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Power Network AnalysisEnergy Consumption Measurements - Load Curve Analyses
Energy consumption, its chronological course, the proportion of active and reactive power and the subsequent costs are a big issue nowadays. Of great interest are on the one side, savings capacity both for the consumption and the electricity bill and on the other side, the greenhouse gas emissions in combination with the energy consumption. Furthermore, the load curve is interesting as regards the reduction of peak power and load management systems.
Task
Load curve analyses are typically carried out in the main distributors in business enterprises and industrial plants. Transformer stations and the circuits behind them can also be added as typical measurement locations. Of great interest are currents, voltages, active and reactive power – not only the instantaneous value but also as regards their chronological sequence with adjustable averaging interval. Such an analysis usually takes one week to one month.
In order to be able to configure load management systems efficiently, it is not only obligatory to know the total load curve but also the individual branches. Multi-phase measurements on several consumers, in parallel and if possible with only one instrument is therefore the challenge for measurement technology. In transformer stations it is important to identify the distribution of energy on the different circuits in order to optimally adjust the operation and identify shortages.
Solution
Hardware
The product DEWE-571-PNA was especially designed and developed for measurements in distributors and central control rooms. Completely isolated, highest EMC protection and a stable case characterize this instrument.
If more channels are needed then the ELOG model can help. Four voltages and twelve currents at the same time are its specific feature. Besides, also other products in a conventional DEWETRON box and completely installed systems are available.
Software
Our software DEWESoft with its POWER option is the perfect tool for these requirements. Power measurement calculations, several 3~ systems at the same time - even with different frequencies, multi-allocation of voltage, sensor scaling etc. are the necessary features.
PMT as a supplement for report generation is the icing on the cake. Load curves, energy growth curves, sorted out load curve analysis (load curve management), statistic functions and the report generator are the functions offered.
A special energy calculation tool (plug-in) moreover offers the possibility to distinguish between consumed and transmitted energy, inductive and capacitive reactive energy, entire energy, and self-configurable energy channels.
Further Functions
PQ Parameter
Beside the energy data, all power quality parameters such as harmonics, flicker, unbalances, frequencies and disturbances can be measured.
Mathematics Library
You can program arbitrary formula in an online system. The calculation of total power and identification of losses can thus also be done online.
Customers
- Service technician
- Facility management
- Constructors of electrical systems
- Constructors of load management systems
- Research institutions in schools and universities
- Energy consultants and engineering offices
Technologie AG