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CHAPTER 1: THREE-PHASE POWER MEASUREMENT

EPM 6010 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE

1–11

FIGURE 1–8: Energy Use and Demand Intervals

As seen in this example, it is important to recognize the relationships between power, 
energy and demand in order to effectively control loads or to correctly monitor use.

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60

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100

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8

Intervals (15 mins.)

kilow

att

-hours

Содержание Multilin EPM 6010

Страница 1: ...ion 1 17 Manual P N 1601 0038 A1 Manual Order Code GEK 113637 Copyright 2012 GE Digital Energy GE Digital Energy 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 In...

Страница 2: ...cuits and sources of electric power Failure to shut equipment off prior to removing the power connections could expose you to dangerous voltages causing injury or death All recommended equipment that...

Страница 3: ...ous situation which if not avoided could result in minor or moderate injury Note Indicates significant issues and practices that are not related to personal injury NOTE Indicates general information a...

Страница 4: ......

Страница 5: ...2 6 3 MECHANICAL INSTALLATION INTRODUCTION 3 1 ANSI INSTALLATION STEPS 3 3 DIN INSTALLATION STEPS 3 4 EPM6010 TRANSDUCER INSTALLATION 3 5 4 ELECTRICAL INSTALLATION CONSIDERATIONS WHEN INSTALLING METE...

Страница 6: ...METER S WEB INTERFACE 6 10 HOME WEB PAGE 6 10 BACNET OBJECTS STATUS WEB PAGE 6 11 CHANGE PASSWORD WEB PAGE 6 12 STATISTICS WEB PAGE 6 13 RESET CONFIGURATION WEB PAGE 6 14 USING THE EPM6010 IN A BACNET...

Страница 7: ...DE TOC 3 APPENDIX C DNP MAPPING FOR EPM6010 INTRODUCTION C 1 DNP MAPPING DNP 1 TO DNP 2 C 2 APPENDIX D DNP 3 0 PROTOCOL ASSIGNMENTS FOR EPM6010 DNP IMPLEMENTATION D 1 DATA LINK LAYER D 2 TRANSPORT LAY...

Страница 8: ...TOC 4 EPM 6010 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE...

Страница 9: ...a wye connection or a delta connection Each connection has several different manifestations in actual use When attempting to determine the type of connection in use it is a good practice to follow th...

Страница 10: ...t from the ideal 120o separation Three phase voltages and currents are usually represented with a phasor diagram A phasor diagram for the typical connected voltages and currents is shown below FIGURE...

Страница 11: ...ntains four wires if you trace the circuit back to its source usually a transformer In this type of connection the phase to ground voltage will be the phase to ground voltage indicated in the table ab...

Страница 12: ...er of the delta is grounded This means the phase to ground voltage will be zero for one phase and will be full phase to phase voltage for the other two phases This is done for protective purposes FIGU...

Страница 13: ...here is no current coil Three phase power measurement is accomplished by measuring the three individual phases and adding them together to obtain the total three phase value In older analog meters thi...

Страница 14: ...rent simultaneously and calculate the individual phase and three phase power values The advantage of simultaneous sampling is the reduction of error introduced due to the difference in time when the s...

Страница 15: ...N POWER METERING SYSTEM USER GUIDE 1 7 power flow in three wires This will require three voltage coils and three current coils a three element meter Similar figures and conclusions could be reached fo...

Страница 16: ...based in part on the amount of energy used Typically electrical energy is measured in units of kilowatt hours kWh A kilowatt hour represents a constant load of one thousand watts one kilowatt for one...

Страница 17: ...y to accumulate the energy readings as illustrated in Figure 1 7 above and adjust the energy reading to an hourly value that constitutes the demand In the example the accumulated energy is 14 92 kWh B...

Страница 18: ...mand it is necessary to accumulate the energy readings as illustrated in the Power Use Over Time figure above and adjust the energy reading to an hourly value that constitutes the demand In the exampl...

Страница 19: ...GUIDE 1 11 FIGURE 1 8 Energy Use and Demand Intervals As seen in this example it is important to recognize the relationships between power energy and demand in order to effectively control loads or t...

Страница 20: ...nt that is at quadrature angularly rotated 90o or perpendicular to the voltage Figure 1 9 shows a single phase voltage and current and breaks the current into its in phase and quadrature components FI...

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