Description | GE EPM 6000 Multi-function Power Metering System

GE Consumer & Industrial

Multilin

EPM 6000 Multi-function Power

Metering System

Chapter 2: Electrical Background

2.1Three-Phase Power Measurement

2.1.1 Description

This introduction to three-phase power and power measurement is intended to provide only a brief overview of the subject. The professional meter engineer or meter technician should refer to more advanced documents such as the EEI Handbook for Electricity Metering and the application standards for more in-depth and technical coverage of the subject.

EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE

2–1

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GE EPM 6000 Multi-function Power Metering System instruction manual Three-Phase Power Measurement, Description

Contents

Chapter Page Table of Contents Using the Meter Miscellaneous TOC-4 Introduction DescriptionHighlights EPM 6000 Highlights Utility Peak Demand FeaturesUniversal Voltage Inputs Current Inputs EPM 6000 Measured Values Measured Values Ordering Order CodesEPM 6000 Order Codes Specifications Inputs/OutputsMetering Environmental CommunicationsMechanical Parameters Approvals Type Testing Three-Phase Power Measurement Wye Connection Three-Phase System Configurations Vcn Common Phase Voltages on Wye Services Delta Connection Three-Phase Delta Winding Relationship Three-Phase, Four-Wire Delta Phasors Blondells Theorem and Three-Phase Measurement Phase B Phase C Node n Phase a Electrical Background Power, Energy, and Demand PowerEnergy Power Use Over Time Demand Power and Energy Relationship Over Time Energy Use and Demand Intervals Real, Reactive, and Apparent Power Reactive Energy and Power Factor Apparent power Power Factor Harmonics of a Non-Sinusoidal Waveform Harmonic Distortion Voltage and Current Monitoring Inductive and Capacitive Impedance Waveform Capture Typical Power Quality Problems Power Quality Electrical Background Dimensions Mechanical Installation Ansi and DIN Mounting Panel Cutouts Ansi Installation Steps Ansi Mounting Procedure DIN Installation Steps DIN Mounting Procedure Installation Considerations Electrical Installation CT Leads Pass-Through No Meter Termination CT Leads Terminated to Meter Quick Connect Crimp CT Terminations Voltage and Power Supply Connections Voltage Connection Ground Connections Wiring Diagrams 4-Wire Wye with no PTs and 3 CTs, 3 Element 2 Wye, 4-Wire with no PTs and 3 CTs, 3 Element 10 4-Wire Wye with no PTs and 3 CTs, 2.5 Element 3 Wye, 4-Wire with no PTs and 3 CTs, 2.5 Element 11 4-Wire Wye with 3 PTs and 3 CTs, 3 Element 4 Wye, 4-Wire with 3 PTs and 3 CTs, 3 Element 12 4-Wire Wye with 2 PTs and 3 CTs, 2.5 Element 5 Wye, 4-Wire with 2 PTs and 3 CTs, 2.5 Element 13 3-Wire Delta with no PTs and 2 CTs Delta, 3-Wire with no PTs and 2 CTs 14 3-Wire Delta with 2 PTs and 2 CTs Delta, 3-Wire with 2 PTs and 2 CTs Current-Only Measurement Three-Phase Current-Only Measurement Dual-Phase Current-Only Measurement Single-Phase Communications Setup IrDA COM1 Port3 RS485 COM2 Port 16 RS485 Communications Installation Faceplate Elements Front Panel Interface Faceplate Buttons Using the Meter % of Load Bar Segments Percentage of Load Bar EPM 6000 Accuracy Test Constants Watt-Hour Accuracy Testing Verification Configuring the Meter via the Front Panel OverviewStart Up Main Menu Reset Mode and Password Entry Using the Meter Using the Meter Configuring the Scroll Feature Changing Settings in Configuration Mode Programming the Configuration Mode Screens Configuring the CT Setting Value for amps is a product of the Ct-nand the Ct-Svalues Configuring the PT Setting Configuring the Connection Setting Configuring the Communication Port Setting Address Using the Meter Operating Mode Parameter Readings Operating Mode Using the Meter Modbus Communications Memory Map DescriptionMemory Map HEX Range Units or Comments THD Block7 Description 1 Format Range 7532 PT denominator Secondary Readings Section Modbus Memory Map Notes Communications Modbus Memory Map Data Formats DNP Point Mapping DNP Point MapsDNP Point Mapping Sheet 1 DNP Point Mapping Sheet 2 DNP Point Map Notes DNP Implementation Data Link LayerTransport Layer Following function codes are implemented on the EPM Application Layer DNP Objects and Variations Binary Output Status Object 10, VariationControl Relay Output Object 12, Variation 5 16-Bit Analog Input Without Flag Object 30, Variation 4 32-Bit Binary Counter Without Flag Object 20, Variation Internal Indications Object 80, Variation Class 0 Data Object 60, Variation Communications Introduction Navigation Maps Main Menu Navigation Main Menu Screens Operating Mode Navigation Operating Mode Screens Reset Mode Navigation Reset Mode Screens Configuration Mode Screens Revision History Release DatesChanges to the Manual Major Updates for 1601-0215-A2 GE Multilin Warranty Warranty Index Irda Power Supply Wiring