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On June 15th, the 127th Canton Fair was officially held. This is the first time that the Canton Fair has been completely held online. There were 50 online exhibition areas and 25,000 exhibitors exhibiting about 1.8 million export commodities.

The technological advancement and rapid replacement of electrical equipment have a direct impact on the stable operation of power systems and electricity prices. In particular, the technological progress of new energy equipment directly promotes the rapid decline in the cost of installed power systems.

When the external flame disappears, the cable can be extinguished by itself, so that minimize the fire damage to the human body and property. Therefore, this kind of cable is widely used in important places such as petrochemical, metallurgy, high-rise buildings, and densely populated places.

Wires and electrical cables are essential building materials for house decoration. In modern homes, wires and cables are the most common current conductors in the family. Many people are confused about the difference between wires and cables. Both are composed of wires, but their structures are different.

In today's wire and cable market, there are many products and production companies of different levels. However, many buyers simply regard price as the procurement standard, which breeds a market with many substandard products. So, what kind of cables are produced in accordance with national standards?What is a national standard electrical cable?

The method of voltage regulation is to draw several taps in the primary coil to connect to the tap opening. The tap opening changes the number of turns of the coil by rotating the contacts. As long as the position of the tap changer is turned, the required rated voltage value can be obtained. It should be noted that voltage regulation should usually be performed after the load connected to the transformer is cut off.

The transformer is a functional component made by the principle of electromagnetic induction, which can transmit and change electrical energy or signal. It is mainly used to increase or decrease AC current and change impedance. Transformers are widely used.

The power transformer is an electromagnetic component. It is static electrical equipment that transforms alternating current and is widely used in almost all electronic products. It is used to change the power generated by the power station to high voltage and reduce the loss during transmission, so as to facilitate long-distance power transmission.