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EPM 5200, 5300, 5350
DIGITAL MULTIFUNCTION POWER MONITORS
Instruction Manual
GEK-106557A
Copyright © 2004 GE Multilin
g
GE Industrial Systems
NORTH AMERICA EUROPE
215 Anderson Avenue, Markham, Ontario, L6E 1B3 Canada Avenida Pinoa 10 48710, Zamudio (Vizcaya) Spain
Tel: (905) 294-6222 Fax: (905) 201-2098 Tel: +34 94 485 88 00 Fax: +34 94 485 88 45
E-mail: info.pm@indsys.ge.com
Internet: http://www
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TABLE OF CONTENTS 5.8: Accessing the LM1/LM2 CHAPTER 1: AC POWER Set Limits.................................. 28 MEASUREMENT .............1 5.9: Voltage Phase Reversal and 1.1: Single Phase System................1 Imbalance ................................ 29 1.2: Three-Phase System ................2 5.10: Access Modes ........................ 30 1.3: Consumption, Demand and 5:11: Print Operating Data............... 30
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CHAPTER 10: PROGRAMMING GROUP 1: CHAPTER 14: EXITING THE PROGRAMMING VOLTAGE, AMP AND WATT MODE ............................. 79 SCALE SETTINGS.........55 10.1: Group 1, Function 0Full CHAPTER 15: PROGRAMMING QUICK Scale Voltage Settings, Scale REFERENCE
81 Factor & Decimal Point 15.1: Entering the Programming Placement............................
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CHAPTER 1: AC POWER MEASUREMENT CHAPTER 1 AC POWER MEASUREMENT The economics of electric power distribution networking dictate several configurations of AC power transmission. The number of phases and voltage levels characterize these configurations. 1.1: Single Phase System A single phase system is a basic two-wire system used in low power distribution applications, such as residential communities or offices. Typically, the voltage is 120V AC. For higher power requirements, suc
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CHAPTER 1: AC POWER MEASUREMENT Reactive Apparent Power (VA) Power (VAR) Real Power (W) Figure 1.2: Relationship between apparent, real and reactive power Ideal power distribution should have a PF of 1. This condition can be met only if no reactive power loads exist. In real life applications, many loads are inductive loads. Often, corrective capacitors are installed to correct Poor Power Factor (see Section 1.3). 1.2: Three-Phase System A three-phase system delivers higher
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CHAPTER 1: AC POWER MEASUREMENT Voltages between the phases vary depending on loading factors and the quality of distribution transformers. The three-phase system is distributed in different voltage levels: 208V AC, 480V AC, 2400V AC, 4160V AC, 6900V AC, 13800V AC, and so on. Power measurement in a poly phase system is governed by Blondel's Theorem. Blondels Theorem states that in a power distribution network which has N conductors, the number of measurement elements required to
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CHAPTER 1: AC POWER MEASUREMENT 1.4: Waveform and Harmonics Ideal power distribution has sinusoidal waveforms on voltages and currents. In real-life applications, where inverters, computers, and motor controls are used, distorted waveforms are generated. These distortions consist of harmonics of the fundamental frequency. SINUSOIDAL WAVEFORM: A sin (ω ⋅ t) DISTORTED WAVEFORM: A sin(ω t)+ A sin(ω t) + A sin(ω t)+ A sin(ω t) + L 1 1 2 2 3 3 TOTAL HARMONIC DISTORT
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CHAPTER 2: MECHANICAL INSTALLATION CHAPTER 2 MECHANICAL INSTALLATION These diagrams display the various possible mechanical installations and Communication Converter installation. The various models use the same hookup and installation. 4.50 SQ. MAX AC VOLTS A B C A B C MIN N N N B C A LM1 MAX AC AMPS THD A B C N K POWER PF 2.0 KW KVA KVAR KVAH KWH FREQ 3.0 MAX/MIN PHASE VOLTS AMPS POWER LIMITS NEXT 4.375 SQ. 0.890 Diagram 2.1: Standard installation 3 FOOT CABLE 3.50 0.80 A
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CHAPTER 2: MECHANICAL INSTALLATION SIDE VIEW FIRST PUT (16) PIN (4) 8-32 SCREWS CONNECTOR TOGETHER. 0.80 (2) 8-32 SCREWS WILL LINE UP WITH 2 PEMS ON THE BACK PLATE. RECOMMENDED CUTOUT 0.198 DIA. 1.6875 4.0 DIA. 3.375 1.6875 3.375 BACK VIEW Diagram 2.3: Standard cutout W Port Diagram 2.4: Optional Communication Converter or DC Output Module Installation * Recommended wire gauge is 20 AWG for DC Output or RS-485 options. Note: Carefully line up the guide screw and 8 pin port connec
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CHAPTER 3: ELECTRICAL INSTALLATION CHAPTER 3 ELECTRICAL INSTALLATION 3.1: Connecting the Current Circuit Install the wiring for the current at 600V AC insulation as a minimum. The cable connector should be rated for 6 Amps or greater and have a cross-sectional area of 16 AWG minimum. Mount the current transformers (CTs) as close as possible to the meter for best accuracy. The following table illustrates the maximum recommended distances for various CT sizes, assuming the connecti
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CHAPTER 3: ELECTRICAL INSTALLATION OPTION 2: ISOLATING A CT CONNECTION REVERSAL USING VOLTAGE READINGS ! Remove potential connections to terminals 6 and 7. Observe the KW reading. It should be positive. ! If negative, reverse the CT wires on terminals 8 and 9. Connect terminal number 6 potential. If KW decreases to about zero, reverse CT wires on terminals 10 and 11. Connect terminal number 7 potential. If KW is one-third of expected reading, reverse CT wires to
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CHAPTER 3: ELECTRICAL INSTALLATION • The meter and terminal module DSP3 are factory calibrated together; the serial numbers are matched on both. The DSP3 input module and the meter base MUST MATCH! • Mismatching of the meter and DSP3 input module will cause inaccurate readings because calibration ratios are stored in the meters memory, not in the DSP3 input module. LIST OF CONNECTION DIAGRAMS NOTE: See phase reversal if a message of CBA appears after installation.
