Pampalle Mabuhussain - Institute Of Aeronautical Engineering (original) (raw)
Papers by Pampalle Mabuhussain
International Journal of Creative Research Thoughts (IJCRT), 2017
A distribution feeder is de-energized during the period of maintenance or in bad weather conditio... more A distribution feeder is de-energized during the period of maintenance or in bad weather conditions such as rains, and heavy winds. After the completion of maintenance or clearance of the bad climatic conditions, the same feeder is re-energized again to supply the load. But before re-energizing the feeder it is good practice to check whether the feeder is free of faults or not, because during the maintenance or bad weather conditions there may be a chance of short circuits in the system. This article presents a thyristors based technique to detect the asymmetrical faults, if any that are present in the de-energized side of the distribution feeder. The current wave forms are analyzed in MATLAB computer simulation and the type of the fault that is present in the system is identified.
International Journal of Science and Research (IJSR), 2016
At present, the typical efficiency of PV Modules is in the range of 13 to 14% at module level. Wi... more At present, the typical efficiency of PV Modules is in the range of 13 to 14% at module level. With continuous technological innovations, demand of high efficiency (>15%) PV Modules is increasing. Improving the efficiency of PV modules in the manufacturing process comprises of using high efficiency solar cells, increasing the number of bus bars, using anti-reflection coated glass etc. The efficiency of solar PV cell has increased by using Double Layer Anti Reflective coating from 15% to 17.4%. The efforts are made to increase the solar cell efficiency by changing different parameters like temperature, flow rate of N 2 and O 2 in diffusion process and the efficiency is improved to 18.19% in BHEL EDN Bangalore solar manufacturing plant.
Water resources are essential for satisfying human needs, protecting health, and ensuring food pr... more Water resources are essential for satisfying human needs, protecting health, and ensuring food production, energy and the restoration of ecosystems, as well as for social and economic development and for sustainable development. Approximately 30% of world population lack access to water for drinking, live stock and irrigation. Traditional technology used to access the water from available sources like bore well or open well employ water pump to lift water and store in an overhead tank. These pumps are either powered by conventional grid supply or alternative Diesel Generating (DG) set etc., but higher cost of fuel consumed by DG set and non availability of adequate grid supply have forced scientist and engineers to think of either a supplementary or alternative renewable energy source to produce electric power. Solar photovoltaic energy, one of the potential sources is preferred due to availability of free sun, straight forward technology, low maintenance with reliable operation etc. Though the solar modules (cells) are expensive but efforts are being made to use it not only for power conversion but also for building the exterior wall or covering the roof of the pump farm houses or water pump houses.
Conference Presentations by Pampalle Mabuhussain
Conference Info (ICITEASM), 2018
A distribution feeder is de-energized during the period of maintenance or in bad weather conditio... more A distribution feeder is de-energized during the period of maintenance or in bad weather conditions such as rains, and heavy winds. After the completion of maintenance or clearance of the bad climatic conditions, the same feeder is re-energized again to supply the load. But before re-energizing the feeder it is good practice to check whether the feeder is free of faults or not, because during the maintenance or bad weather conditions there may be a chance of short circuits in the system. If a three phase asymmetrical fault is present in the system it can be easily identified by analyzing the current waveforms, but a three phase symmetrical fault cannot be identified by analyzing the current wave forms alone. Further, if a voltage pulse is applied to the de-energized side either a stalled motor or a capacitor bank can cause large currents like a short circuit fault. Therefore, a fault detection technique based on the harmonic impedance characteristics is proposed. This method is effective for detection of three phase symmetrical fault and to discriminate a stalled motor or a capacitor bank from the fault. MATLAB computer simulation results are provided in this paper to verify the effectiveness of the proposed method.
International Journal of Creative Research Thoughts (IJCRT), 2017
A distribution feeder is de-energized during the period of maintenance or in bad weather conditio... more A distribution feeder is de-energized during the period of maintenance or in bad weather conditions such as rains, and heavy winds. After the completion of maintenance or clearance of the bad climatic conditions, the same feeder is re-energized again to supply the load. But before re-energizing the feeder it is good practice to check whether the feeder is free of faults or not, because during the maintenance or bad weather conditions there may be a chance of short circuits in the system. This article presents a thyristors based technique to detect the asymmetrical faults, if any that are present in the de-energized side of the distribution feeder. The current wave forms are analyzed in MATLAB computer simulation and the type of the fault that is present in the system is identified.
International Journal of Science and Research (IJSR), 2016
At present, the typical efficiency of PV Modules is in the range of 13 to 14% at module level. Wi... more At present, the typical efficiency of PV Modules is in the range of 13 to 14% at module level. With continuous technological innovations, demand of high efficiency (>15%) PV Modules is increasing. Improving the efficiency of PV modules in the manufacturing process comprises of using high efficiency solar cells, increasing the number of bus bars, using anti-reflection coated glass etc. The efficiency of solar PV cell has increased by using Double Layer Anti Reflective coating from 15% to 17.4%. The efforts are made to increase the solar cell efficiency by changing different parameters like temperature, flow rate of N 2 and O 2 in diffusion process and the efficiency is improved to 18.19% in BHEL EDN Bangalore solar manufacturing plant.
Water resources are essential for satisfying human needs, protecting health, and ensuring food pr... more Water resources are essential for satisfying human needs, protecting health, and ensuring food production, energy and the restoration of ecosystems, as well as for social and economic development and for sustainable development. Approximately 30% of world population lack access to water for drinking, live stock and irrigation. Traditional technology used to access the water from available sources like bore well or open well employ water pump to lift water and store in an overhead tank. These pumps are either powered by conventional grid supply or alternative Diesel Generating (DG) set etc., but higher cost of fuel consumed by DG set and non availability of adequate grid supply have forced scientist and engineers to think of either a supplementary or alternative renewable energy source to produce electric power. Solar photovoltaic energy, one of the potential sources is preferred due to availability of free sun, straight forward technology, low maintenance with reliable operation etc. Though the solar modules (cells) are expensive but efforts are being made to use it not only for power conversion but also for building the exterior wall or covering the roof of the pump farm houses or water pump houses.
Conference Info (ICITEASM), 2018
A distribution feeder is de-energized during the period of maintenance or in bad weather conditio... more A distribution feeder is de-energized during the period of maintenance or in bad weather conditions such as rains, and heavy winds. After the completion of maintenance or clearance of the bad climatic conditions, the same feeder is re-energized again to supply the load. But before re-energizing the feeder it is good practice to check whether the feeder is free of faults or not, because during the maintenance or bad weather conditions there may be a chance of short circuits in the system. If a three phase asymmetrical fault is present in the system it can be easily identified by analyzing the current waveforms, but a three phase symmetrical fault cannot be identified by analyzing the current wave forms alone. Further, if a voltage pulse is applied to the de-energized side either a stalled motor or a capacitor bank can cause large currents like a short circuit fault. Therefore, a fault detection technique based on the harmonic impedance characteristics is proposed. This method is effective for detection of three phase symmetrical fault and to discriminate a stalled motor or a capacitor bank from the fault. MATLAB computer simulation results are provided in this paper to verify the effectiveness of the proposed method.