Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se Introduction This case study explores how advanced power quality measurement technology facilitated the diagnosis of severe power quality disturbances in a bus depot. These disturbances, which neither the bus operator nor the bus manufacturer initially attributed to electrical quality issues, were ultimately traced toContinue reading “Measuring PQ Issues in a Bus Depot Using Unipower HW and Software”
Tag Archives: Power Quality Meter (PQM)
Transient Detection using Peak Detectors
Published by Jonny Carlsson, Unipower AB, http://www.unipower.se Background The main problem with transients in the electrical network is that a high voltage potential might break the isolation barrier in for example cables or other equipment in the electrical network. It may also harm semiconductors that are sensitive of high voltage. A transient voltage is byContinue reading “Transient Detection using Peak Detectors”
New Technology for PQ Measurements using Auto-Calibration on Capacitive Tap on Inductive Current Transformer
Published by Jonny CARLSSON – Unipower AB, David HOLMBERG – AB Vattenfall, Jan ÖSTLUND – ABB AB Abstract A method of real-time calibrating the voltage signal from the Capacitive Tap on an ABB Current Transformer using Unipowers ‘UP-2210R/ABB Capacitive tap Module’ has produced accurate results of unbalance, harmonics and transients with no limitation in bandwidth.Continue reading “New Technology for PQ Measurements using Auto-Calibration on Capacitive Tap on Inductive Current Transformer”
Elspec becomes PQSynergy™ & Power Quality Blog Sponsor
We are pleased to announce that Elspec was a Sponsor for PQSynergyTM International and Conference Exhibition 2024 and Power Quality Blog. It is a privilege to be supported by Elspec. We are grateful to the Elspec team. Elspec is a leading global provider of advanced power quality analyzers, power quality solutions and power monitoring software.Continue reading “Elspec becomes PQSynergy™ & Power Quality Blog Sponsor”
VPN-Based Monitoring Power System Facilities
Published by Petro Baran1, Yuriy Varetsky1,2, Viktor Kidyba1, Yaroslava Pryshliak1, Іgor Sabadash1, Oleksandr Franchuk3, Lviv Polytechnic National University (1), AGH University of Science and Technology (2), Institute of Microprocessor Control Systems for Power System Objects, Lviv, Ukraine (3), Abstract. Power system substations are usually controlled from a central control point using various telemechanical systems. AtContinue reading “VPN-Based Monitoring Power System Facilities”
Thailand Integrates Large-Scale Wind Farms
Published by C. MADTHARAD, Provincial Electricity Authority (PEA), Thailand. and J. WARMAN, Senergy Econnect Australia. T&D World – Renewables: Thailand Integrates Large-Scale Wind Farms, Sept. 28, 2015. Provincial Electricity Authority address power-quality issues that arise from increasing penetration of renewable energy. In the Kingdom of Thailand, power-quality regulations applicable to small power producers and veryContinue reading “Thailand Integrates Large-Scale Wind Farms”
EDP Distribuição’s Development of Support Tools and Platforms for Power Quality Management and Analysis
Published by Fabrice GONÇALVES, António LEBRE, Pedro VELOSO, Fernando BASTIÃO, Nuno MELO, DP Distribuição – Portugal. Emails: fabrice.goncalves@edp.pt, antoniojose.lebrecardoso@edp.pt, pedro.veloso@edp.pt, fernando.bastiao@edp.pt, nuno.melo@edp.pt 24th International Conference & Exhibition on Electricity Distribution (CIRED). 12-15 June 2017. ABSTRACT EDP Distribuição, as distribution system operator (DSO), has been developing an ambitious Power Quality (PQ) monitoring program. This paper aimsContinue reading “EDP Distribuição’s Development of Support Tools and Platforms for Power Quality Management and Analysis”
METSyS Panel Capacity Analyzer (PCA)
Published by POWERetc Corporation, Corporate Headquarters,3350 Scott Blvd, Bldg. 55-03, Santa Clara, CA 95054. Phone: (408) 540-3199 Email: info@poweretc.com, Website: poweretc.com The Right Tool for Conducting a Connected Load Study to Confirm Panel Capacity The METSyS Panel Capacity Analyzer (PCA) is a specially-designed instrument for measuring and recording 3- or 4-phase current to confirm the distribution panel’sContinue reading “METSyS Panel Capacity Analyzer (PCA)”
Introduction to Energy Meter Calibration
Published by Simon Mugo, EE Power – Technical Articles: Introduction to Energy Meter Calibration, November 04, 2022. This article will guide engineers and technicians through procedures, precautions, and the importance of carrying out electrical energy meter calibration. All electrical and electronic measuring equipment is prone to errors caused by external or internal factors. The errors can be removedContinue reading “Introduction to Energy Meter Calibration”
Power Quality in the Portuguese Distribution Network
Published by António LEBRE, Fernando BASTIÃO Nuno MELO, Luísa JORGE Pedro VELOSO, António BLANCO, EDP Distribuição – Portugal. Emails: antoniojose.lebrecardoso@edp.pt, nuno.melo@edp.pt, pedro.veloso@edp.pt, fernando.bastiao@edp.pt, luisa.jorge@edp.pt, antonio.blanco@edp.pt ABSTRACT There is an increase in the quantity and in the variety of challenges faced by distribution network operators, concerning to Power Quality (PQ). EDP Distribuição, in Portugal, has beenContinue reading “Power Quality in the Portuguese Distribution Network”
Power Quality Blog 