Electrical Testing Equipment Articles
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Through Evolution And Challenges, We Are Energy In Motion
2020. We open the new year. Up to here, our team has been travelling very far. Over these years, we’ve been developing products, reaching markets, creating relations. We started from the beginning more than 50 years ago, by producing by hand our first windings, and then step by step we’ve been growing up to the setting of the Soga Energy Team industrial group, today acknowledged ...
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Protection Relay for Shaft Current and Voltage
Introduction The paper deals with the specific protection relay for all types of generators. The instrument, called Shaft Current and Voltage Protection Relay (SCVP) was developed at KONCAR – Electric Engineering Institute Inc. This instrument is a part of Institute's product line used for monitoring and diagnosis of rotating electrical machines. The most important parts of every electric ...
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Bearing fault severity estimation using time–based descriptors for rotating electric machines
This paper evaluates the bearing fault severity in rotating electric machines based on the time–based descriptors derived from machine vibration signal. Time–based descriptors are independent of bearing dimensions and machine dynamics. To establish the relationship between the time–based descriptor and bearing fault severity, a wide range of defective bearings are examined on an experimental ...
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System for detection of excitation winding shorted turns in hydro generators
Abstract This article describes a specific instrument for detection of excitation winding shorted turns in hydro generators, developed in Koncar - Electrical Engineering Institute Inc., called Hydro generator Winding Fault Detection (HO WFD). This instrument is a part of the Institute's product line used for monitoring and diagnosis of rotating electrical machines. A key issue in the operation ...
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Online condition monitoring of electrical power system imbalance
Symmetrical components are of great importance in many applications in electrical power systems, such as power protection and condition monitoring. This paper presents a computer-based algorithm for online symmetrical components estimation. The proposed algorithm uses the samples of the phase variables (currents or voltages) to estimate the magnitude and phase angle of each phase phasor at each ...
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