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 phenomena 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 | ✓ |