Combined current transformer

• Main Authors: WANG YING, WANG CONG, GENG CHEN, WANG DONG, ZHAO WEI, DI XINGYU
• Format: Patent
• Language: Chinese; English
• Published: 18.01.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

A combined current transformer relates to the technical field of transformers and comprises a metering transformer and a zero sequence transformer coaxially connected with the metering transformer through a U-shaped conductor, the zero sequence transformer comprises a shell, a coil arranged in the shell, an output pin and a self-checking pin, and the output pin and the self-checking pin are arranged on the shell. The self-checking pin is of a U-shaped structure, the self-checking pin is inserted and fixed on the shell, the bending part of the self-checking pin of the U-shaped structure is a fillet, one end of the self-checking pin of the U-shaped structure, which is opposite to the opening, is a flat edge, and the structure adopts the U-shaped self-checking pin, so that the production and assembly efficiency is improved, and the defective rate is reduced. 一种组合式电流互感器，涉及互感器技术领域，包括一种组合式电流互感器，包括计量互感器、借助U型导体与计量互感器同轴连接的零序互感器，所述零序互感器包括壳体、设置在壳体内的线包及设置在壳体上的输出引脚和自检引脚，所述自检引脚呈U型结构，自检引脚插接固定于壳体上，所述呈U型结构的自检引脚的弯折处为圆角，所述呈U型结构