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Renesas Electronics Corporation

Three-Phase Smart Electric Meter

Overview

Description

Energy meters are essential to both the industrial and green energy revolutions. Three‑phase (polyphase) meters are commonly used in heavy industrial applications and in households with high electricity consumption.

While mechanical meters have traditionally dominated the market due to their ruggedness, the growing demand for automatic meter reading (AMR) capabilities and the need for greater resistance to tampering have driven the development of smart meters. These electronic meters enable advanced yet simplified mechanisms for remote data acquisition, monitoring, and processing.

A tamper‑resistant and connected metering system delivers significant value to users by providing detailed, real‑time insights into energy consumption and usage patterns.

System Benefits​:

  • Robust magnetic tamper detection and prevention
  • Support for high‑voltage operation in demanding environments
  • Last‑gasp power capability for event logging during power outages
  • Secure remote data acquisition and monitoring

Comparison

Applications

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16:9Connector Arrow.472Sheet.334Connector Line.418Connector Line.417AS044AS044AS044Sheet.81Sheet.82Sheet.83Sheet.84Connector ArrowConnector Arrow.103Connector Arrow.104Connector Arrow.105Connector Arrow.106Connector Arrow.107Connector Arrow.109Connector Arrow.110Connector Arrow.111Connector Arrow.112Connector Arrow.113Connector Arrow.114Connector Arrow.115Connector Arrow.116Connector LineConnector Line.118Connector Line.119Connector Line.120Connector Line.121Connector Line.122Connector Line.123Connector Line.124Connector Line.125Connector Line.126Connector Line.127Connector Line.128Connector Line.129Connector Line.130Connector Line.131Connector Line.132Connector Line.133Connector Line.134Connector Line.135Connector Line.136Connector Line.137Connector Line.138Connector Line.139Connector Line.140Connector Line.141Connector Line.142Connector Line.143Connector Line.146Connector Line.147GroundSheet.149Sheet.150Sheet.151Sheet.152Signal GroundSheet.187Sheet.188Sheet.189Sheet.190Sheet.191Ground.192Sheet.193Sheet.194Sheet.195Sheet.196EEPROMEEPROMEEPROMIrDA ConnectorIrDA ConnectorIrDA ConnectorLCD 11 x 8LCD 11 x 8LCD 11 x 8Sheet.268Sheet.263Sheet.264Sheet.265Sheet.266Sheet.267Sheet.269Sheet.270Sheet.271Sheet.272Sheet.273Sheet.274Tri componentOptical IsolatorOptical IsolatorOptical IsolatorOptical IsolatorOptical IsolatorSheet.281Sheet.282Sheet.283Sheet.284Sheet.285Sheet.287Sheet.288Darlington.131Sheet.290Sheet.291Darlington.254Sheet.293Sheet.294Darlington.254Sheet.296Ground.297Sheet.298Sheet.299Sheet.300Sheet.301Case SwitchCase SwitchCase SwitchOpen BoxOpen BoxOpen BoxPress Button MenuPress Button MenuPress Button MenuSheet.335333Sheet.333Connector Line.341Sheet.342 222Sheet.344Sheet.347222Sheet.349Sheet.351191919Sheet.353Sheet.355222Sheet.357Sheet.359222Sheet.361Connected signals lineConnector Line.370Connector Line.371Connector Line.372Connector Line.374Connector Line.375Connector Line.376Connector Line.378Connector 1Connector Line.382Connector 1.383Connector 1.384Connector Line.387Connector Arrow.388Connector Line.390Connector Line.391Connector 1.392Connector 1.393Connector Line.394 Isolated GNDIsolated GNDIsolatedGND5V 0.9Amax5V/0.9Amax5V/0.9Amax5V/15mA5V/15mA5V/15mA 3.3V3.3V3.3V3.3V 50mA3.3V/50mA3.3V/50mA3.3V3.3V3.3VConnector Line.401Connector Line.404Connector Line.4053.3V 1.5Amax3.3V/1.5Amax3.3V/1.5Amax5V/1Amax5V/1Amax5V/1AmaxIsolated GNDIsolated GNDIsolatedGNDGNDGNDGND3.3V/500mAmax3.3V/500mAmax3.3V/500mAmaxSheet.413222Sheet.415GNDGNDGND+++3.3V 10mA3.3V/10mA3.3V/10mA3.3V 430mA3.3V/430mA3.3V/430mAGNDGNDGNDBacklit LEDBacklit LEDBacklit LED90V – 510V AC90V – 510VAC90V – 510VACCT1CT1CT1CT2CT2CT2CT3CT3CT3RRRYYYBBBNNNCT4CT4CT4750V DC750VDC750VDCSheet.77Sheet.78Sheet.79Sheet.80Sheet.73Sheet.74Sheet.75Sheet.76Sheet.67Sheet.64Sheet.63Sheet.65Connector Line.446Sheet.451LTE-M ModuleLTE-M ModuleLTE-M ModuleConnector Line.452Super CapacitorSuper CapacitorSuper CapacitorBatterySheet.222Sheet.223Sheet.224Connector 1.454Sheet.461Sheet.462Sheet.463Sheet.464Connector Arrow.465LDOLDOLDOConnector Arrow.469Connector Line.471Connector Line.474Connector Arrow.475RS-485RS-485RS-485Connector Arrow.484Connector Line.506Connector Line.507Connector Arrow.508Connector Arrow.509Sheet.314Sheet.315Line 1pt.1552Ground.318Sheet.319Sheet.320Sheet.321Sheet.322Connector Line.416BT2BT2BT2GNDGNDGND---Connector 1.455NFCNFCNFCDiodeSheet.512Sheet.513Sheet.514Diode.515Sheet.516Sheet.517Sheet.518Diode.519Sheet.520Sheet.521Sheet.522Diode.527Sheet.528Sheet.529Sheet.530DC/DC BoostDC/DC BoostDC/DC BoostSheet.531FlybackFlybackFlybackLogicLogicLogicSheet.532MCUMCUMCUSAR-ADCSAR-ADCSAR-ADC∆ΣADC 24 bit∆ΣADC 24-bit∆ΣADC24-bitGPIOGPIOGPIOI2CI2CI2CVRTCVRTCVRTCVBattVBattVBattVDDVDDVDDI2CI2CI2CUARTUARTUARTLCDLCDLCDIRQ / I2CIRQ /I2CIRQ /I2CUARTUARTUARTGPIOGPIOGPIOMagnetic TamperMagnetic TamperMagnetic TamperFilter, Surge Protector and RectifierFilter, Surge Protector and RectifierFilter, Surge Protector and Rectifier
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