Results 141 to 150 of about 35,817 (159)

Microprocessor applications to substation control and protection

IEEE Computer Applications in Power, 1988
Some of the characteristics of microprocessor applications introduced over the last ten years are surveyed, and the specific benefits received from these uses are pointed out. The focus is on specific design issues that illustrate some of the design characteristics and advantages achieved by using microprocessors.
M. Kezunovic, B.D. Russell
openaire   +1 more source

A Microprocessor Protection Architecture against Hardware Trojans in Memories

2020 15th Design & Technology of Integrated Systems in Nanoscale Era (DTIS), 2020
Software exploitable Hardware Trojan Horses (HWTs) have been currently inserted in commercial CPUs and, very recently, in memories. Such attacks may allow malicious users to run their own software or to gain unauthorized privileges over the system. Therefore, HWTs are nowadays considered a serious threat both from academy and industry.
Bolat A., Cassano L., Reviriego P., Ergin O., Ottavi M.   +4 more
openaire   +3 more sources

Microprocessor-based protection scheme for power transformers

Proceedings:Electrical Electronics Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 2002
This paper presents a microprocessor based relay scheme for differential protection of large power transformers. This scheme provides protection against internal faults on transformers, and restrains the tripping operation during the inrush condition by detecting the second harmonic component in the current. The functions of various blocks of the relay
S.R. Kolla, D.V. Gedeon
openaire   +1 more source

RELIABILITY FACTORS OF SOFTWARE FOR MICROPROCESSOR PROTECTIONS

2023
The features of the program functioning reliability that are typical for critical applications operating in real mode for microprocessor protections are considered. Among the main characteristics of the relay protection functioning are reliability indicators.
openaire   +1 more source

Microprocessor-based relay for protecting power transformers

IEE Proceedings C Generation, Transmission and Distribution, 1990
The paper describes the design, implementation and testing of a microprocessor-based relay for protecting single-phase and three-phase transformers. The relay implements algorithms that use nonlinear models of transformers to detect winding faults. The algorithms, hardware and software are also briefly described.
T.S. Sidhu, M.S. Sachdev, H.C. Wood
openaire   +1 more source

Microprocessor Based Temperature Monitoring, Control and Protection

IETE Journal of Education, 1987
This paper represents a microprocessor based on-line temperature monitoring, Control and protection scheme. This scheme can be used with (i) thermistor sensors (ii) semiconductor diode sensors (iii) thermocouple sensors and (iv) resistance wire sensors.
S.C. Kar, A.K. Mukhopadhyay
openaire   +1 more source

Reliability of a Microprocessor-Based Protection Switching System

Bell System Technical Journal, 1978
High-capacity transmission systems usually include one or more hot spares for protection. When a regular transmission channel fails, its signal is rapidly transferred to the spare channel under the control of protection switching circuits so that there is little signal degradation or interruption.
openaire   +1 more source

Microprocessor-based cathodic protection system using photovoltaic energy

Applied Energy, 1995
Abstract Cathodic protection (CP) is a means of rendering a metal immune from corrosive attack by utilizing an external direct current to oppose the discharge of corrosion current from the anodic areas of the metallic structure. The variation of the surrounding medium's resistivity due to changes in climatic conditions makes it difficult to stop the ...
H. El Ghitani, A.H. Shousha
openaire   +1 more source

Microprocessor-Aided Instruction in Power-System Protection

IEEE Transactions on Education, 1981
Supplementary use of microprocessors in electrical engineering education can provide an effective learning environment for introductory as well as advanced studies. In addition, sufficient exposure to microcomputers as a design and analysis tool is consistent with the ever expanding industria applications of these devices.
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Cross-referenced ESD protection for power supplies [microprocessors]

Electrical Overstress/ Electrostatic Discharge Symposium Proceedings. 1998 (Cat. No.98TH8347), 2002
We demonstrate a novel method for protection of the power supplies on a low-power microprocessor. The protection method splits the I/O supply bus into two segments, relying on the voltage difference between the supplies to distinguish between an ESD event and normal operation.
W.R. Anderson, J.J. Montanaro, N.J. Howorth   +2 more
openaire   +1 more source