A method for calibrating withstand voltage level of iron core silicon steel sheet of saturated reactor

Abstract

The invention provides a method for calibrating the withstand voltage level of a saturable reactor iron core silicon steel sheet, comprising the following steps: establishing a silicon steel sheet withstand voltage theoretical model; equivalenting the silicon steel sheet withstand voltage theoretical model to a silicon steel sheet withstand voltage circuit analysis model; determining Saturated reactor iron core silicon steel sheet withstand voltage level; judge whether the silicon steel sheet meets the withstand voltage requirements. The method for calibrating the withstand voltage level of the iron core silicon steel sheet of the saturable reactor provided by the present invention has an intuitive analysis model of the withstand voltage circuit of the silicon steel sheet and does not require complex numerical analysis of the electromagnetic field; the method is simple and can be directly judged by the electrical parameters and structural parameters of the reactor Insulation strength; and it can directly give the insulation voltage strength instead of the equivalent resistance, which has greater engineering practice significance.

Description

technical field [0001] The invention relates to a verification level, in particular to a method for verifying the withstand voltage level of a saturable reactor iron core silicon steel sheet. Background technique [0002] The withstand voltage of the silicon steel sheet of the saturated reactor is the basic parameter for the purchase of the iron core. During the turn-on and turn-off process of the thyristor, if the voltage strength of the insulating layer is greater than the allowable value, the loss of the iron core will increase abnormally, which will affect the electrical parameters of the saturable reactor. In this way, accidental damage or accelerated degradation of the thyristor element will be directly caused. [0003] The iron core of the saturable reactor is made of laminated silicon steel sheets with a large number of layers. Under the action of high-frequency current, a large electromotive force will be induced on the silicon steel sheet, thereby generating eddy...

AI Technical Summary

Problems solved by technology

During the turn-on and turn-off process of the thyristor, if the voltage strength of the insulating layer is greater than the allowable value, the loss of the iron core will increase abnormally, which will affect the electrical parameters of the saturable reactor

In this way, it will directly cause accidental damage or accelerated degradation of thyristor components

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