Specifications

August 2010
G4500 BLACKBOX PORTABLE OPERATIONAL MANUAL
60
Website | Elspec
Power Quality Section
The BLACKBOX Portable contains a power quality compliance engine that en-
ables real-time evaluation of power quality according to standards such as
EN50160.
Power quality compliance or in short PQ Compliance is a set of electrically
measured parameters which are typically calculated based on some pre-defined
intervals or event triggers and are evaluated over a large observation window.
For most of the PQ parameters, the observation window is one week, which
means the displayed online information refers to the previous week. However,
using ELSPEC's PQSCADA and Investigator applications, all time intervals are
able to be observed.
A PQ parameter is typically based on a power quality event. For example the
DIP PQ parameter is based on counting DIP events over some observation pe-
riod.
Different national standards vary in the way a specific PQ parameter is being
measured or observed. The PQ Engine also supports a user-customizable mode
in which all compliance parameters can be self-edited and modified by a user in
order to meet new conditions, rules, measuring intervals and even different ob-
servation periods.
The Power Quality section in the WEB interface is used to control and view
power quality measurement and compliance information computed by the PQ
Engine.
The Compliance Summary Page This page enables you to select the specific
compliance standard to be evaluated by the unit's internal compliance engine.
This page further contains on-line information and compliance status.