Multilin™ PQM II
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Catalog excerpts

Multilin™ PQM II - 1

Multilin™ PQM II Power Quality & Energy Cost Management Monitoring & Metering The Multilin PQMII provides accurate and reliable three-phase power metering with an optional Ethernet and fiber communications module in a compact horizontal form factor. The PQM II is ideally suited for metering of distribution feeders, transformers, generators, and motors. • Current and Voltage measurements (Ia Ib Ic In, Va Vb Vc Vab Vbc Vca The PQMII provides continuous metering for current, voltage, real and reactive power, energy use, cost of power, power factor and frequency. Waveform capture and voltage disturbance recorder continuously monitors power quality. With programmable setpoints and 4 assignable output relays, control functions and capabilities can be added for specific applications. • True PF Crest and K factor • Power Factor • Power quality metering with waveform capture and historical data logging for detailed energy and disturbance analysis Power Quality • Easy to program and use with keypad and large illuminated, 40 character display • Harmonic analysis through 63rd with THD and TIF • Multiple communication ports for simplified integration with DCS and SCADA systems • Total harmonic distortion • Added network flexibility with support for DNP3.0 and Modbus communications protocols • Disturbance recording and waveform capture • V I unbalance • Hz, W, VAR, VA • Wh, VARh, Vah, W cost • Demand: W VAR VA • Digital and analog I/Os for control and alarm functions • Voltage disturbance recording capability for analysis of electrical sag and swell events, enabling stable, clean power • Flexible control for demand load shedding, and power factor Data Logging • Event Recorder – up to 150 events • Waveform capture • Data Logger – up to 98,000 events • Metering of distribution feeders, transformers, generators, capacitor banks, and motors • Voltage Disturbance Recorder (VDR) – up to 500 events • Suitable for Medium and Low Voltage systems • Commercial, Industrial, or Utility applications Communications • Front RS232 serial port • Two rear RS485 serial ports with Modbus and DNP 3.0 protocol • Ethernet connectivity via MultiNet • External dial-in modem capabilities

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Multilin™ PQM II - 2

PQM II Power Quality Meter Introduction GE Multilin has set a new standard in metering technology with the introduction of the PQM II. This meter, designed on the latest industry specifications, provides accurate and reliable three-phase power metering with an optional Ethernet and fiber communications module in a small and modern package. The PQM II can be used for a variety of applications including metering of distribution feeders, transformers, generators and motors. Robust Metering and Power Quality Capabilities in One Package allows connection of up to 30 ModBus devices, providing...

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Multilin™ PQM II - 3

PQM II Power Quality Meter Integrate process, instrumentation and electrical requirements in a plant automation system by connecting PQM II meters to a DCS or SCADA system. Initially PQM II meters can be used as stand-alone units. Open architecture allows connection to other ModBus® compatible devices on the same communication link. At a later stage PQM II can be integrated in a complete plant wide system for overall process monitoring and control. COMMUNICATE RELAYS COMMUNICATE RELAYS ALARM TX1 SELF TEST SELF TEST MESSAGE ENTER VALUE Power Quality Meter Power Quality Meter Connect two 4 to...

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Multilin™ PQM II - 4

PQM II Power Quality Meter Harmonic Analysis: Non linear loads such as variable speed drives, computers and electronic ballasts can cause harmonics which may lead to problems such as nuisance breaker tripping, telephone interference, transformer, capacitor or motor overheating. Harmonic analysis can be used for fault diagnosis such as detecting undersized neutral wiring, need for a harmonic rated transformer, or effectiveness of harmonic filters. Details of the harmonic spectrum are useful and available with the power analysis option. Voltage Disturbance Recorder (VDR) The Voltage...

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Multilin™ PQM II - 5

PQM II Power Quality Meter and available when needed by automatically checking for and downloading new versions of manuals, applications notes, specifications, and service bulletins. • Plug-&-Play Device Monitoring EnerVista Integrator • System Single-Line Monitoring & Control Viewpoint Monitoring • Automatic Event Retrieval Viewpoint Monitoring is a simple-to-use, full-featured monitoring and data recording software package for small systems. Viewpoint Monitoring provides a complete HMI package that instantly puts critical real-time device data on your PC through pre-configured graphical...

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Multilin™ PQM II - 6

PQM II Power Quality Meter Typical Wiring ALTERNATIVE CT/VT CONNECTIONS PHASE A CT PHASE B CT PHASE C CT VOLTAGE INPUTS Perferrred 4 wire configuration 600V MAX 4 WIRE WYE DIRECT/120 VOLTAGE NO VT LINE A USE HEAVY GAUGE WIRE SAFETY GROUND FILTER GROUND CURRENT INPUTS OUTPUT RELAYS *Note: Accurate only with balanced phase voltages USE SHIELDED TWISTED PAIR WIRE + _ COM VOLTAGE INPUTS VOLTAGE INPUTS SINGLE PHASE DIRECT NO VTs 1) Relay contact state shown with control power not applied. CURRENT INPUTS PROGRAMMABLE SWITCH INPUTS Preferred 3 wire configuration DRY CONTACT SWITCH INPUTS CURRENT...

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Multilin™ PQM II - 7

PQM II Power Quality Meter Technical Specifications MONITORING SAMPLING MODES SAMPLES/INPUTS SAMPLED DURATION CYCLE AT A TIME (CYCLES) 64 Demand Monitoring Measured values: Measurement type: Pickup level: Phase A/B/C/N current (A) 3f real power (kW) 3f reactive power (kvar) 3f apparent power (kVA) Thermal exponential 90% response time (programmable): 5 – 60 min, steps of 1 min Block interval/rolling demand time in interval (programmable): 5 – 60 min, steps of 1 min A: 10 – 7,500 in steps of 1 kW: 0.1 – 6,500.0 in steps of 0.1 kvar: 0.1 – 6,500.0 in steps of 0.1 kVA: 0.1 – 6,500.0 in steps...

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