GE EPM 5350, EPM 5200, EPM 5300 Consumption, Demand and Poor Power Factor, Consumption WH = W ⋅ T

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CHAPTER 1: AC POWER MEASUREMENT

CONSUMPTION, DEMAND AND POOR POWER FACTOR

1.3Consumption, Demand and Poor Power Factor

CONSUMPTION: WH = W ⋅ T

W = instantaneous power T = time in hours

The total electric energy usage over a time period is the consumption of WH.

Typically, the unit in which consumption is specified is the kilowatt-hour (KWH): one thousand watts consumed over one hour. Utilities use the WH equation to determine the overall consumption in a billing period.

DEMAND: Average energy consumed over a specified time interval. The utility determines the interval, typically 15 or 30 minutes. The utility measures the maximum demand over a billing period. This measurement exhibits a deviation from average consumption, causing the utility to provide generating capacity to satisfy a high maximum consumption demand. The highest average demand is retained in the metering system until the demand level is reset.

POOR POWER FACTOR: Results in reactive power consumption. Transferring reactive power over a distribution network causes energy loss. To force consumers to correct their Power Factor, utilities monitor reactive power consumption and penalize the user for Poor Power Factor.

EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL

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Contents GE Multilin EPM 5300 Power Metering System ChapterPage Table of Contents Programming 114 111112 113Table of Contents TOC-IV Single Phase System EPM 5300 Series Meters AC Power Measurement= E I cosΘ Power W in a single phase system isDelta Wye Three-Phase SystemPoly Phase System 1 Delta, 2 Wye Consumption WH = W ⋅ T Consumption, Demand and Poor Power FactorSin ω ⋅ t Waveform and HarmonicsMechanical Installation EPM 5300 Series Meters Mechanical InstallationInstallation with K-110 option for limited space conditions Port Mechanical Installation Feet EPM 5300 Series Meters Electrical InstallationConnecting the Current Circuit Helpful Debugging Tools Option 1 Isolating a CT Connection Reversal power readingCT Connection Connecting the Voltage Circuit Selecting the Voltage Fuses Externally fuse power supply with a slow-blow 3 Amp fuse Connection to the Main Power SupplyList of Connection Diagrams Electrical Connection InstallationLine Load Back View Line Back View B C Load Line B C Back View Load EPM 5300P-S Single Phase with CT and PT ConnectionLine This section applies only to the -NL or -NL2 Relay Option Relay, Protection and Pulse OutputEPM 5300P Relay Overview 2 2 Relays & 1 KYZ Pulse Output -NL OptionClose-up of the Relay and KYZ pulse output on the rear panel Standard Rate Table for Watts Standard Rate Table for Watts KYZ Pulse Outputs NL2 OptionKYZ Pulse Outputs NL2 Option RS-232C EPM 5300 Series Meters Communication InstallationRS-485 RS-485 Hookup Diagram 2 wire Half DuplexRS-485 Hookup Diagram 2 wire Half Duplex Closed Loop Connecting 4-Wire bus to RS-485 Port RS-485 Hookup Diagram 4 wire Full DuplexRS-485 Hookup Diagram 4 wire Full Duplex Detail View You may want to use a Modem Manager RS485-RS232 Converter Network of Instruments and Long Distance CommunicationModem Connected to the Device Remote Modem Modem Connected to Computer Originate ModemProgramming the Modem Debugging Communication Problems Tell modem to write the new settings to activate profileTotal Kvah N/A on EPM 5200P EPM 5300 Series Meters OverviewFreq ± Total KWHEPM 5300P front panel with display and keypad Sequence Accessing the Power FunctionsPress Power to select the power category Press PHASE/NEXT for the desired phase Accessing Voltage and Current PhasesDisplay blanks and indicates the %THD value momentarily Accessing %THD FunctionsViewing Individual Phase Indication for Power Functions Phase Accessing Max/Min ValuesRepeat this procedure for each value you wish to reset Resetting ValuesUnprotected Reset To reset the min of Amps aPassword is Protected ResetWhile the question Resetting Hour ReadingsPress Power once Time a password digit AppearsTo locate readings that exceeded Limit Accessing the LM1/LM2 Set LimitsTo view the setup of the LM1/LM2 set limits To access the set limitPress and hold down Voltage Phase Reversal and ImbalanceVoltage Phase Reversal This display indicates aPrint Programming Data Access ModesEnter Programming Mode see Programming Section Print Operating DataMiddle display Release both buttons Press and hold PHASE/NEXTPrint Operating Data Print Programming Data Step Press and hold PHASE/NEXT Accessing Firmware Version/LED TestEPM 5300 Series Meters Programming Overview General ProcedureGROUPS, Functions, and Switch Packs Switch PacksActivates new data entry and enters or exits from