The magnetic circuit is an important component of the transformer core, which is a laminated or wound structure that provides a low magnetic resistance path for the main magnetic flux generated by the excitation winding. A part of the iron core is surrounded by windings, called the iron core column;
1. Fuction:When lightning overvoltage invades a substation or other buildings along an overhead line, flashover may occur, and even the insulation of electrical equipment may be punctured. Therefore, if a protective device, namely a surge arrester, is connected in parallel at the power inlet end of
A transformer is mainly composed of the core, windings, oil tank, conservator, bushings, tap-changer, breather, pressure-relief device, radiator, Buchholz (gas) relay, oil purifier, and internal insulation. Their functions are described below:1. CoreFunction: Forms the magnetic circuit for alternat
Gas relay (also known as gas relay) is a protective device used in transformers, installed in the pipeline between the oil storage tank and the oil tank of the transformer. When the oil decomposes and produces gas or causes oil flow surge due to internal faults of the transformer, the contact of the