Published by Alex Roderick, EE Power – Technical Articles: Transformer Losses and Efficiency, June 16, 2021 In this article we will learn about the four main types of transformer losses and calculations for finding the efficiency of a transformer. Transformers, like all devices, are not perfect. While ideal transformers do not have losses, real transformers haveContinue reading “Transformer Losses and Efficiency”
Category Archives: Power Quality
Power Quality Issues and It’s Mitigation Techniques
Published by Tejashree G. More, Pooja R. Asabe,Prof. Sandeep Chawda, (Department of Electrical Engineering, Bhivarabai Sawant Institude Of Technology and Research(w), Wagholi, Pune, India) ABSTRACT In this paper the main power quality (PQ) problems are presented with there associated causes and consequences. The economic impact associated with PQ are characterized. Also this paper tries toContinue reading “Power Quality Issues and It’s Mitigation Techniques”
Safety Standards for Testing Instruments
Published by Alex Roderick, EE Power – Technical Articles: Safety Standards for Testing Instruments, November 24, 2021. IEC standards reduce safety hazards that can occur from unpredictable circumstances when using electrical test equipment such as test instruments and meters. The International Electrotechnical Commission (IEC) is an organization that develops international safety standards for electrical equipment. TheContinue reading “Safety Standards for Testing Instruments”
Transformer Maintenance: Planning for Failure
Published by Ahmed Sheikh, EE Power – Technical Articles: Transformer Maintenance: Planning for Failure, September 26, 2023. This article examines transformer maintenance, including simple checks involving temperature and sound that indicate potential issues, maintenance procedures for energized and de-energized dry transformers, and assessments for energized liquid-cooled transformers. Because transformers are so reliable and most of theirContinue reading “Transformer Maintenance: Planning for Failure”
Frequency Control in a Power System
Published by Pietro Tumino, EE Power – Technical Articles: Frequency Control in a Power System, October 15, 2020. Learn about the primary, secondary and tertiary frequency control in a power system. An electric power system is characterized by two main important parameters: voltage and frequency. In order to keep the expected operating conditions and supply energyContinue reading “Frequency Control in a Power System”
Various and Sundry PQ Ruminations
Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Bill Howe is the Program Manager for PowerContinue reading “Various and Sundry PQ Ruminations”
An Introduction To Flow Batteries
Published by Kevin Clemens, EE Power – Technical Articles: An Introduction To Flow Batteries, February 06, 2023. Lithium-ion batteries get all the headlines, but flow batteries are a viable option, particularly for large-scale grid storage. Lithium-ion batteries have become the energy storage device of choice for cell phones, laptop computers, personal handheld devices, and electric vehiclesContinue reading “An Introduction To Flow Batteries”
Proactive PQ: Enabling Analytics and Initial Successes
Published by Bill William Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.com Presented at 21st Annual PQSynergyTM International Conference & Exhibition, Sept 18th – 19th 2023. Mövenpick Hotel Sukhumvit 15 Bangkok, Thailand. Website: pqsynergy.com Author: Bill Howe, Sr. Program Manager, Power Quality, Electric Power Research Institute (EPRI), USA. Email: BHowe@epri.comContinue reading “Proactive PQ: Enabling Analytics and Initial Successes”
Substation Shielding Methods for Lightning Strikes
Published by Lorenzo Mari, EE Power – Technical Articles: Substation Shielding Methods for Lightning Strikes, December 04, 2020. This article explains different substation shielding techniques used to reduce the chance of and damage from direct lightning strikes. Direct lightning strikes to transmission lines or substations may damage the electrical equipment and threaten any nearby personnel. This article focusesContinue reading “Substation Shielding Methods for Lightning Strikes”
Mitigating Harmonics in Power Systems
Published by Simon Mugo, EE Power – Technical Articles: Mitigating Harmonics in Power Systems, May 04, 2023. This article will guide engineers in understanding harmonics, causes, types, equations, and sequences and mitigate harmonics effects. Harmonics are fundamental frequency multiples that have existed since the beginning of the 20th Century when engineers and scientists discovered discontinuous loads,Continue reading “Mitigating Harmonics in Power Systems”
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