WinPQ was developed in collaboration with several power supply companies with the goal
of creating an easy-to-use and adaptable solution for the evaluation of power quality parameters
in energy distribution networks
The system is suitable for low, medium and high voltage networks.
Electrical grids are currently undergoing radical change. Active power electronics as used in switching power supplies and inverters are ubiquitous. To achieve CO2 reduction goals, small, renewable energy generators are being installed everywhere. Big, conventional power plants are disappearing.
Phenomena such as backfeeding, equipment overloads, voltage spikes at feed-in points and asymmetries are part of day-to-day business. This is a problem for highly optimized data centres and industrial controls that are sensitive to short dips in supply, harmonics and transient events. Even the stability of the grid is vulnerable.
With the combination of the Class A-certified PQSys family of measuring devices and the fully automated WinPQ server solution, A. Eberle offers a comprehensive voltage quality system that will stand up in court. It enables users to document, evaluate and prove the quality of the voltage at any time. Faults can be detected, the source determined and the cause remedied early.
All of the installed fault recorders and mobile grid analyzers from A. Eberle are supported and can be connected across grid levels, in large numbers, to an SQL database server. Communication over SCADA protocols, such as IEC 61850, Ethernet, 3G/4G and analogue dial-up modems is possible.
The WinPQ software is at its absolute best when it comes to controlling large amounts of data. Automated reporting assistants automatically explore the database and report only the things you need to see. You can receive standards reports and alerts by email or in standard formats such as Comtrade, PQDiff or as a PDF document on the hard disk. It’s that easy!
Our fine-tuned hardware and software solution enables you to keep an eye on the voltage quality at all times.
"WinPQ System solution for all installed fault recorders, power quality monitoring devices and mobile grid analyzer by A. Eberle
Continuous power quality monitoring – from high voltage to the end customer as a system. Intuitive despite a large amount of data."
The philosophy behind the WinPQ system: An 'All-in-one' system overview
The WinPQ client-server software with
database is an intelligent system solution that
automatically monitors faults and the grid
quality in parallel across several measuring
devices. Different device versions are available
for different requirements and voltage levels.
The evaluation software supports all installed
A. Eberle fault recorders. TCP/IP, fibre optics,
RS-232, 3G, 4G and analogue modems can
be used to communicate with the devices.
In addition, all of the data measured by the
mobile grid analyzers can be imported into
the database and correlated with the data
on the installed devices.
The database is generally installed on a
server to guarantee it’s always running. The
database supports any number of concurrent
The system's key features include:
● All devices are read concurrently. This
assures the system's fast response time.
● Automatic error log reporting and auto
matic creation of power quality reports,
also for the control room.
● User-friendly software that enables you to
easily monitor the many devices and large
amount of data.
WinPQ can be used with the following
databases: MySQL, Maria DB, MS SQL
and Oracle DB.
A click of the mouse is all that is needed
to generate an EN 50160 report: with
millions of records across the whole
measuring area. If a measurement is
exceeded, the time behaviour (cyclical
data) can be directly displayed.
Permanently archive several years of
cyclical data timing diagrams.
Direct link with sampling values if
thresholds are exceeded.
Highly accurate analysis across the 10 ms
TRMS logs and sampling values with up
to 40.95 kHz.
The principle: Top-down analysis
The WinPQ database analysis software enables
you to easily create abstract views of many
measurands that have no time correlation:
from the measured data's timing diagrams
to highly accurate error logs.
The devices have several fault recorders with
different sampling rates with different levels of
detail and recording lengths. There is an extensive
menu of trigger criteria for recorders. The
duration and pre-event time are user definable
The devices have the capability of adjusting
the recording length independently of the
fault duration on the grid.
The WinPQ system can display several error
logs from different installed and mobile grid
analyzers in a diagram. Messages, PQ events
and binary signals can also be displayed and
used in other calculations and correlations
with measuring data.
½ period recorder TRMS average values of all voltages (phase-to-phase
and phase-to-ground), currents, active power, reactive power, apparent
power and frequency
Power quality report and statistics
WinPQ offers an extremely wide range of
power quality reports and statistics. There
are detailed reports per measuring point and
overview reports for a group of devices or
voltage level or grid area.
The devices automatically send faults to the
database as soon as they occur. PDF documents
are created automatically and can be
sent to email addresses or printers.
The system automatically archives power quality
reports and long-term statistics. 3D graphics help
keep track of the many devices in a grid area
or voltage level.
A separate flow plan can be created for each
measuring point: Which fault from which event
size should be reported to whom?
Alerts can be reported optically, acoustically or
by email and text message. Acknowledge functions,
pop-up windows and sound are available
to report alerts.
3D and 4D graphics
3D and 4D graphics provide an overview of many stations across several measured values
Analysis of the load profiles of several stations across arbitrary periods. Clicking on a bar
opens the timing diagram for this situation or the cumulative frequency analysis
The number of grid events in a voltage level or device group can be displayed over an
arbitrary period of time in a four-dimensional overview report.
View of all voltage or current harmonics 2nd to 50th. Harmonics and frequency bands
2 kHz to 9 kHz in accordance with IEC 61000-4-7 is possible. All measured values are
displayed with the corresponding threshold for the specified standard.
Voltage and current harmonics reports in accordance with IEC 61000-4-7 up to 9 kHz
The 'Maps' option displays all of the stations on the map by their geographic coordinates. The maps are available
offline. An internet connection is not needed.
Many of the available measured values can be displayed graphically on the map as coloured bars. The graphics or charts
can display the current voltage level, load flow and power quality reserves.