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  • Knowledge of high-voltage switchgear, power outage operation and fault diagnosis treatment methods

    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...
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  • Basic Knowledge of High Voltage Switchgear

    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 ...
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  • Characteristics and Application of Dry Type Transformer

    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...
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  • Introduction of different types of cable accessories

    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...
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  • The Eight Key Points of The Distribution Box

    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...
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  • Drop Type Fuse Installation

    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...
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  • The Operating Principles of Isolating Switches and Transformers and The Principles of Electrical Inspection and Grounding

    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...
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  • Several Classifications and Characteristics of Box Transformers

    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...
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  • Why does the transformer core need to be grounded?

    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...
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  • Complete Knowledge of Transformer Main Protection and Backup Protection

    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 ...
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  • The world’s first UHV Multi-terminal Flexible DC Converter Station Has Been Built!

    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...
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  • Electric Cable Changed the World

    Since this kind of media first appeared in the 1940s and 1950s and changed American lives forever, the way people watch TV has changed dramatically. Ten years and ten years, television technology developed steadily: color appeared in the 1960s, followed by cable television in the 1970s, video rec...
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