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Energy loss estimation in distribution feeders

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2 Author(s)
Rao, P.S.N. ; Dept. of Electr. Eng., Indian Inst. of Sci., Karnataka, India ; Deekshit, R.

Energy losses in distribution systems are generally estimated rather than measured, because of inadequate metering in these systems and also due to the high cost of data collection. These estimations are generally based on some rules of thumb. This paper presents the results of a joint investigation undertaken in collaboration with a local utility to study this issue. Based on data collected from feeders specially instrumented for this purpose, true losses in some primary and secondary feeders are obtained. These losses are compared with the estimated losses obtained by the methods presently in use. In view of the large discrepancies observed between measured and estimated values, two new schemes for estimating losses in primary and secondary distribution networks have been developed. The measured values are used to highlight the reliability of the new estimation methods.

Published in:

Power Delivery, IEEE Transactions on  (Volume:21 ,  Issue: 3 )