Electrical Energy Metering Device Wiring Diagram Collection

Author: State Grid Corporation of China, Production and Operations Department
Publisher:
Publication Date: 2004-06-01
Features: This atlas can be used by power system and user metering design, installation, inspection, metering management, and power consumption inspection personnel in their work. Based on the technical requirements of DL/T825—2002 "Installation Wiring Rules for Electric Energy Metering Devices," this atlas compiles 143 types of electric energy metering devices currently used in domestic power systems and by users, consisting of different types of energy meters, current transformers, and voltage transformers. The voltage levels range from 220V, 380V, 220/380V, 3~10kV, 3~35kV, 66(63)kV, 110kV and above, used for single-phase lighting, low-voltage and high-voltage three-phase active and reactive energy metering combined wiring. The atlas is divided into two units: Unit 1 is the combined wiring diagrams for current transformer phase-separating wiring methods (abbreviated as phase-separating wiring method), totaling 73 types; the second unit is the combined wiring diagrams for current transformer simplified wiring methods (abbreviated as simplified wiring method), totaling 70 types. Metering devices for billing should adopt the phase-separating wiring method, and the currently used simplified wiring method should gradually transition to the phase-separating wiring method.