Published by Mark KLETSEL1, Nariman KABDUALIYEV2, Bauyrzhan MASHRAPOV2, Alexander NEFTISSOV2,National Research Tomsk Polytechnic University (1), Pavlodar State University (2) doi:10.12915/pe.2014.01.21 Abstract. A phase comparison scheme of protection of busbar on the reed switches fixed connections near conductors extending from these busbars which does not require current transformers has been studied. The article provides an analysisContinue reading “Protection of Busbar Based on Reed Switches”
Tag Archives: Safety/Protection
Overhead Line Fault Section Positioning System Based on Wireless Sensor Network
Published by Ai-hua Dong, Xinlin Geng, Yi Yang, Ying Su, Mengyao Li, Henan Polytechnic University Abstract. This paper introduces overhead line fault detection and location system as the core of industrial control computer. The combination of software and hardware, the methods of current rate of change and zero current detection are used, and so theContinue reading “Overhead Line Fault Section Positioning System Based on Wireless Sensor Network”
Electric Shock Hazard Limitation in Water During Lightning Strike
Published by Jarosław WIATER, Białystok University of Technology Abstract: Swimming during a thunderstorm is one of the most dangerous things that can be done. Lightning regularly strikes water, and since water conducts electricity, a nearby lightning strike could kill or injure human being. This paper will present simulation results of scalar potential distribution in waterContinue reading “Electric Shock Hazard Limitation in Water During Lightning Strike”
Hazardous Step Voltage Nearby Pole Exited by High Voltage Surge
Published by Jarosław WIATER, Politechnika Białostocka, Wydział Elektryczny, Katedra Telekomunikacji i Aparatury Elektronicznej Abstract. This paper presents a ground potential rise (GPR) and voltage difference measurement results. Measurements were made for a model of a pole installed in homogeneous ground. The test stand was built in high voltage lab. It allows safe high voltage testingContinue reading “Hazardous Step Voltage Nearby Pole Exited by High Voltage Surge”
Lightning Currents in Low-Voltage Power Systems
Published by Andrzej SOWA, Bialystok University of Technology, Faculty of Electrical Engineering Abstract: Correctness estimation of lightning protection solutions require definition of lightning current distribution in conductive installations entering the structure during direct strike to lightning protection system of this structure. It concerns particularly this part of lightning current, which flows in electric installation. InformationContinue reading “Lightning Currents in Low-Voltage Power Systems”
Energy Efficient Distribution Transformers
Published by Mariusz NAJGEBAUER, Krzysztof CHWASTEK, Jan SZCZYGŁOWSKI,Institute of Power Engineering, Częstochowa University of Technology Abstract. The paper presented the possibilities of improvement in properties of electric distribution transformers through the use of new soft magnetic materials, mainly amorphous alloys, as transformer cores. The properties of amorphous were compared to conventional electrical steel sheets. EconomicContinue reading “Energy Efficient Distribution Transformers”
Stolen Electricity or Gas Meter?
Published by CallMePower | Selectra LLC Has your electricity or gas meter been stolen? Find out here what to do if your meter has been snitched. Why are meters stolen? Electric meters contain electronic components which can be sold on the black market. Copper, an expensive metal with high conductivity, is usually present in electricityContinue reading “Stolen Electricity or Gas Meter?”
Wire Wrapping for Low Current Monitoring
Published by Veris Industries, Veris Application Note VN35 – Wire Wrapping for Low Current Monitoring. The information provided herein is intended to supplement the knowledge required of an electrician trained in high voltage installations. There is no intent to foresee all possible variables in individual situations, nor to provide all training needed to perform theseContinue reading “Wire Wrapping for Low Current Monitoring”
High Voltage Test Transformers, Construction, Design and Their Application in HV Testing System
Published by Bogdan TUŁODZIECKI, Electric Apparatuses Factory Zwarpol Ltd. in Warsaw Abstract. In this article were described the most frequently used constructions of high voltage test transformers. There were presented defects, advantages and application of describing constructions. There were described how to design high voltage test transformers and what is important during their design. OnContinue reading “High Voltage Test Transformers, Construction, Design and Their Application in HV Testing System”
Prospective Short Circuit Test and Prospective Fault Current Test (PSC & PFC TEST)
Published by Carelabs, Carelabs (Carelabz) is authorized provider of Electrical Installation’s Study, Analysis, Inspection, and Certification services in UAE. Website: carelabz.com Prospective Short Circuit (PSC) and Prospective Fault Current (PFC) are both intended to calculate the highest current that will stream within a fault loop path during the occurrence of an electrical flaw as needed by rules. The Prospective Short Circuit Current (PSC) is the utmost current that could flow between Line and Neutral conductors onContinue reading “Prospective Short Circuit Test and Prospective Fault Current Test (PSC & PFC TEST)”
Power Quality Blog 