Laboratory investigation of an amplitude comparator based directional comparison digital protection scheme

A directional comparison digital protection scheme has been implemented with a 16-b single-board computer at each end of a physical model of a transmission line, with communication between the two ends. The protection algorithm makes use of the fundamental frequency components of the deviation signa...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on power delivery Vol. 5; no. 4; pp. 1687 - 1694
Main Authors Prakash, K.S., Malik, O.P., Hope, G.S., Hancock, G.C., Wong, K.K.
Format Journal Article Conference Proceeding
LanguageEnglish
Published New York, NY IEEE 01.10.1990
Institute of Electrical and Electronics Engineers
Subjects
240100 - Power Systems- (1990-)
Amplitude Comparator
Applied sciences
COMPUTER CODES
COMPUTER GRAPHICS
COMPUTERIZED CONTROL SYSTEMS
Computerized monitoring
COMPUTERS
CONTROL SYSTEMS
DESIGN
DIGITAL COMPUTERS
Directional Comparison Relay
Disturbances. Regulation. Protection
Electrical engineering. Electrical power engineering
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
Electrical power engineering
ENERGY SYSTEMS
EQUIPMENT PROTECTION DEVICES
Exact sciences and technology
Frequency
Graphics
Laboratories
Physics computing
PLANNING
Power networks and lines
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
POWER TRANSMISSION LINES
Protection
Real-time implementation
RELAYS
Testing
Transmission Line Protection
Transmission lines
Voltage
Laboratory study
Relay
Transmission line
System realization
Data acquisition
Software
Hardware
Digital protection
Directional protection
Real time
Protection
Comparative study
Online AccessGet full text

Cover

More Information
Summary:A directional comparison digital protection scheme has been implemented with a 16-b single-board computer at each end of a physical model of a transmission line, with communication between the two ends. The protection algorithm makes use of the fundamental frequency components of the deviation signals of the voltage and phase-shifted current. Software routines have been developed for fault monitoring, directional determination, and the trip/block decision. Graphics features incorporated in the software are explained. Tests for various faults conducted on the physical model of a double-circuit transmission line show that the direction to a fault is determined in 3 to 7 ms. The blocking features of the relay are demonstrated.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0885-8977
1937-4208
DOI:10.1109/61.103663