COVER STORY
FEATURES:
• Control systems and automation
• Flowmeasurement
• Hazardous areas and safety
• Transformers and substations
• Technology of the future
• Energy and enviroFiciency
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2013/11/20 03:25:44PM
I
mpact Energy is the Appointed Distributor in Southern Africa
for Elspec and works jointly on numerous projects and systems
countrywide.
Elspec’s technology simplifies the understanding of the quality of
power itself. It is highly compatible and assists customers enhance
electrical network power quality (PQ).
Throughmany years of direct engineering involvement with clients,
the Elspec team has developed a wide range of application expertise.
The vast experience of Elspec’s Research and Development (R&D)
department extends to in-depth fields of PQ, software and hardware
development.
Elspec’s BLACKBOX PQ analysers, empowered by the patented
PQZIP compression technology, make it possible to store up to a
thousand times more than other typical file formats. In order to pro-
vide a high quality electric power service, it is essential to monitor
the quality of all the electric signals at different locations and along
an electrical power network. The PQZIP technology realises this
capability by facilitating the BLACKBOX
with unique capacities to completely and
accurately store this vast quantity of data
over extended periods of time.
Foremost in the monitoring of PQ is
the identification of power anomalies.The
concept itself is very difficult to understand
or identify as power anomalies encom-
pass all the power problems including
any condition which may be irregular. In
many instances estimates based purely
on guesswork or experience will make
corrective action unjustifiable, or these
actions may be limited as the root cause
of the problem may be unknown. Correct
and precise analysis can only be achieved
by four contributing factors, namely:
• Continuous recordings
• All parameter recordings
• High sampling and recording rate
• Synchronised recordings at multi
points
PQZIP takes the guesswork out of power anomalies. It allows the
BLACKBOX to continuously store the waveformof one or more power
signals, regardless of whether or not an event of interest has been
identified. Set-up occurs at UTC-Time and measurements are col-
lected over eight input channels at a sampling rate of 1 024 samples
per cycle on all three phases simultaneously and the current sampling
rate at 256 per cycle for all three phases simultaneously. Applied at
different points and locations, the unique time synchronization algo-
rithm enables two or more BLACKBOX devices to be synchronised
with one another and provides a complete and comprehensive picture
of the entire grid.
The innovative design of the BLACKBOX device series is a techno-
logical breakthrough that provides the perfect PQ analysis solution.
The built-in capabilities of the series are uniquely adaptable to address
the individual needs and requirements for almost any application.
Enquiries: Impact Energy,Wayne Bromfield.Tel. 0861 357 732 (0861
ELSPEC) or visit: wwwimpactenergy.co.za.
Elspec and Impact Energy
Leaders in innovative power quality solutions
32MVAR Equalizer System at Substation at Emu Downs in Australia.
33
December ‘13
Electricity+Control
