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Unformatted text preview: of two elements belong to the
Category B contingencies.
False. Loss of a single element are referred to the Category B. Loss of two elements belong to the
(Background - Slides #24~25)
b. Under a steady-state operating condition, all the operating quantities that characterize the condition are
False. Actually, not constant but treated as constant only for purpose of analysis. (Background – Slide
c. A bulk power system that has adequate energy resources to support the electrical demands of its
customers does not have reliability problems.
False. Reliability includes adequacy and security. A system without adequacy issue could still have
security issue. (Background – Slide #23)
d. Power system stability is essentially a single problem; