Application And Research Of Three-phase Electric Energy Meter Terminal Simulation System Of Shangqiu Power Supply Company

The inspection workers of a power supply enterprise should improve their ability to discriminate all kinds of connections of three-phase electric energy meter, and to diagnose the abnormal ones. Undoubtedly, three-phase electric energy meter terminal simulation device will be very helpful for them to achieve this goal. Currently, Shangqiu power supply company needs to manufacture three-phase electric energy meter terminal simulation device for the work of the inspection workers.This dissertation firstly analyzes the measurement principles of three phase circuit and three phase active power meter. Based on that, this dissertation puts forward the design strategy of the hardware and software of three-phase electric energy meter terminal simulation system. Three phase electric energy meter terminal simulation system, composing of three phase electric energy meter wiring cabinet and PC, can simulate various connection types of three-phase electric energy meter. Shangqiu power supply company, in association with electric appliance manufacturing enterprises, has successfully developed three phase electric energy meter terminal simulation system, and already put it into practice.The developed three-phase electric energy meter terminal simulation system is composed of Lenovo M4330 computer and three-phase electric energy meter wiring cabinet. Once the serial port communication between the three-phase electric energy meter wiring cabinet and the computer is is established,, three phase electric energy meter wiring cabinet will output electrical parameters according to the simulation software command. At the same time, three-phase electric energy meter wiring cabinet will send the actual output parameters to the computer. As a respond, the computer will clearly display wiring diagram, phase diagram and the power expression. By analyzing the output data of three-phase electric energy meter terminal simulation cabinet, it can be concluded that the three-phase electric energy meter terminal simulation system can meet the design and engineering requirements of Shangqiu power supply company.