Programming Mode Data EntryPoint from Function and Group level Position UP or DownStandard Numeric Data Entry EPM 5200P EPM 5300 Series Meters EPM 5200PVA/HR EPM 5300P vs EPM 5200P vs EPM 5350PChecksum Error-Protective Self-Checking Algorithms EPM 5300 Series Meters Entering Programming ModeFlashes momentarily in middle display Password EntryEntering Programming Mode If 3 is not already displayed Press Amps until 3 appearsNumber of Phases System Configuration see TableRelay 1 Set-up / Time delay Relay 2 Set-up / Time delayPress Amps to activate the Group Enter Group Level of Programming Mode see ChpLower display indicates current Interval setting Group 0, Function 0-The Integration IntervalTo change the Meter Address Programming Group 0 Global Meter SetupGroup 0, Function 2 Baud Rate Group Function Pack Group 0, Function 3 System ConfigurationOpen Delta System Installation Programming Programming Group 0 Global Meter Setup Printing Option Modbus Plus CapabilityTo change the System Configuration Switch Settings Group 0, Function 3-Programming ProcedureRelay Mode Enter in Group 0, Function 4, Pack ‘p’, Segments C and D Programming StepsLI M IT S Relay 2 On to Off Delay Time To change Time DelaysRelay 1 On to Off Delay Time Relay 1 Off to On Delay TimeTo program Relay 2 KYZ Parameters Group 0, Function 6-KYZ Parameter SelectionTo perform the KYZ Parameter Selection Enter Group Level of Programming Mode see Chp KYZ Pulse Value How to Use KYZ Pulse Value Table for MultiplicationApplies to -NL2 Option only Selection is Multiply by How to Use KYZ Pulse Value Table for DivisionTo change the KYZ pulse value Press Amps to activate the Group Appears in upper display Group 0, Function 7-Number of PhasesEnter 2 for single phase/two wire Enter Group Level of Programming Mode. ChapterFormulas Group 1 Programming Format Typical Full Scale Settings for VoltsGroup 1, Function Voltage Full ScalePress Volts to move decimal point Press Amps to store Press MAX/MIN/LIMITS until 1. appears in upper displayPress Amps to activate Group Appears in upper display 10-76 Full Scale Settings for Amps To change the Full Scale SettingsPress Amps to begin Data Entry Sequence Entering the Scale Factor Decimal Point Selection StepScale Selection and Decimal Placement for Watts Display To change the scale factor setting for wattageEntering the Scale Factor Step 10-82 EPM 5300 Series Meters Programming Group 2 Meter Calibration High End Calibration-Amps A, B, C Calibration RequirementsGroup 2 Programming Format High End Calibration-Volts AN, BN, CNTo change the calibration high end-Functions 0 Group 2, FunctionsGroup 2, Functions For Amps Low End Function11-87 11-88 LM1 and LM2 SET Limits EPM 5300 Series Meters Groups 4, 5 Set Limits RelaysTrip Relay Time Delays & Relay Mode V O L T S A M P S Group 4 Functions 0-3-LM1/LM2 Set LimitsGroup 4 Example for Function Group 4 Programming Format for Limit ConditionGroup 4 Programming Format Group 4 FunctionsGroup 5 Programming Format for Limit Condition There are 3 switches to set with limitsGroup 5 Functions 0-7-LM1/LM2 Set Limits Digit Up Digit Down 0120 Special CasesGroup 5 Functions Group 5 Example for FunctionGroup 6 Functions Group 6 LM1/LM2 Set LimitsGroup 6 Programming Format For THD Limit Conditions Digit Up Digit Down 012.0 Group 6-Example for FunctionGroup Limits or Relays Programming ProcedureLimits or Relays Programming Procedure Press Amps once to Disable the Limit12-100 Phase Imbalance Phase Reversal and Phase ImbalanceTrip Relay Level ENABLE/DISABLE Voltage Phase Imbalance Group 7, Function 0-Voltage Phase Reversal DetectionTo change the phase reversal setting Voltage Phase Reversal Detection13-104 To change the percentage voltage phase imbalance Group 7, Function 1-Percentage Voltage Phase ImbalanceMiddle and lower displays indicate new settings Exiting Programming Mode EPM 5300 Series Meters Exiting Programming ModePress Amps to exit from Function Level to Group Level Meter returns to Function LevelEPM 5300 Series Meters Programming Quick Reference Entering the Programming ModeData Entry Sequence Programming Groups Group 0 Global Meter SetupGroup 2 Calibration Group 1 Full Scale SetupOn to OFF delay time OFF to on delay time Volts Full Scale Currents Full Scale Power Full ScaleGroup 6 THD Limits Group 5 Power Function LimitsGroup 3 Calibration Ratios Group 4 Volt/Current LimitsDetect Reversal Imbalance percent Limit Group 7 Imbalance/Reversal LimitsGroup 8 DC output Calibration ⎯ Scroll Packs 89L. Low-End Calibration 89H. High-End Calibration⎯ Scroll Groups ⎯ Scroll Functions15-116 EPM 5300 Series Meters Ethernet Option Ethernet Module AutoIP Ethernet Option SetupTelnet to Port Network Port LoginNetwork Configuration ARP on UnixConfiguration Parameters Baud Rate

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