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PQM IIpower quality meter Power quality metering with waveform capture andhistorical data logging Easy to program and use with keypad and large illuminated40 character display Multiple communication ports for integration with DCS andSCADA systemsDigital MeteringKey BenefitsPower Quality andEnergy Cost Management Supports DNP 3.0 and Modbus protocols Digital and analog I/Os for control and alarms Voltage disturbance recording capability for electricalsag and swell events.Applications Metering of distribution feeders, transformers, generators,capacitor banks and motors Medium and low voltage systems Commercial, industrial, utility Flexible control for demand load shedding, power factor, etc.FeaturesFeaturesMonitoring and MeteringCommunications Front RS232 serial port (1,200 to 19,200 bps)Ia Ib Ic InVa Vb Vc Vab Vbc VcaV I unbalanceTrue PF crest and K factorHz W var VAWh varh VAh W costDemand: A W var VAHarmonic analysis through 63rd with THD and TIFEvent recorder - 150 eventsWaveform captureData logger -98,000 eventsVoltage Disturbance Recorder (VDR) -500 eventsgEnergy Two rear RS485 serial ports with ModBus andDNP 3.0 protocol Ethernet connectivity provided by MultiNet EnerVistaTM software is provided for setup andmonitoring functions External dial-in modem capabilitiesProtection & Control Load shedding Power factor control Pulse input totalizing581

PQM II Power Quality MeterIntroductionEthernet capability Hz W var VAGE Multilin has set a new standard inmetering technology with the introductionof the PQM II. This meter, designed onthe latest industry specifications, providesaccurate and reliable three-phase powermetering with an optional Ethernet andfiber communications module in a smalland modern package. The PQM II canbe used for a variety of applicationsincluding metering of distribution feeders,transformers, generators and motors.With the optional Multinet module, userscan add Ethernet capability to their meter.Multinet is an Ethernet communicationsmodule that allows connection of up to 30ModBus devices, providing ModBus TCP/IPcommunications for these devices overEthernet. This allows connection to FiberOptic LAN and WAN systems for remoteaccess to data on the PQM II. Wh varh VAh W costRobust Metering and Power QualityCapabilities in One PackageThe PQM II provides continuous monitoringof a three-phase system. It providesmetering of current, voltage, real andreactive power, energy use, cost of power,power factor and frequency. Ethernetcommunications are available through theoptional Multinet module.Digital MeteringThe PQM II is an ideal choice whencontinuous monitoring of a three phasesystem is required. It provides metering forcurrent, voltage, real and reactive power,energy use, cost of power, power factorand frequency. Waveform capture andVoltage Disturbance Recorder continuouslymonitors power quality. Programmablesetpoints and 4 assignable output relaysallow control functions to be added forspecific applications.Communications Made EasyIntegrate process, instrumentationand electrical requirements in a plantautomation system by connecting PQM IImeters to a DCS or SCADA system. Meterprovides multiple communication ports thatcan provide data simultaneously to multiplemasters such as SCADA, DCS, BMS etc.Meter supports both ModBus and DNP 3.0protocol. A computer running EnerVistaTMsoftware can change system setpoints,monitor values, status and alarms.Continuous monitoring minimizes processdowntime by immediately identifyingpotential problems due to faults orchanges.Standard FeaturesMeteringPQM II is a true RMS meter with 0.2%accuracy for voltage and currents. ThePQM II provides advanced features formonitoring and metering which include: Ia Ib Ic In Va Vb Vc Vab Vbc Vca V I unbalance True PF crest and K factor Demand: A W var VAKeypad and illuminated 40 characterdis play provides local setpoint settings andmonitoring of values and status.Mounting VersatilityPQM II panel mount with display, offers aneasy local interface. Standard models haveRS485 communications for programmingand monitoring. Users can replaceexpensive additional devices by‑addingthe CONTROL, TRANS DUCER and POWERanalysis options to the PQM II as required.AlarmsAny of the assignable outputs may beused to trigger an alarm for specificapplications. Simple alarm messagesprovide easy urrentneutral currentcurrent unbalanceovervoltageundervoltagephase sequenceoverfrequencyunderfrequencypower factorswitch nbalancemotorsequipment protectionmotors/load transferpumps/equipmentgeneratorsload sheddingcapacitor banksprocess controlIndustry leading software makessetup simpleThe PQM II comes complete withEnerVistaTM GE Multilin's suite of softwaretools for managing the entire lifecycleimplementation of the PQM II. EnerVistaTMcontains all of the tools for setting up andconfiguring your PQM II in minutes viaRS232, RS485, external modem or EthernetLAN.Connect up to 32 ModBus devices to your Ethernet network582

