Distance Protection of Electrical Power Systems
Author: Velimir Lackovic
Distance protection, is a non-unit protection arrangement providing significant financial and technical benefits. Unlike phase and neutral overcurrent protection arrangements, the key benefit of distance protection is that its short circuit current coverage of the protected element is almost autonomous of source impedance changes.
Since the impedance of a transmission circuit is relative to its length, for distance measure it is suitable to use a relay able to measure the impedance of a circuit up to a present point (the reach point). Such a protection relay is known as a distance protection relay and is made to function only for faults happening between the protection relay location and the chosen reach point, therefore providing discrimination for short circuits that may happen in different line portions.
This course is suitable for engineers with a desire to understand the fundamentals of distance protection. Presented details cover issues related to distance protection technical implementation. Upon successful completion engineers will be able to address key distance protection concepts, terms, zones and characteristics.
Once you complete your course review, you need to take a multiple-choice quiz consisting of thirty (30) questions to earn 3 PDH credits
This course is intended to provide you with the following specific knowledge and skills:
- Basic theory and terms of distance protection
- Distance protection zones
- Distance protection characteristics
- Distance protection relay application
Download the Course to review and begin earning your PDH credits.
We provide technical courses for PDH credits that meet Board requirements for Professional Engineers, Geologists and Land Surveyors. This courses is guaranteed to be accepted in AK, AL, AR, GA, IA, IL, ID, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY. Before purchasing this course, please confirm that your state Board is listed above.