PQView User Group

Feature Comparison of PQView, PQWeb, and WebPQView

Basic Functionality

The following table is a general comparison of the functions provided by PQView, and PQWeb.

Data Store Format PQView PQWeb WebPQView
Creates PQView databases in Microsoft Access file format    
Includes scripts to build new PQView databases hosted by Microsoft SQL Server    
Stores measurements in PQView databases in Microsoft Access file format    
Stores measurements in PQView databases hosted by Microsoft SQL Server    
Imports measurements from data stores manually    
Imports measurements from data stores automatically via schedules    
Sends e-mail alerts automatically    
Provides interactive charts in user interface    
Allows user to customize chart captions from defaults to alternate text in any language  
Displays meter locations and measurement values on maps using ESRI data files    
Provides analysis of data logs
Provides analysis of power quality event measurements
Provides phasor analysis of steady-state snapshot measurements    
Provides harmonic analysis of steady-state snapshot measurements    
Provides custom analysis reports
Displays monitor availability reports  
Provides system event analysis tools and reports    
Provides load growth estimation tools    
Provides optional fault analysis and location tools    
Allows user to rescale voltage, current, power, or energy measurements to correct transducer problems    
Allows user to adjust time stamps to correct clock problems    
Derives indices for steady-state analysis    
Derives SARFI indices    
Correlates power quality and relay events with SCADA operations events    
Derives indices for transient overvoltages    

Data Sources

The following table compares the data sources that can be imported by PQView Enterprise and PQView Professional.

Data Store Format PQView
IEEE® Std 1159.3 PQDIF Files
IEEE® Std 37.111 COMTRADE Files
PQView® Database
PQView® Value Log Text Files
BTECH® Battery Validation Manager Database
Cooper/CYME CYMDIST Network and Equipment Database
Dranetz® ESS/InfoNode® Server
Dranetz® PASS® Database or PASS Archive
Dranetz® PES PQPager® 3100 Database
Dranetz® PES PQNode® Database
Dranetz® DDB File from Power Xplorer, PowerGuide, PowerVisa, or Energy Platform
EDMI Multidrive Database
Electro Industries/General Electric® Communicator Log
Fluke®/RPM PAS Omega Database
Fluke®/RPM Scenario Database
Gossen Metrawatt MAVOSYS
Gossen Metrawatt MAVOWATT
GridSense PowerView CSV Folder
HIOKI Hi-View Pro Text Files
Landis+Gyr® MAXsys PRN Text File Folder
NOAA Daily Geomagnetic Data
OSISoft® PI System
Qualitrol® LEM Instruments QIS Database
SATEC PAS Database
Schweitzer Engineering Laboratories® (SEL) EVE Folder
Schneider Electric® PEGASYS Database
Schneider Electric® ION Enterprise® Database
Schneider Electric® StruxureWare® Database
Siemens® SIMEAS® Text File Folder
Silver Spring Networks Export Folder
SoftSwitching® I-Grid® Web Site
Unipower PQ Secure Database
ENTSO-E System Loads
ERCOT System Loads
IESO System Loads
ISO-NE System Loads
NYISO System Loads
PJM System Loads
Custom Database

Value Log Analysis

The following table is a comparison of the functions provided by PQView and PQWeb for analyzing value logs. Value logs are used for instantaneous values or statistical values of any value. Value logs are frequently used to capture rms voltage, rms current, total harmonic distortion (THD), voltage fluctuations such as Pst or Plt, power, energy, temperature, and more.

Functionality PQView PQWeb WebPQView
Creates trend charts for any value log
Creates histogram charts for any value log
Creates profile charts for any value log  
Creates summary statistical tables from value logs
Optionally filters data in trends, histograms, and profile charts by min/max value, by hour, by day, and/or by month    
Optionally combines measurement using temporal aggregation  
Offers zoom-in and zoom-out functionality in charts    
Creates trend charts that interactively link to event charts    
Creates trend charts that sum or average data log subsets    

PQ Event Analysis

The following table is a comparison of the functions provided by PQView and PQWeb for analyzing power quality events. Some of the power quality event phenonema defined in IEEE Std. 1159 includes short duration rms variations such as voltage sags, voltage swells, and momentary interruptions. Long duration events include undervoltages, overvoltages, and sustained interruptions. Many power quality monitors also capture events for oscillatory transients such as capacitor switching or fuse operations. Other power quality monitors capture impulsive transients due to switching or lightning transients.

