The impact closing test of a transformer does not necessarily have to be conducted from the high voltage side, which is related to the application scenario of the transformer. Generally, this test is conducted in conjunction with the operation of the transformer. Due to the fact that most of the tra
The whistling sound of a transformer is mainly due to the low-frequency oscillation contained in the excitation component of the transformer, which causes the magnetic molecules of the magnetic core to move under this low-frequency magnetic field, resulting in mechanical vibration and causing vibrat
Unit transformers are a common and very important electrical equipment. We often see a layer of pebbles placed at the bottom of the transformer. Why are these pebbles placed under the transformer?1、 Dry type transformer and wet type transformerDry type transformer is a type of transformer that does
1. What is a microcomputer protection device?Answer: A microcomputer protection device is an automatic device that can reflect the faults or abnormal working status of various electrical equipment in the power system, and act on circuit breakers to trip or send signals.2. What are the basic tasks of
In the 1960s, rubber wires (BX series) were used for low-voltage 380V overhead lines in my country. The insulation life of this type of wire was less than 2 years. Later, plastic wires (BV series) were used, and the life span could be extended to about 8 years, but it was still not satisfactory. In
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