PQM II Power Quality MeterCommunications1a 100 1b 1021 a 11c0 0 110b0 1 0A2M P S1c 100 AMPSIntegrate process, instrumentationand electrical requirements in a plantautomation system by connecting PQM IImeters to a DCS or SCADA system. InitiallyPQM II meters can be used as stand-aloneunits. Open architecture allows connectionto other ModBus compatible deviceson the same communication link. At alater stage PQM II can be integrated in acomplete plant wide system for overallprocess monitoring and control.The standard PQM II comes completewith a rear RS485 and front RS232 port.RS232 port can be used for data collection,printing reports or problem analysis withoutdisturbing the main RS485 communicationinterface at rear. The standard ATIONTX2SELF TESTRX2SELF TESTeeRX2AUX1AUX1MESSAGEAUX2AUX2AUX3Power Quality MeterThe PQM II uses non-volatile flash memoryfor firmware storage. This allows futureproduct upgrades to be loaded viathe serial port. Upgrades can also bedownloaded from the GE Multilin website.Second Rear Comm Port: An additionalrear RS485 comm port is provided forsimultaneous monitoring by process,instrument, electrical or maintenancepersonnel.Control Issue control commands Load all setpoints from a file Change individual setpointsA computer running EnerVistaTM softwarecan change system setpoints, monitorvalues, status and alarms. Continuousmonitoring minimizes process downtimeby immediately identifying potentialproblems due to faults or F MPROGRAMRX1AUX1SIMULATIONTX2AUX2SELF TESTRX2AUX3VALUEENTERMENUESCAPEPower Quality MeterRESET Unbalance alarm for rotating machines Dual level power factor for capacitorbank switching kWh, kvarh and kVAh pulse output forPLC interfaceData Logger (Trending): Trending isuseful as a trouble shooting aid when aproblem is detected. Measured valuescan be selected and plotted with aprogrammable sampling rate to suit thetime interval of interest. The generatedchart recorder screen can be printed or1a 100 1b 1021c 100 AMPSSTATUSMESSAGE Over and undervoltage for generatorsPower Analysis1a 100 1b 1021c 100 AMPSCOMMUNICATE RELAYS Undercurrent alarm for pumps Underfrequency/demand output forload shedding resulting in power costsavingsCOM 2RS485PLANT CONTROLSYSTEMESCAPEPower Quality MeterAnalog Input: PQM II meter can accepttwo analog inputs from external devices.Meter can be programmed to activate acontrol relay based on analog input fromtransducers (temperature, level etc.)Three output relays and four inputs allowmeasured parameters from the standardPQM II to be combined with setpointsand I/Os for control applications. With thecontrol option, three output relays andfour switch inputs are added along withprogrammable set points to makea mini RTU. Output relays can also becontrolled via the communication port orassigned to different setpoints for customprogramming to accommodate manyapplications such as:Digital MeteringThere are a variety of options availableto the user, allowing a range of customconfigurations:Four Analog Outputs: Four isolated analogoutputs can be used to replace eightanalog transducers. Output signals canbe selected from any of the measuredparameters for direct interface to a PLC orother devices.ALARMRESETCommunicationsOptions Read statusSTATUSRESETFuture ExpansionTransducerCOMMUNICATE RELAYSMENUESCAPEPower Quality Meter Measure actual values1a 100 1b 1021c 100 AMPSENTERMENUESCAPE Mini RTU SCADA system componentSTATUSVALUEMESSAGEENTERVALUEAUX3Connect two 4 to 20 mA transducers for process variable measurement and control. DNP 3.0 Level 2 ProtocolCOM 1RS485ALARMALARMPROGRAMRX1PROGRAM RS485 ModBus 1,200 to 19,200‑bpseCOMMUNICATE RELAYSCOMMUNICATE RELAYSALARMTX1ALARMCOMMUNICATE SELF TESTRX2AUX3eMESSAGEVALUEENTERMENUESCAPEPower Quality MeterRESETRedundancy in high security systems is provided by the 2nd RS485 comm port.583

PQM II Power Quality Meterexported to other programs for reportwriting.Harmonic Analysis: Non linear loads suchas variable speed drives, computers andelectronic ballasts can cause harmonicswhich may lead to problems such asnuisance breaker tripping, telephoneinterference, transformer, capacitor ormotor overheating. Harmonic analysiscan be used for fault diagnosis such asdetecting undersized neutral wiring, needfor a harmonic rated transformer, oreffectiveness of harmonic filters. Detailsof the harmonic spectrum are useful andavailable with the power analysis option.Digital MeteringVoltage Disturbance Recorder (VDR)The Voltage Disturbance Recorder (VDR)function adds to the PQM II the abilityto monitor and record Sag and Swelldisturbances. It can record up to500 sag/swell events for all voltagessimultaneously.Waveform Capture: Voltage and currentwaveforms can be captured and displayedon a PC using the EnerVistaTM programsupplied with the PQM II or using thirdparty software. Distorted peaks or notchesfrom SCR switching provide clues for takingcorrective action.Event Recorder: Alarms, setpoint triggers,input and output events can be storedin a 150 event record and time and datestamped by the internal clock. This isuseful for diagnosing problems andsystem activity. Minimum and maximumvalues are also continuously updated andtime stamped.Trace Memory: The PQM II can beconfigured to record a maximum of 36cycles of data on all voltage and currentinputs based on overvoltage, undervoltage,overcurrent or switch input state change.EnerVistaTM SoftwareEnerVistaTM LaunchpadEnerVistaTM Launchpad is a powerfulsoftware package that provides users withall of the setup and support tools neededfor configuring and maintaining GE MultilinProducts. Launchpad allows configurationof devices in real-time by communicatingusing RS232, RS485, Ethernet, or modemconnections.The intuitive user interface makes it simpleto enter setpoints, read metered values,monitor status and evaluate power quality.Powerful troubleshooting features make iteasy to retrieve and view voltage & currentwaveshapes and harmonic analysis.This vital information can help provideearly warning of problems and preventequipment damage or nuisance breakertripping.EnerVista Launchpad PQM II Setup and AnalysisPQM II setup program contains many tools and reports that simplify device configuration and allows viewing of power system events.Simplified IED SetupRecord trends of measured parameters over timeVoltage and current waveforms provide valuable insights into system problems584