Reasonable choice of core size to avoid the magnetostrictive vibratory natural frequencies

Reasonable choice by the core size to avoid the natural frequency of the fundamental frequency and the magnetostrictive vibratory two, three, four high-frequency  electric transformer , in order to effectively prevent noise caused by the resonance increases. In silicon steel cut, stacked and standing core production process, should try to avoid external force on the magnetostrictive properties of  air circuit breaker  effects,  Air circuit breaker  to prevent bending stress. Lashing core tightening force is large enough, and even taping to keep the disc straight core, to avoid deformation of the wave. Improved core and tank connection: core vibration feet, respectively, and transformer oil through two paths passed to the tank. Improve the rigidity of the foot pad connection parts can be reduced vibration transmitted from the solid path.