Tag Archives: Dranetz

Planning and Performing a Power Quality Survey

Published by Dranetz Technologies, Support – Technical Documents, Application Note, website: dranetz.com, 800-372-6832 (U.S & Canada) +1-732-287-3680 (International). INTRODUCTION The power quality survey is the first, and perhaps most important, step in identifying and solving power problems. Power problems can harm equipment performance and reduce reliability, lower productivity and profitability, and even pose personnel safetyContinue reading “Planning and Performing a Power Quality Survey”

Wind Plant IEEE Std. 519 Compliance Evaluation

Published by Electrotek Concepts, Inc., PQSoft Case Study: Wind Plant IEEE Std. 519 Compliance Evaluation, Document ID: PQS1201, Date: January 25, 2012. Abstract: This case study presents the results for a wind plant substation IEEE Std. 519 harmonic measurement compliance evaluation. The wind plant substation supplied 65 wind turbine generators and the power quality monitor wasContinue reading “Wind Plant IEEE Std. 519 Compliance Evaluation”

Variable Frequency Drive (VFD) Testing Applications

Published by Dranetz Technologies, Inc. VFD motor controls have become very popular for both retrofits and in new applications. They offer increased energy efficiency, potential for less motor wear, lower startup currents and more. Potential disadvantageous include producing harmonics and damaged motors if they are not controlled properly. VFD’s use a Pulse Width Modulated (PWM) voltageContinue reading “Variable Frequency Drive (VFD) Testing Applications”

Dranetz HDPQ Family Generator & Mission Critical Testing

Published by Dranetz Technologies, Inc. INTRODUCTION Data centers, hospitals, mission critical and other facilities rely on standby power. This is often generators that are ready to carry the load if there is an interruption in the primary power source. Such facilities often have UPS systems for a seamless transition to standby power, and to carry theContinue reading “Dranetz HDPQ Family Generator & Mission Critical Testing”

Energy Platform EP1 Trend Data Time Interval

Published by Terry Chandler, Director of Engineering, Power Quality (Thailand) Co., Ltd. Emails: terryc@powerquality.co.th,TChandler@Dranetz.com The EP1 is Energy Platform has a slightly different time interval for the trended data from the other Dranetz portable products. The PX/PG/PV have a minimum intervals of 1 second, 10 seconds and 1 minute. Note: There are some limitations onContinue reading “Energy Platform EP1 Trend Data Time Interval”

Dranetz HDPQ Generator & Mission Critical Applications

Load stepping, power source switching and other tests required during the commissioning and troubleshooting of mission critical facilities presents unique challenges to the average PQ analyzer, but Dranetz doesn’t make average PQ analyzers. Most PQ analyzers can’t reliably capture the step load changes, don’t have a large enough recording buffer, can’t capture the effects onContinue reading “Dranetz HDPQ Generator & Mission Critical Applications”

Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD

Published by Dranetz™ Technologies, Inc., Case Study, Website: dranetz.com. This case study was submitted by Ing. Leopoldo Martínez Basulto, Dranetz México. INTRODUCTION Harmonics are an important PQ issue today. Variable Frequency Drives (VFD), Uninterruptible Power Systems (UPS), computers, LED lighting, electronic ballasts, etc. are widely used in all kinds of facilities. It is well knownContinue reading “Harmonics & Waveform Measurements Low Pass Filter & Sine Wave Filter for a 460V 100HP AC Motor with VFD”

PQ Analysis: Power Quality Reports

Published by testguy, November 23, 2019. Website: testguy.net Power Quality Reports A power quality meter can plot the voltage and current waveforms as functions of time, this is called an oscillogram. Data can be extracted from the power quality recorder and analyzed to determine the overall condition of the power system using various timeplots and tables. TheContinue reading “PQ Analysis: Power Quality Reports”