Functionality PQView PQWeb WebPQView
Builds event lists of rms voltage variation events, transient events, and frequency events
Filters event lists by event type
Filters event lists by voltage magnitude
Displays event charts showing waveform samples
Displays event charts showing frequency samples for frequency variation events    
Displays event charts showing rms samples for rms voltage variation events
Derives rms values from waveform samples if not recorded by meter    
Derives line-line voltage from line-neutral voltage if not provided by meter    
Derives residual voltage and current from line-neutral voltage if not provided by meter    
Derives net voltage and current from line-neutral voltage if not provided by meter    
Derives positive-sequence, negative-sequence, and zero-sequence components from voltage and current waveform samples    
Displays voltage and current phasor charts with voltage, current, impedance, and power phasor tables    
Displays harmonic spectrum charts derived from voltage and current waveform samples    
Displays derived real, reactive, and apparent power derived from waveform samples or rms values    
Displays derived resistance, reactance, and impedance    
Displays characteristic voltage derived from waveform samples    
Displays sag energy and swell energy derived from waveform samples    
Displays derived missing voltage, delta current, delta power, delta energy    
Displays frequency values derived from voltage waveform samples    
Exports to IEEE COMTRADE format    
Exports to IEEE PQDIF format  
Exports chart images to JPEG, bitmap, SVG, WMF, and EMF formats    
Exports chart data to CSV, XML, Microsoft Excel, and Waveform Audio File formats    
Exports to Microsoft Outlook    
Exports to TOP, The Output Processor  
Displays meter locations in Google Maps    
Creates Microsoft Word summary reports    

Fault Identification and Fault Location

The following table is a comparison of the functions provided by PQView for fault identification and fault location. This functionality is provided by PQView for desktop analysis and by WebPQView for intranet or Internet analysis.

Functionality PQView PQWeb WebPQView
Identify Single-Phase Faults/Identify Ground Faults from Waveform Samples    
Identify Line-Line Faults from Waveform Samples    
Identify Start and End of Faults from Waveform Samples    
Identify Subcycle Faults from Waveform Samples    
Identify Transformer Inrush Current from Waveform Samples    
Estimate Fault Location  
Estimated Reactance to Fault  
Send E-Mail Notification for Fault Events    
Correlate Fault Events with SCADA Operation Events    
Build Fault Event Lists  
Display Estimated Fault Location on One-Line Diagram  
Create Fault Analysis Charts and Summaries  
Display digital channel status from relay with waveform events    

RMS Voltage Variation Analysis

The following table is a comparison of the functions provided by PQView and PQWeb for analyzing rms voltage variation events. An rms variation is frequently a voltage sag (voltage dip) caused by an electric system fault or a voltage interruption caused by a protective device such as a circuit breaker, line recloser, sectionalizer, or fuse.

Functionality PQView PQWeb WebPQView
Provides rms voltage variation analysis
Builds rms voltage variation event lists
Filters event list by voltage magnitude and event duration
Offers temporal aggregation option at analysis time to combine rms variations that occur close in time  
Creates CBEMA Charts, ITIC Charts, and SEMI F47 Charts  
Builds SARFI summary tables    
Builds SARFI trends by month    
Builds SARFI trends by year    
Creates rms voltage variation time line charts    
Creates rms voltage variation magnitude-duration charts    
Creates CBEMA Charts, ITIC Charts, and SEMI F47 Charts by Meter    
Creates CBEMA Charts, ITIC Charts, and SEMI F47 Charts by Phase, by Phase Count, and by Event ID    
Creates CBEMA Charts, ITIC Charts, and SEMI F47 Charts by Cause, by Source, and by Equipment Name    
Creates histogram of voltage sag magnitude, voltage swell magnitude, and rms variation duration    
Creates contour chart showing cumulative event count or rate by voltage sag magnitude and duration    
Creates rms variation magnitude-duration column chart    
Creates rms voltage variation summary report using Microsoft Word    

Regulatory Reporting

The following table is a comparison of the functions provided by PQView and PQWeb for creating reports that summarize compliance or requirements with national or international regulations or standards.

Functionality PQView PQWeb WebPQView
Derives EuroNorm EN 50160 compliance statistics    
Derives Norwegian NVE 1557 compliance statistics    
Writes Colombian CREG 024 reports