Understanding Current and Voltage Harmonics

Published by L&T Electrical & Automation, Website: lntebg.in Source: https://www.lntebg.in/about-us/blog/understanding-current-voltage-harmonics/ Current and voltage harmonics are often used interchangeably. At most places, only harmonics is quoted and whether the values pertain to current or voltage is not mentioned. The differentiation can be done on the basis of their origin. Understanding Total Harmonic Distortion The current andContinue reading “Understanding Current and Voltage Harmonics”

Part 7: AC Power Distribution Systems & Standards (Overcurrent, Fuse & Circuit Breaker)

Published by Nikola Zlatanov* Complete Overcurrent Device Interest in complete overcurrent device selectivity has increased due to the addition of selectivity requirements to articles 700, 701, and 708 of the National Electrical Code (NFPA70). Many users, both commercial and industrial, use fuses and circuit breakers simultaneously. Traditional Time- Current Curve (TCC) analysis is known toContinue reading “Part 7: AC Power Distribution Systems & Standards (Overcurrent, Fuse & Circuit Breaker)”

Laboratory Investigation of the Input Current Characteristics of Modern Domestic Appliances for Varying Supply Voltage Conditions

Published by Sean Elphick, Senior Member, IEEE University of Wollongong, elpho@uow.edu.auPhilip Ciufo, Senior Member, IEEE University of Wollongong, ciufo@uow.edu.auSarath Perera, Member, IEEE, University of Wollongong, sarath@uow.edu.au Publication Details S. Elphick, P. Ciufo & S. Perera, “Laboratory investigation of the input current characteristics of modern domestic appliances for varying supply voltage conditions,” in 14th International ConferenceContinue reading “Laboratory Investigation of the Input Current Characteristics of Modern Domestic Appliances for Varying Supply Voltage Conditions”

Calculate Neutral Current in Dran-View 7

Published By Terry Chandler Director of Engineering, Power Quality Thailand LTD/Power Quality Inc., USA. March 2021Emails: terryc@powerquality.org, terryc@powerquality.co.th Application note to calculate neutral current in DV7 or manually from RMS values manually and automatically with DV7 Enterprise math channels! The neutral current in a three-phase, four-wire wye system represents the imbalance of the three-phase conductors, also known asContinue reading “Calculate Neutral Current in Dran-View 7”

WideRangeFlexCT™ Accuracy

Application Note 06-01-2015 Published by Radian Research, Inc.  Trademarked flex CT interface WideRangeFlexCT™ measures currents from 1A to 2500A without requiring the user to set specific ranges. Internally there are 3 measurement ranges that are automatically switched between. The measurement error depends on which range is active, these ranges are 1.00A – 18.00A, 18.0A –Continue reading “WideRangeFlexCT™ Accuracy”