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COMPUTATION OF TECHNICAL POWER LOSS FOR FEEDERS USING LOAD FACTOR AND LOAD LOSS FACTOR TECHNICAL PAPER

Author: Sarang Pande and Prof. Dr. J.G. Ghodekar

ABSTRACT: Power system losses can be divided into two categories: technical losses and non-technical losses. Technical losses are naturally occurring losses (caused by actions internal to the power system) and consist mainly of power dissipation in electrical system components such as transmission lines, power transformers, measurement systems, etc. Technical losses result from the impedance of the network components such as electric lines/ cables, transformers, metering and protecting equipment etc. Non-technical losses, on the other hand, are caused by theft, metering inaccuracies. In this paper a method for energy loss calculation is presented.


INTRODUCTION: System loss is basically arithmetic difference between the units purchased from bulk suppliers and the units billed to consumers in the respective period. The total system loss for any given period is expressed as percentage of total energy input in the system and is computed as follows:

Total distribution loss = (Energy input- Energy sold)/ Energy input/ 100

The total losses comprises of technical loss and commercial loss. The commercial loss mainly consists of losses due to theft of energy and unrecovered billed amount. While, technical losses are the losses occurred in the electrical elements during transportation of energy from the source to consumer end and mainly comprises of ohmic and iron losses. Technical loss is an inevitable consequence of transfer of energy across transmission and distribution networks.

CONCLUSION: A paper demonstrates the capability of Load factor and load loss factor to calculate the power losses of the network. A method for power loss calculation is presented, the methodology is simple to implement. The data used is readily available with the engineers of power Distribution Company. The results obtained can be used for financial loss calculations and can be presented to regulator for tariff determination process.

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