the most common accessories in power transportation. They are generally used on the terminals of high and low voltage cross-linked cables or oil-immersed cables. Compared wit...

1.Use XL-21, XRM101 series distribution box are suitable for indoor three-phase five-wire low-voltage distribution system, rated voltage of AC 220/380V, rated current of 16A~630A and below, rated frequency of 50Hz, as the use of receiving and distributing electric energy.The product has anti-leak...

Drop out fuse is a branch line of 10 kV distribution lines and the distribution transformer is the most commonly used a short-circuit protection switch. It has economic, convenient operation, to adapt to the outdoor environment with the characteristics of strong, is widely used in 10kV distributi...

First. The operating principle of isolating switch 1. It is forbidden to use an isolating switch to pull in load equipment or load lines. 2 . It is forbidden to open and close the no-load main transformer with an isolating switch. 3 . The following operations are allowed using the isolating switc...

1. Classification of box-type transformers Box-type transformers are divided into European style and American style. The American style has a small volume (Volume0), lower load capacity, and low power supply reliability. The European style has a larger volume, and the load capacity and power sup...

1.Why does the transformer core need to be grounded? When the transformer is in operation, the iron core, the fixed iron core, and the metal structure of the winding, parts, components, etc. are all in a strong electric field. Under the action of the electric field, they have a higher ground pote...

Transformer is a continuous operation of static equipment, more reliable operation, less chance of failure.But because the vast majority of transformers are installed outdoors, and are affected by the operation of the load and the influence of the power system short circuit fault, in the process ...

With the rapid development of new energy, China has become the largest country of hydropower, wind power, solar power generation, and renewable energy accounts for continuous increases. To make these volatility, intermittent clean electric energy, upgrade the power transmission technology is impe...