Most of the industrial machines have reactive power during operation due to which these machines are facing low power factor. One of the important existing public sector industries (where heavy mechanical products are manufactured) of Pakistan is under study, which has a very low power factor i.e. in the range of 0.60 to 0.75. This low power factor not only increase the cost (when there is extra bill and power factor penalty in the rate clause) but also decrease electrical capacity of power distribution system. In the public sector organization, there are five loads in the public sector industry i.e. machine shop load, heat treatment shop load, non-ferrous shop load, gal/forge shop load and fabrication shop. In the proposed thesis, we have utilized capacitor bank in the existing distribution network .We investigated the shunt capacitor banks for Power Factor Correction (PFC). After analysis of the proposed distribution network in Matlab/Simulink software, it was found that using shunt capacitor bank in parallel with load, the power factor increased to 0.95, due to which proposed system and devices efficiency increased. The power losses decreased tremendously. Voltage drop has been reduced. Reduction in size of a conductor and cable reduced cost of the copper. Three different strategies (Central PFC, Regional PFC, Local PFC) are followed in this power factor improvement study and each one is then compared with the previous system.
Muhammad Bilal Abdul Basit Shifaat Ur Rehman Kamil Shaheed and Niaz Ali A Comparative Study of Power Factor Improvement in Pakistani Industry Using Different Strate International Journal of Engineering Works Vol. 6 Issue 12 PP. 479-489 December 2019
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