Yearly Archives: 2021

K-Factor Transformers and Non-linear Loads

Published by Kiran Deshpande & Prof. Rajesh Holmukhe, Dept. of Electrical Engineering, College of Engineering, Bharati Vidyapeeth University, Pune, E-mail: irkin85@hotmail.com Prof. Yogesh Angal, Dept. of Instrumentation Engineering, Dr. D. Y.Patil Institute of Engineering and Technology, Pimpri, Pune: 411 018. Abstract – Harmonic currents generated by non-linear loads can cause problems in the power systemsContinue reading “K-Factor Transformers and Non-linear Loads”

What is Protective Device Testing and How is it Done

Published by Carelabs (Carelabz), Website: carelabz.com Equipment applied to electric power systems to detect abnormal and intolerable conditions and to initiate appropriate corrective actions. These devices include lightning arresters, surge protectors, fuses, and relays with associated circuit breakers, reclosers, and so forth. From time to time, disturbances in the normal operation of a power system occur.Continue reading “What is Protective Device Testing and How is it Done”

What ill effects do harmonics created by the computer power supplies have on themselves?

Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. As voltage becomes more and more distorted, it will begin to have a negative effect on the connected equipment. A flat-topped voltage waveform can affect a switch-mode power supply (SMPS) in at least 2 majorContinue reading “What ill effects do harmonics created by the computer power supplies have on themselves?”

K-Factor Defined

Published by Xitron Technologies, Manufacturers of Engineering and Production Test Equipment, An ISO 9001:2000 registered company, AN102 Application Note. In today’s industrial workplace, the proliferation of solid state devices (lighting ballasts, motor drives and controls, communications equipment, and other DC-powered loads) has created a major problem for specifying engineers, contractors and building owners. The non-linearContinue reading “K-Factor Defined”

What is your PQ IQ?

Affinity Energy – Infographic: Understanding the Impacts of Power Quality. Understanding power quality issues $15 billion is the annual cost of power quality issues. $130,000 are the potential costs for downtime in lost revenue for facilities. For mission critical facilities, that translates to $14,000 to $6.5 million every hour. It takes 17 hours for plants toContinue reading “What is your PQ IQ?”

Power Quality. Benefits of Utilizing FACTS Devices in Electrical Power Systems

Published by M.P.Donsión, & J.M. Rodríguez, Department of Electrical Engineering, University of Vigo, Campus of Lagoas Marcosende, 36310 Vigo (Spain), Email: donsion@vigo.es J.A. Güemes2, Department of Electrical Engineering, University of Basque Country (Spain) Abstract. Flexible AC transmission systems or FACTS are devices which allow the flexible and dynamic control of power systems. This paper isContinue reading “Power Quality. Benefits of Utilizing FACTS Devices in Electrical Power Systems”

What is Circuit Breaker Testing and How is it Done

Published by Carelabs (Carelabz), Website: carelabz.com Circuit Breaker Testing is utilised to test the operation of each switching systems and the programming of the entire tripping structure. Circuit Breaker Testing is essential to ensure the safe and reliable performance of this key link in the power asset chain. Circuit breakers perform three main tasks: They should conductContinue reading “What is Circuit Breaker Testing and How is it Done”

How do non-linear loads create current and voltage harmonics?

Published by Mirus International Inc., [2010-01-08] MIRUS-FAQ001-B2, FAQ’s Harmonic Mitigating Transformers, 31 Sun Pac Blvd., Brampton, Ontario, Canada. L6S 5P6. The switch-mode power supply (SMPS), used in most digital electronic equipment, is an excellent example of a non-linear load. Because it draws current in non-sinusoidal pulses, the SMPS is a significant generator of harmonic currents.Continue reading “How do non-linear loads create current and voltage harmonics?”