Published by Dranetz Technologies, Inc., Case Study Distributed Generation (DG) is a method of Demand Response (DR) which is available in select areas of the world. DG has significant implications to both the data center operations and overall profitability. DG is the basic act of relieving the utility grid of desperately needed electrical loads during system economicContinue reading “Data Centers Utilize Distributed Generation to Improve Reliability and Profitability”
Tag Archives: Case Studies
Energy Management for Healthcare Facilities
Published by Dranetz Technologies, Inc., Case Study Energy and demand costs have a direct impact on a company’s bottom line. In fact, the cost of energy is one of the most commonly mismanaged expenses, regardless of a company’s size or the industry represented. In healthcare facilities energy management can be more difficult than any other industry, becauseContinue reading “Energy Management for Healthcare Facilities”
2 Week Energy Survey
Published by Dranetz Technologies, Inc., Case Study Willows Swim Club is a private, member-owned swimming and recreational facility located in central New Jersey. The swim club provides kitchen space to a local restaurant to operate a food concession. Being offered as a service to its membership, there is presently no charge for rent or utilities. However, givenContinue reading “2 Week Energy Survey”
Comparison of Compact Fluorescent to Incandescent Bulbs
Published by Dranetz Technologies, Inc., Case Study With the proliferation of Compact Florescent (CF) lighting, we thought it would be interesting to do a side by side comparison to an incandescent bulb using our new Energy Platform EP1. Not only is it a great demonstration of the capabilities of the EP1 but it’s also an opportunity toContinue reading “Comparison of Compact Fluorescent to Incandescent Bulbs”
Modelling and Analysis of SA-SPV System with Bi-Directional Inverter for Lighting Load
Published by Mustafa Hussein Ibrahim1, Muhammed A Ibrahim2, Salam Ibrahim khather3, University of Mosul (1), Ninevah University (2,3) ORCID: 1. 0000-0002-9950-6524, 2. 0000-0003-4818-1245, 3. 0000-0002-9082-2360 Abstract. The standalone solar photovoltaic system (SA-SPV) is an appealing alternative for carrying out the electrification process in rural regions through packages in lots of countries. The photovoltaic systems areContinue reading “Modelling and Analysis of SA-SPV System with Bi-Directional Inverter for Lighting Load”
Example of Frequency Variations causing SlowScan Recording
Published by Jonny Carlsson, Unipower AB, Case Study: Example of Frequency Variations causing SlowScan Recording, Date: October 25th, 2011. http://www.unipower.se In the following examples a Unipower UP2210 Power Quality meter is measuring SlowScan events. The SlowScan trig level is set to 50Hz +- 0.15Hz with a recorder time of 120 seconds. Example 1:The voltage level isContinue reading “Example of Frequency Variations causing SlowScan Recording”
Container Harbour in Gothenburg
Published by Jonny Carlsson, Unipower AB, Case Study: Container Harbour in Gothenburg, Date: November 8th, 2010. http://www.unipower.se The most important problem was the sags that were caused by the container cranes. The cranes created a lot of high reactive power during the start of the lift procedure. The high currents caused high demand on the transformerContinue reading “Container Harbour in Gothenburg”
Measuring PQ Issues in a Bus Depot Using Unipower HW and Software
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se Introduction This case study explores how advanced power quality measurement technology facilitated the diagnosis of severe power quality disturbances in a bus depot. These disturbances, which neither the bus operator nor the bus manufacturer initially attributed to electrical quality issues, were ultimately traced toContinue reading “Measuring PQ Issues in a Bus Depot Using Unipower HW and Software”
Upstream Frequency Disturbance
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se We have received questions about disturbances in the grid. Do we have any examples? Here is an interesting example showing how disturbances spread through the network. A major frequency disturbance occured in Scandinavia on December 1, 2005. In this comparison we have compared measuring dataContinue reading “Upstream Frequency Disturbance”
Evaluating Direction of Harmonics – Power Harmonics
Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se One important issue is how to trace the source of harmonics. The example below shows harmonic filters connected until 11.00 and there is no voltage distortion as expected. After 11.00 the filters were disconnected due to a fault and voltage harmonics can be seen.Continue reading “Evaluating Direction of Harmonics – Power Harmonics”
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