Title :
Power quality analysis and corrections
Author :
Apostolov, Alexander
Abstract :
The paper discusses the effect of short circuit fault on sensitive loads and methods for reducing the duration of voltage sags, swells or interruptions by improving existing protection methods or adding advanced protection schemes. Requirements for the recording of power quality events in order to understand their effects on the manufacturing process are presented. Combining multiple overcurrent elements in a complex overcurrent characteristic, using negative sequence overcurrent protection, distribution bus and breaker failure protection, fuse saving or selective backup tripping schemes are described.
Keywords :
cement industry; circuit breakers; electric fuses; failure analysis; manufacturing processes; overcurrent protection; power distribution protection; power supply quality; short-circuit currents; breaker failure protection; distribution bus; fuse saving; interruption; manufacturing process; negative sequence overcurrent protection; overcurrent element; power quality analysis; power quality correction; power quality event recording; protection method; selective backup tripping scheme; sensitive load; short circuit fault; voltage sag; voltage swell; Circuit faults; Manufacturing industries; Power engineering and energy; Power quality; Power system modeling; Power system protection; Power system relaying; Protective relaying; Substation protection; Voltage fluctuations;
Conference_Titel :
Cement Industry Technical Conference, 2005. Conference Record
Print_ISBN :
0-7803-9107-1
DOI :
10.1109/CITCON.2005.1516373
