PQBlog

Some Issues of Increasing the Efficiency of Electric Machines

Published by Samira KHANAHMEDOVA, Azerbaijan State Oil and Industry UniversityORCID: 0000-0001-8862-1570 Abstract. The article discusses ways to reduce losses to increase efficiency in electric machines. The amount of energy loss is determined by the efficiency coefficient. The issues of changing the size of an electric machine under electromagnetic loads with a constant power source andContinue reading “Some Issues of Increasing the Efficiency of Electric Machines”

Damaged X-ray Equipment at Major Health Care Center

Published by Dranetz Technologies, Inc. Website: Dranetz.com Severe power quality problems damaged X-ray equipment, costing $100,000 in one instance. The source of the problem was the switch over from utility to generator power, during regular testing and emergency situations. Figure 1 (below) identified the cause of the problem, an out-of-phase transfer, captured by On Power with aContinue reading “Damaged X-ray Equipment at Major Health Care Center”

Application Of Optical Current Sensors in Electric Substations

Published by Ilham RAHIMLI1, Aliashraf BAKHTIYAROV2, Gulshan ABDULLAYEVA3, Sona RZAYEVA4. Azerbaijan State Oil and Industry University ORCID: 1. 0009-0006-1976-4475; 3. 0000-0003-0168-9623; 4. 0000-0001-7086-9519 Abstract. Despite the fact that current transformers have been used for many years in certain sections of the electrical network, in power supply, to power the circuits of an electrical measuring installation,Continue reading “Application Of Optical Current Sensors in Electric Substations”

Testing of a Micro Hydro Power Plant Using a Cross-Flow Type Turbine

Published by Sri SUWASTI, Musrady MULYADI, Yiyin KLISTAFANI, Muhammad Ruswandi DJALAL, State Polytechnic of Ujung Pandang Abstract: The implementation of Micro Hydro Power Plants (MHPP) serves as a crucial initiative to address the uneven distribution of electrical energy in remote areas across Indonesia. Before the permanent installation of an MHPP, field testing is imperative, involvingContinue reading “Testing of a Micro Hydro Power Plant Using a Cross-Flow Type Turbine”

PQ Terms & Definitions

Published by Dranetz Technologies, Inc. Website: Dranetz.com PU (Per Unit) Explained PU stands for Per Unit. It is a term that electric utility engineers frequently use, and it was incorporated into IEEE 1159. PU is the percentage formed by dividing the actual voltage by the nominal. For example, a sag to 0.8 pu on a 480V circuitContinue reading “PQ Terms & Definitions”

Modern Methods Of Evaluating the Technical Condition of Power Transformers

Published by Tural Aliyev1, Aydin Aliyev2,Azerbaijan State Oil and İndustry University, Baku, Azerbaijan ORCID: 1. 0000-0003-0751-3952, 2. 0000-0002-1631-0543 Abstract. This article aims to shed light on the critical aspects of power transformer assessment and proposes avenues for improvement in current methodologies, emphasizing the need for a more comprehensive and integrated approach to ensure the reliabilityContinue reading “Modern Methods Of Evaluating the Technical Condition of Power Transformers”

Considerations for Energy Saving and Street Lighting Lamps Replacement in Jordanian Roads

Published by Adnan M Al-Smadi, Tariq M Alrjoub, Yarmouk University, Hijjawi Faculty for Engineering Technology, Jordan ORCID:000-0003-3796-6805X Abstract. For the last several years, the demand for electricity in Jordan has increased. This increase is due to the change of climate conditions and high temperatures, which led to the increase of the use of air conditioningContinue reading “Considerations for Energy Saving and Street Lighting Lamps Replacement in Jordanian Roads”

Efficient High Voltage Gain Simplified DC-DC Converter for Enhanced Solar Power Harvesting

Published by Shanmugavadivu Natarajan, Department of Electrical and Electronics Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, 602117, India Abstract. This study introduces a novel transformerless high voltage gain DC-DC converter for solar power. It combines a two-inductor boost converter, voltage multiplier, and switched capacitor cells, achieving a remarkable high voltage gain with 98.24% efficiency. AContinue reading “Efficient High Voltage Gain Simplified DC-DC Converter for Enhanced Solar Power Harvesting”

Blockchain Technology in Electromobility and Electrification of Transport

Published by Anna ZIELIŃSKA, AGH University of Science and Technology, Faculty of Management Abstract: The article describes the possibilities of using blockchain technology in the electromobility sector and in various areas of the autonomous vehicle sector. The aim of the article is to present the dynamics of the development of blockchain technology in markets suchContinue reading “Blockchain Technology in Electromobility and Electrification of Transport”

Research of Some Problems of Electrical Safety

Published by Elshad Safiyev1, Saida Kerimova2, Kubra Mukhtarova3, Azerbaijan State Oil and Industry University ORCID: 1. 0009-0005-4971-1721 Abstract. The article describes in detail the causes of electric danger, the types of its effects on the human body, and ways to protect against the danger. Schemes of connecting people to single-phase and two-phase current circuits andContinue reading “Research of Some Problems of Electrical Safety”