Schneider Electric PM5300 manual Peak demand, Predicted demand example

Page 82

Chapter 9—Measurements and calculations

PowerLogic™ PM5300 series user guide

 

 

Predicted demand example

Beginning

 

 

of interval

15-minute interval

 

 

 

Demand

Partial Interval

 

for last

 

completed

Demand

 

interval

 

 

1:00

1:06

1:15

Predicted demand if load is added during interval; predicted demand increases to reflect increased demand

Predicted demand if no load is added.

Time

Change in Load

Peak demand

The maximum values for the kWD, kVARD, kVAD power, and amps (or peak demand) is maintained in the meter’s non-volatile memory. The peak for each value is the highest average reading since the meter was last reset. The power meter also stores the date and time when the peak demand occurred. In addition to the peak demand, the power meter also stores the coinciding average 3-phase power factor. The average 3- phase power factor is defined as “demand kW/demand kVA” for the peak demand interval.

Related topics

•To reset peak demand values from the power meter display, see “Single resets” on page 100.

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Contents PowerLogic PM5300 Series Power and Energy Meter Page Important Information Please notePage Ence Introduction Chapter Safety Precau TionsHardware Refer Chapter Power quality Chapter AlarmsChapter Multi-tariff feature Chapter Input / OutputUpgrades Chapter Meter resetsChapter Maintenance Chapter Verifying accuraPowerLogic PM5300 series user guide Box Contents Power and Energy Meter HardwareParts and Accessories IntroductionPowerLogic PM5300 user guide Safety Precautions Before You BeginPowerLogic PM5300 series user guide PM5300 Series Models, Features and Options Models, Features and OptionsFunctions and Characteristics Functions and CharacteristicsDemand Values Power Quality MeasurementsEnergy Values Other MeasurementsTechnical Specifications Electrical CharacteristicsSafety Mechanical CharacteristicsEnvironmental Characteristics Electromagnetic CompatibilityDimension Safety precautionsHuman Machine Interface Meter mounting Mounting the PM5300Meter wiring Serial No Description Specification Screw driver type M3Recommended cables Make Part code DescriptionWiring Diagrams Current Transformer Voltage disconnect switch Power systemSymbol Description Direct connect voltage limitsMeter setting Power system setup parameters Power system descriptionSymbol Current input protection Voltage and current input wiringVoltage input protection Direct connect maximumBalanced system considerations Control power wiringCommunications Serial communicationsRS-485 cable RS-485 wiringRS-485 network configuration RS-485 maximum cable lengthDigital outputs Ethernet configurationEthernet wiring EthernetETHERNET SwitchSWITCH/ hub/ HUB Ethernet communicationsDigital output connections Status inputsRelay outputs Status input connectionsRelay output connections Alarm / energy pulsing LED modes Front panel display and meter setupLED indicators Heartbeat / communications LEDMeter screen menus Notification iconsRelated topics Menu tree PM5300 display screen menusConfiguring the basic setup parameters Front panel meter setupMeter setup screen navigation Basic setup screenBasic setup parameters Basic setup menu treeParameter Values Description Serial communications setup menu tree Communications setupSetting up serial communications Communication portsCommunications setup parameters Setting up Ethernet communicationsEthernet communications setup menu tree Ethernet port settings HMI settingsSetting up the display Display setup menu treeDisplay setup parameters Setting up the screen passwordsSetting up regional settings Regional settings menu treePassword setup menu tree Lost passwordPassword setup parameters Clock setup parameters Setting the clock Advanced setupClock setup menu tree Advanced setup menu treeAlarm / energy pulsing LED settings menu tree Setting up the alarm / energy pulsing LEDAdvanced setup parameters LED setup parameterDemand setup menu tree Input / output setup Demand setupPower or current demand setup parameters Alarms setup Multi-tariff setupRemote Meter Setup Meter data display screens Viewing Meter DataViewing meter data from the front panel Displaying data screensHarm Power PQSVolts U-V Energy EUnbal AlarmHz F MnMxTimer Using ION Setup to view or modify configuration dataUsing software to view meter data MaintStatus input applications Input / OutputStatus Input, Digital Output Ports and Relay Output Ports Navigate to I/O configuration I/O Setup Status input setupConfiguring status inputs using ION Setup Status input setup parameters available through ION SetupConfiguring status