Introduction
An increasing number of non-linear loads, such as computers, office equipment and frequency
converters are currently being connected to the public electricity distribution network. Electrical
equipment of this type affects the power quality in the network in a negative way and is frequently
more sensitive to disturbances than older equipment. For these reasons, it has never been more
important to measure and monitor power quality in the electricity distribution network, in order to
detect disturbances before serious and costly faults occur.
PQ Secure system is the result of targeted efforts by Unipower and our customers to create an
advanced, user-friendly and reliable power quality monitoring system.
PQ Secure system consists of three main components; the meter, communication equipment and a
specially designed analysis and evaluation program, PQ Secure. The PQ Secure system uses a
standard database to store all measured data. This means that advanced analyses have become
possible, opening up completely new evaluation opportunities.
In order to simplify the use of your PQ Secure system we have divided the documentation into three
separate manuals:
UP-2210 Hardware installation and configuration manual
describes the installation procedures for the meter and the system’s software
UP-2210 Technical manual
describes how the meters and the system works from a technical viewpoint and which
parameters are stored
PQ Secure SQL User and software installation manual
describes the configuration and use of the system’s software
Copyright © Unipower AB, 2018
Alingsås, Sweden
E-mail: mail@unipower.se
Internet: www.unipower.se
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