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An Analysis of Elimination of Interferences in the Supply System of An Industrial Plant

Published by Jacek KOZYRA1, Zbigniew ŁUKASIK1, Aldona KUŚMIŃSKA-FIJAŁKOWSKA1, Piotr TAŃSKI2, Kazimierz Pulaski University of Radom, Faculty of Transport, Electrical Engineering and Computer Science (1) Baxtom Sp. z o.o, (2) ORCID: 1. 0000-0002-6660-6713, 2. 0000-0002-7403-8760, 3. 0000-0002-9466-1031 Abstract. Poor quality of electric energy is a large problem for most of the enterprises and production plants taking…

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Flexible Rogowski Current Probes in Measurements of Ultra-Fast SiC MOSFET Modules – Limitations and Challenges

Published by Dawid ZIĘBA1, Jacek RĄBKOWSKI2, Medcom Company (1), Warsaw University of Technology, Institute of Control and Industrial Electronics (2) ORCID: 1. 0000-0003-3789-6851; 2. 0000-0001-8857-3505 Abstract. The article presents a discussion on the limitations of the flexible Rogowski current probes in the measurements of switching processes in ultra-fast SiC MOSFET power modules. The probes feature…

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Legislative Assistance for Prosumer Energy within the Framework of Electrical Safety of Power Network

Published by Wiktoria GRYCAN, Wroclaw University of Science and Technology, ORCID: 0000-0001-8121-7612 Abstract. Prosumerism is inherently designed to be a tool that alleviates the grid. Still, not every prosumer aligns the consumption profile with the energy generation profile in photovoltaic installations. Therefore, the rapid development of Renewable Energy Sources (RES) in Poland, especially photovoltaic installations,…

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Some Issues of Increasing the Efficiency of Electric Machines

Published by Samira KHANAHMEDOVA, Azerbaijan State Oil and Industry UniversityORCID: 0000-0001-8862-1570 Abstract. The article discusses ways to reduce losses to increase efficiency in electric machines. The amount of energy loss is determined by the efficiency coefficient. The issues of changing the size of an electric machine under electromagnetic loads with a constant power source and…

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Damaged X-ray Equipment at Major Health Care Center

Published by Dranetz Technologies, Inc. Website: Dranetz.com  Severe power quality problems damaged X-ray equipment, costing $100,000 in one instance. The source of the problem was the switch over from utility to generator power, during regular testing and emergency situations. Figure 1 (below) identified the cause of the problem, an out-of-phase transfer, captured by On Power with a…

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Unipower AB – Next Generation Power Quality Meters


The Leading Edge in Electric Power Quality Instruments 

About Unipower

Unipower AB offers a wide range of products for Power Quality measurements and Smart Grid systems.

Originating from a Swedish ABB company in the mid 80’s, Unipower has developed a competitive edge within the field of Power Quality and Smart-Grid solutions. We focus on norm compliance equipment, with a special focus on the requirements for power generation, transmission and distribution.

Our product lines reach from traditional portable PQ analysers to fully integrated and automated Power Quality Management systems for continuous supervision of the energy supply.

Region: Southeast Asia
Power Quality (Thailand) Co., Ltd.
For more information, you can contact:
Ms. Natchuda Thungsub, General Manager
Email: info@powerquality.co.th
Tel: +66 2 373 6340-1, +66 2 373 6824
Website: powerquality.co.th




Unilyzer 900 is small, compact and rugged

Unipower Portable – Unilyzer 900

• Its small size together with the IP65 protection and ruggedness makes Unilyzer 900 an ideal tool for all field measurements. It has no moving parts and has been tested in real, tough environments.

• The instrument complies with IEC 61000-4-30 Class A for Power Quality measurements, which guarantees highest reliability in every advice and conclusion.

• Its standard memory allows data to be stored for 3 months. In case of a power failure it has an internal battery backup keeping the instrument going.

Unipower Permanent – UP2210 

• The UP-2210 unit works as an advanced power quality meter and at the same time as a fault recorder. All of the power quality parameters can be analyzed in accordance with voltage quality standards such as the EN 50160 or national regulations such as the Swedish EIFS. The UP-2210 unit captures both steady state disturbances (harmonics, flicker etc.) as well as rapid voltage changes (sag/swell events and fast transients). The nodes in the PQ Secure system consist of UP-2210 meters.

• Advanced 3-phase Power Quality and Transient Monitor

• The UP-2210 is a full-featured, norm-compliant power quality monitor capable of detecting any disturbances encountered in a network.


The UP-2210 unit is an advanced Power Quality meter

Dranetz HDPQ Xplorer Plus

Offer | Instrument Rental program is designed to provide engineers and customers with High-end Power Quality Analyzers by Dranetz for a modest weekly or monthly payment. The instruments offered are “State-of-the-Art and fully compliant with IEC 61000-4-30 Class A” and calibrated by a certified laboratory.



Electrotek® Concepts | PQView®

What is PQView 4?

Developed in collaboration with EPRI® and Electric Utility partners globally, PQView 4 is the flagship product of Electrotek Concepts, Inc.—built from the ground up to be the best-in-class Power Quality data concentrator and analysis software. PQView can acquire and store data from multiple sources, and provide powerful data analytics and reporting capabilities via a responsive web enabled user interface.



Electrotek Concepts, Inc.

Founded in Mountain View, California in 1984, Electrotek Concepts® is a leading power systems engineering consulting firm and software developer, catering to the needs of electric utilities, power transmission and distribution companies, product manufacturers, building and electrical system designers, research companies, government agencies, university students, and end users—residential, commercial and industrial.

We specialize in:

• Utility and large-scale power system monitoring and performance assessment
• Power management software & SmartGrid solutions
• Training and education

Electrotek is best known for its flagship product, PQView®. Now in its 4th major revision, PQView is the industry’s leading smartgrid database software application for power quality monitoring, analysis, reporting, and automatic fault location, all delivered on a thorough, yet easy-to-use platform.


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Photo by Mike Bird on Pexels.com

Power Quality (Thailand) Co., Ltd. 

We offer a wide range of power quality products and services, including electrical system power analysis, testing, monitoring, trouble analysis, fault diagnostics, ground current testing, leakage current testing, power quality sensitive testing, design advice for power quality and power quality training for end user and utility customer engineers.

PQSynergy™ International Conference and Exhibition

PQSynergy™ is an international forum to share experiences, requirements, questions, information, customer requirements, problems and solutions in the fast growth area of Quality of Supply (QOS) requirements of sensitive loads, Energy Conservation and Management and Power Quality Monitoring and Solutions. The conference is held normally in Thailand but occasionally is relocated around Asia.


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