Three-phase built-in switch and electric energy meter

• Main Authors: JIANG HONGLANG, JIANG XIAOQIANG, WANG YE, DU XINGANG, GE DEHUI, LIN FANTAO, GAO BO, WANG XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 21.11.2023
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention provides a three-phase built-in switch and an electric energy meter, the three-phase built-in switch is arranged in the electric energy meter, and the three-phase built-in switch comprises a first mutual inductor, a second mutual inductor, a third mutual inductor, an electric operation mechanism and a signal port; the first mutual inductor, the second mutual inductor and the third mutual inductor are all connected with a control unit of the electric energy meter; one end of the signal port is connected with the electric operation mechanism, and the other end is connected with a control unit of the electric energy meter; each mutual inductor is used for collecting a current signal of the electric energy meter and sending the current signal to the control unit of the electric energy meter, so that the control unit of the electric energy meter determines a control signal according to the current signal and outputs the control signal to the electric operation mechanism through the signal port; and t