State grid three-phase intelligent electric energy meter

• Main Authors: YI JINSHUI, ZHANG ZHILONG
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2011
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model discloses a state grid three-phase intelligent electric energy meter which comprises a voltage sampling module, a current sampling module, an electric energy metering chip, a data processing and controlling chip, a display module, a communication module, a main power module, a power management module, an event logging module and an auxiliary power supply module, wherein the event logging module is used for recording and storing all the status information of the electric energy meter permanently; the voltage sampling module and the current sampling module are connected with the electric energy metering chip respectively; the electric energy metering chip is connected with the data processing and controlling chip which is connected with the event logging module, the display module and the communication module; the main power module is connected with the power management module; and the auxiliary power supply module provides power for the electric energy meter and is connected with the power ma