Proceedings ArticleDOI
Design of a microprocessor-based overcurrent relay
T.S. Sidhu,M.S. Sachdev,H.C. Wood +2 more
- pp 41-46
TLDR
The authors describe the design of a microprocessor-based overcurrent relay that is suitable for protecting distribution and subtransmission networks and a modified technique for modeling the time-current characteristics is described.Abstract:
The authors describe the design of a microprocessor-based overcurrent relay that is suitable for protecting distribution and subtransmission networks. A modified technique for modeling the time-current characteristics is described. The proposed design is implemented using a Texas Instruments TMS320C25 digital signal processor. Some details of the hardware and software of the relay are presented. A digital overcurrent relay is also described. Test results indicate that the overcurrent relay accurately emulates the desired time-current characteristics. >read more
Citations
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Journal ArticleDOI
A Comprehensive Investigation of Wireless LAN for IEC 61850–Based Smart Distribution Substation Applications
TL;DR: Hardware prototypes of WLAN-enabled IEC 61850 devices are developed using industrial embedded systems, and the performance of smart distribution substation monitoring, control, and protection applications is analyzed for various scenarios using a round trip-time of IEC61850 application messages.
Journal ArticleDOI
Microcontroller based overcurrent relay and directional overcurrent relay with ground fault protection
TL;DR: In this paper, the design and construction of overcurrent and directional overcurrent relays with ground fault protection for the protection of three-phase subtransmission and distribution systems, using a 16-bit microprocessor, the Intel 8096BH.
Journal ArticleDOI
DSP based overcurrent relay using fuzzy bang–bang controller
TL;DR: An implementation of overcurrent relay with improved coordination on a DSP, TMS320F2812 is described, and the fuzzy bang–bang controller is used as the control strategy for the relay to provide efficient control for overcurrent protection.
Proceedings ArticleDOI
Overcurrent relay curve modeling using adaptive neuro fuzzy inference system
TL;DR: Modeling of overcurrent relay (OCR) curves using adaptive neuro fuzzy inference system (ANFIS) is proposed, which implements of microcontroller AT mega 128 as digital relay and personal computer as facility to design of OCR curve.
Proceedings ArticleDOI
A technique for generating computer models of microprocessor-based relays
TL;DR: A unified approach for the computer simulation of microprocessor-based power system relays so that their performance can be evaluated for a variety of situations without using the relay.
References
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Journal ArticleDOI
A New Algorithm for Digital Impedance Relays
M.S. Sachdev,M.A. Baribeau +1 more
TL;DR: In this paper, a new algorithm suitable for calculating impedances from digitized voltages and currents sampled at a relay location is presented, where each input is assumed to be composed of a decaying d.c. component and components of the fundamental and harmonic frequencies.
Journal ArticleDOI
Design, implementation and testing of a microprocessor-based high-speed relay for detecting transformer winding faults
TL;DR: In this article, a microprocessor-based high-speed relay that correctly detects transformer winding faults is presented, instead of relying on the presence of harmonics to identify magnetizing inrush, it uses a nonlinear model of the transformer to determine the state of its health.