Anti-resonance voltage transformer and manufacturing method thereof

• Main Authors: ZHANG YOUBO, LIANG CHAOYONG, HUANG SHAOMIN, LI WENJIN, SU LIANGHE, CHEN JINXING, LIU YONGYU, HUANG LONGJIE, LI PEICUN, CHEN BINGGUI, ZHUANG JIANHUANG, CHEN YIFENG, GUO LUFENG, HUANG ZHILIANG, WANG HAIXIA, LIN PEILING
• Format: Patent
• Language: Chinese; English
• Published: 28.01.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention discloses an anti-resonance voltage transformer and a manufacturing method thereof. The anti-resonance voltage transformer comprises a square iron core, the iron core is a cut iron core with two gaps, one gap of the iron core is used as an air gap, the other gap is not used as an air gap, and the air gap is filled with an insulating material. The anti-resonance voltage transformer is characterized in that one gap of the cut-open iron core is processed to form the air gap and is filled with the insulating material to ensure that excitation current and excitation inductance are linear, so ferromagnetic resonance is avoided; and the size of the air gap is controlled by rigid connection without changing the other gap, so the size of the air gap can be simply and easily controlled through the rigid joint. 本发明公开一种抗谐振电压互感器及其制造方法，包括口字型铁心，所述铁心为具有两个间隙的切开式铁芯，所述铁心的其中一个间隙作为气隙，另一个气隙不作为气隙，气隙内填充有绝缘材料。一种抗谐振电压互感器，将切开式铁心的一个间隙加工形成气隙并用绝缘材料填充以保证励磁电流与励磁电感成线性，避免铁磁谐振的发生，另一个间隙不做改变以刚性连接控制气隙尺寸，从而通过刚性连接处简单容易的控制气隙的尺寸。