Results 21 to 30 of about 3,767 (209)

Formation of Orthogonal Components of Input Signals in Digital Measuring Protection Elements with Correction of Dynamic Errors

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
Digital measuring elements in microprocessor protections of electrical installations are implemented mainly with the use of orthogonal components of input signals.
F. A. Romaniuk, Yu. V. Rumiantsev, V. Yu. Rumiantsev   +2 more
doaj   +1 more source

INVESTIGATION OF MICROPROCESSOR CURRENT PROTECTION LINES WITH IMPROVED INDICES OF TECHNICAL PERFECTION

Наука и техника, 2014
Technical perfection improvement of microprocessor current protection of distribution networks lines is provided by introduction of asymmetrical fault mode determination and fault location functions in the algorithm of its functioning.
E. V. Buloichyk
doaj   +2 more sources

ANALYSIS OF METHODS FOR CONTROLLING INPUT SIGNAL PARAMETERS IN ADAPTIVE MICROPROCESSOR CURRENT PROTECTION OF TRANSMISSION LINE

Наука и техника, 2008
The paper considers and analyzes various methods for determination existing values of input phase currents in an adaptive microprocessor current protection of transmission lines.
F. A. Romaniuk, A. A. Tishechkin, A. V. Kovalevsky   +2 more
doaj   +1 more source

Statistical Reliability Estimation of Microprocessor-Based Systems [PDF]

, 2012
What is the probability that the execution state of a given microprocessor running a given application is correct, in a certain working environment with a given soft-error rate?
A. Benso, Di Natale G., A. Bosio, Gianfranco, Politano, Politano, Gianfranco Michele Maria, G. Politano, Di Natale, G., Di Carlo, Stefano, Di Natale, Giorgio, Bosio, Alberto, Bosio A., G. Di Natale, Benso, Alfredo, A. Savino, Bosio, A., S. Di Carlo, Savino, Alessandro   +16 more
core   +1 more source

INVESTIGATION OF MICROPROCESSOR TRANSFORMER CURRENT PROTECTION IN SHORT CIRCUIT FAULT MODES

Наука и техника, 2014
The paper presents an investigation on transformer current protection with blocking against magnetizing inrush current in short circuit fault modes. It has been shown that the proposed magnetizing in-rush current blocking algorithm can be implemented in ...
M. S. Loman
doaj   +2 more sources

RECEPTION OF AVERAGE INPUT SIGNAL VALUES IN MICROPROCESSOR PROTECTION OF ELECTRIC INSTALLATIONS

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005
The paper considers an algorithm of average input signal value formation in microprocessor protection of electric installations distinguished by low sensitivity to changes in industrial frequency. The dependences permitting to give qualitative estimation
F. A. Romaniuk, A. V. Kovalevsky
doaj   +1 more source

Migration Between Two Inverse Time-Overcurrent Curves of Different Standard: Experience at Siguragura Power Station

Jurnal Nasional Teknik Elektro, 2019
The inevitable replacement of electro-mechanical protection relays with more recently-developed microprocessor-based protection relays poses challenges to engineer, one of which is migration from existing manufacturer’s non-standard inverse time ...
Bagus Brahmantya Gautama
doaj   +1 more source

Design and Implementation of O/C relay using Microprocessor

Tikrit Journal of Engineering Sciences, 2012
This work presents the design and implementation of a versatile digital overcurrent (O/C) relay using a single microprocessor. The relay is implemented by a combination of a look-up table and a counter.
Abdul-Sattar H. Jasim, Shakir M. Faisal   +1 more
doaj   +3 more sources

Formation of Orthogonal Components of Input Currents in Microprocessor Protections of Electrical Equipment

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2021
The methods used in the microprocessor protection of electrical equipment for forming orthogonal components of input currents ensure their reliable isolation after changing the mode followed by one or more periods of the fundamental frequency.
F. A. Romaniuk, Yu. V. Rumiantsev, V. Yu. Rumiantsev, I. V. Novash   +3 more
doaj   +1 more source

Compensation of Dynamic Phase Error in the Formation of Orthogonal Components of Input Signals in Microprocessor Protections

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2022
In microprocessor protections of electric power systems, the controlled information parameters of input signals are determined using their orthogonal components.
F. A. Romaniuk, Yu. V. Rumiantsev, V. Yu. Rumiantsev, I. V. Novash   +3 more
doaj   +1 more source