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CHAPTER 3: ELECTRICAL INSTALLATION LINE BACK VIEW A BC 8 11 12 13 9 10 7 6 PORT 5 4 3 + 2L1 POWER - LOAD 1 L II. Three-Phase, Three-Wire Open Delta with two CTs and two PTs Note: Remember to make sure Open Delta bit is programmed in the meter (see section 9.4). LINE BACK VIEW A BC 8 9 10 11 12 13 7 6 PORT 5 4 3 2 L1 + POWER 1 - L LOAD III. Three-Phase, Three-Wire Open Delta with three CTs and two PTs Note: Remember to make sure Open Delta bit is programmed in the meter (see C
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CHAPTER 3: ELECTRICAL INSTALLATION LINE BACK VIEW NABC 8 9 10 11 12 13 7 6 PORT 5 4 3 CONTROL + 2 L1 POWER - 1 L LOAD IV. Three-Phase Four-Wire Wye with Direct Voltage and CTs LINE BACK VIEW NA BC 8 910 11 12 13 7 6 5 PORT 4 3 + 2 L1 POWER - 1 L LOAD V. Three Phase Four-Wire Wye with CT and PTs GE Multilin EPM 5000 series Advanced Power Meters 11
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CHAPTER 3: ELECTRICAL INSTALLATION The EPM 5300P-S The EPM 5300P -S is essentially the 5300P, where through the Programming Mode calculations are changed to reflect either Single Phase or Dual Phase readings. Single PhaseThe connection MUST be identical to Diagram VI. Dual PhaseThe connection MUST be identical to Diagram VII. Program 1 for Single Phase or 2 for Dual Phase in GROUP 0, FUNCTION 7 to remove Three-Phase indicators from view. LINE BACK VIEW A 8 9 10 11 12 13 7
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CHAPTER 3: ELECTRICAL INSTALLATION LINE BACK VIEW B A 8 910 11 12 13 7 6 PORT 5 4 3 2 + L1 POWER - 1 L LOAD VII. Dual-Phase with CTs and PTs LINE BACK VIEW NA BC 8 910 11 12 13 7 6 5 PORT 4 3 + 2 L1 CONTROL POWER - 1 L LOAD VIII. Three-Phase Four-Wire WYE with 2.5 Element Note: The 2.5 element option must be custom configured from the factory. You must pre-order this configuration. GE Multilin EPM 5000 series Advanced Power Meters 1
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CHAPTER 3: ELECTRICAL INSTALLATION 3.7: Relay, Protection and Pulse Output (This section applies only to the -NL or -NL2 Relay Option.) EPM 5300P RELAY OVERVIEW The EPM 5300P offers dry contact relay output capability. The EPM 5200P only offers KYZ pulse outputs and cannot be configured to trip contacts on events. FAIL-SAFE MODE: The EPM 5300P -NL option gives the user an adjustable tripping bandwidth. The user specifies a range over which functions, such as frequency, phase
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CHAPTER 3: ELECTRICAL INSTALLATION 20 N.O. 21 N.C. ALARM #1 22 COM 23 N.O. 24 N.C. ALARM #2 25 COM 26 K 27 Y PULSE OUTPUT 28 Z Figure 3.1: Close-up of the Relay and KYZ pulse output on the rear panel. Note: The relays shown in the figure above are in the NOT energized state. THE INSTRUMENT DETECTS TWO LEVELS OF ALARM FOR THE FOLLOWING FUNCTIONS: " Voltage: AN, BN, CN, AB, BC, CA " Current: A, B, C, N " Over and Reverse Power " Under PF/KVAR Lead or Lag " Over KVA " Voltage Imbal
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CHAPTER 3: ELECTRICAL INSTALLATION Note: Unless otherwise specified, standard KYZ setup for Pulse Output 0 is positive Watt Hour, Pulse Output 1 is negative Watt-Hour, and Pulse Output 2 is VA-hour. See table below for standard rate. Note: With Option R (available only with the EPM 5200P) the setup for Pulse Output 0 is positive Watt-Hour, Pulse output 1 is positive VAR-hour, and Pulse output 2 is negative VAR-hour. The scale factor for Wattage (KW or MW) and Full Scale Decimal Point