inputs using the front panel Status input setup menu treeDigital output applications Digital output setupDigital output wiring example Digital output application exampleConfiguring digital outputs using ION Setup Digital output setup parameters available through ION SetupConfiguring digital outputs using the front panel Digital output setup menu treeOn Time s This defines the pulse width on time in seconds Parameter Values Description Relay output setup parameters available through ION Setup Relay output setupConfiguring relay outputs using ION Setup Relay output applicationsSet to External or Alarm. The relay output Configuring relay outputs using the front panel Relay output setup menu treeAlarm / energy pulsing LED setup Navigate to I/O configuration Energy Pulsing Disabled turns off the LED completely About Alarms AlarmsSecond Alarms List of Standard 1-Second Over/Under Alarms AlarmDigital Alarms How the power meter handles setpoint-driven alarmsAlarm Priorities Alarm SetupUnary Alarms Using an Alarm to Control a Relay and Digital OutputSetting Up 1-Second Alarms Setting Up 1-Second Alarms Setting Up Unary Alarms Setting Up Digital Alarms Setting Up Digital Alarms Viewing Alarm Activity and History Viewing Active Alarms and Alarm CountersViewing Unacknowledged Alarms and the Alarm History Log PowerLogic PM5300 series user guide Alarms Data Logs Data LogsDescription Number of Registers Data Type Register Number Alarm Log Storage Alarm LogMemory Allocation for Log Files Real-time readings Power factorMeasurements and calculations EnergyIEC mode Power factor min/max conventionPower factor sign convention Power factor minimum and maximumDemand Power demand calculation methodsIeee mode Block interval demandSynchronized demand Block interval demand exampleThermal demand Current demandPredicted demand Thermal demand examplePeak demand Predicted demand exampleMulti-tariff feature example Multi-tariff featureMulti-tariff feature overview Time format Command mode overviewTime of day mode overview Front panel date and time formatTariff creation method Example tariff configurations for a four-tariff systemConfiguration 1 four tariffs with weekdays and weekends Tariff Type Start date End date Start time End timeConfiguration 2 2 tariff assignment using 2 digital inputs Input mode overviewConfiguration 1 2 tariff assignment using 2 digital inputs1 Digital input requirements for required number of tariffsTariff setup menu tree Configuring tariffs using the front panelConfiguring time of day mode tariffs using the front panel Time of day mode tariff setupConfiguring input mode tariffs using the front panel Harmonics overview Power qualityHarmonic content calculations Total Harmonic Distortion and Total Demand DistortionTHD and thd calculations Viewing harmonics using the front panelDisplaying harmonics data TDD calculationViewing TDD Viewing THD/thd using the front panelPower Quality display screen Example 13th to 21st harmonics for line-to-neutral voltageRelated topics Verifying accuracy Testing overviewAccuracy test requirements Location of energy pulsing LED Reference device or energy standardEnergy pulsing PM5300Verifying accuracy test Percent error calculation Calculating total powerCalculating the number of required pulses Energy pulsing considerations Total power limit for alarm / energy LEDTotal power limit for digital output VT and CT considerationsWatt-hour test points example Typical sources of test errorsTest points Var-hour test points exampleGlobal resets Meter resetsFront panel meter reset screens Reset menu treeAlarm counter options Single resetsSingle reset options Alarm counter Option DescriptionPowerLogic PM5300 series user guideChapter 13-Meter resets 102 Power Meter Memory Maintenance and UpgradesPassword Recovery Identifying the Firmware Version, Model, and Serial NumberDownloading Firmware Control PowerAdditional Meter Status Information MeterHeartbeat/Comms LED Troubleshooting105 Getting Technical Support Register List TroubleshootingPotential Problem Possible Cause Possible Solution 106MID overview Specifications relevant to MIDMID Compliance MID compliance for the meterInstallation and wiring MID ComplianceDefault PM5331/PM5341 display screen Installing the terminal coversPM5331/PM5341 default screen Location of terminal coversLock-protected setup parameters MID-protected setup parametersLock-protected setup parameters Meter firmware versionSetting up the PM5331/PM5341 Initializing the meterNavigate to Maint Setup Meter Lock Setting up lock passwordLocking or unlocking the meter Terms Glossary113 114 Abbreviations 115116 117 118 Page Schneider Electric 35, rue Joseph Monier CS
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