Tag Archives: Rapid Voltage Change (RVC)

UNIPOWER IEC 61000-4-30 Ed. 4

Published by Mr. Jonny Carlsson, Research Manager, Unipower AB, Sweden. Email: jonny.carlsson@unipower.se . Website: unipower.se Source URL: https://pqsynergy.com/assets/files/UNIPOWER-IEC61000-4-30Ed.4InprogressstateFDISMemberofWG9.pdf

Investigating Blinky Lights

Published by Dranetz Technologies, Inc., Technical Documents he HDPQ Family of products have a number of trigger mechanisms for capturing different types of power quality phenomena.   Most users are familiar with settings for sags and swells, but those typical limits usually don’t capture the “blinky lights” problems.   While the Pst (perceptibility short term) parameter will indicate whether the voltageContinue reading “Investigating Blinky Lights”

Unipower – About Power Quality

Published by Unipower AB, Metallgatan 4C, 44132 Alingsås, Sweden. Email: info@unipower.se Power quality is a generic term for disturbance-free electricity supply. Deviation from voltage sinusoidal waveform (50 Hz), which may result in equipment being disturbed or damaged, is to be regarded as a power quality disturbance. This means that the more sensitive equipment you connect toContinue reading “Unipower – About Power Quality”

UPS Problem at Datacentre

Published by Unipower AB, Case Study: UPS Problem at Datacentre, Date: January 29th, 2017. Email: info@unipower.se Summary A software development company builds a new datacentre and experience problems with the UPS units and a hard drive failure. A monitoring system, PQ Secure from Unipower AB, was installed and it could be determined that the UPS units,Continue reading “UPS Problem at Datacentre”

Evaluating Rapid Voltage Changes & its Propagation Effect using Multipoint Measurement Technique

Published by Muhammad Imam Sudrajat, University of Twente Enschede, The Netherlands, Indonesian Institute of Sciences, South Tangerang, Indonesia    m.i.sudrajat@utwente.nl Niek Moonen, University of Twente Enschede, The Netherlands niek.moonen@utwente.nl Hans Bergsma, Thales Nederland B.V. Hengelo, The Netherlands hans.bergsma@nl.thalesgroup.com Rob Bijman, Thales Nederland B.V. Hengelo, The Netherlands rob.bijman@nl.thalesgroup.com Frank Leferink, University of Twente Enschede, The NetherlandsContinue reading “Evaluating Rapid Voltage Changes & its Propagation Effect using Multipoint Measurement Technique”