Identification of Power Losses in High and Low Tension Distribution Systems in Pakistan
Power Loss in the utility distribution system is the key factor to identify the reliability and economy of Distribution Companies (DISCOs). The power loss depicts the state of electric meter evaluation systems along with the efficacy of the distribution network. Since the Pakistan is a developing country, and due to the lack of load management system, it is facing daunting load shedding and frequent power interruptions. Even though the power theft is a key factor to this loss but the technical losses caused by traditional distribution networks and their unplanned operations contribute significantly to power losses.
This research work accounts for the power losses in the distribution network of Sukkur Electric Power Company (SEPCO) distribution network due to significant load imbalance and their mitigation methods. Since the mitigation of power loss in the distribution network is a complex issue, which requires an extensive qualified personnel and huge expenditure. But this research presents more economic method for power loss reduction called load balancing method. After Analyzing SEPCO distribution network, it has been observed that less attention was paid to phase loading problems. In order to reduce the methodological power loss by load balancing, some calculating algorithms are used to find out the load imbalance. Along with SEPCO network, it is recommended that load balancing is also necessary for all the other distribution companies in Pakistan. It is observed via the calculations performed in this research that the power loss on the low tension side was reduced from 283.89 kW to 222.29 kW and 5.89 kW on high tension side of one of the SEPCO distribution networks. The results obtained in this paper revealed that by implementing the proposed method, a significant amount of power loss can be avoided. This subsequently increases the system efficiency and proves to be an economical solution for both the parties i.e. the user and the supplier.