PQVIEWآ®

PQViewآ® is a multi-component software system developed byآ Electrotek Conceptsآ® andآ EPRIآ® for building and analyzing databases of power, power quality, and energy measurements.آ  PQView integrates data from digital relays, fault recorders, power quality monitors, smart meters,آ and SCADA historians into an open relational database

PQView builds databases with billions of measurements from thousands of monitoring points taken by many different types of meters, including power quality monitors, voltage recorders, in-plant monitors, and digital fault recorders. It can store and analyze information with the measurements about cause and source of triggered events, as well as evaluate the financial impact of events to both a power provider and a power user. It can quickly extract meaningful information from a one megabyte or one terabyte database.

PQView combines powerful features in a user-friendly interface. Measurements can be stored in either Microsoftآ® Access or Microsoft SQL Server. A complete PQView system consists of three main applications: the Power Quality Data Managerآ (PQDM), the Power Quality Data Analyzerآ (PQDA), andآ PQWebآ®.

For information, you can visit: www.pqview.com

 

 

THE INDUSTRY STANDARD FOR POWER QUALITY DATABASE MANAGEMENT & ANALYSIS SOFTWARE

 

 

PQViewآ® Integrates Data from Power Quality Monitors, Digital Relays, Fault Recorders, Smart Meters, and SCADA Databases

 

 

FEATURES

Event Analysis

PQView can be used to display voltage and/or current waveforms from events. آ Derivations from waveform samples include interactive phasor charts, spectrum charts from one- to twelve-cycle FFT and DFT transformations, filtered charts, positive-, negative-, and zero-sequence components, voltage transformations through one to four transformer connections, andآ IEEE P1409آ missing voltage.آ PQDA can quickly build event lists from the millions of events recorded in a measurement database. PQView “measurement events” consist of the waveform and rms samples recorded during voltage sags and swells due to faults and motor starting, and voltage transients due to fuse operations, lightning strikes, load switching, and capacitor and cable energizing. The event lists can be built based on simple queries that only select certain meters for a specific date range. Or, they can be more sophisticated, searching for single-phase sags, three-phase sags, single-phase faults, and three-phase faults.

RMS Voltage Variation Analysis

PQDA can build ITIC Charts, CBEMA Charts, andآ SEMI F47آ Charts, and custom charts that overlay multiple curves. Measurements from each meter can be plotted optionally in a different color. Because PQDA’s rms variation analysis algorithm involves temporal aggregation of multiple events occurring closely in time, users see the event that resulted in a particular voltage magnitude and duration, along with any other events that occurred around the same time at that location.

The rms variation report writer can include monitoring site lists; event lists; SARFI summaries that compute the count or rate of voltage sags; IEC 61000-2-8 DISDIP tables; CBEMA, ITIC, SEMI F47, and timeline scatter plots; and magnitude, duration, and magnitude-duration column charts

Internet Accessibility via PQWeb

PQView can provide data and reports via the Internet or company intranet. Throughآ PQWeb, also available from Electrotek Concepts, a server runs PQView data analysis tasks and allows you to access and view the results using any web browser. With this software, PQView becomes a multi-platform application, able to work across otherwise incompatible operating systems.

Specialized Functionality

  • Radial and network fault location
  • Compliance with international and national power quality standards including EuroNorm EN 50160, the Colombian Energy and Gas Regulatory Commission (CREG 024), and the Norwegian Water Resources and Energy Directorate (NVE 1557)
  • Voltage sag and interruption contract management
  • Power quality event log correlation with SCADA operation logs
  • Load forecasting
  • Wind generation feasibility and assessment

 

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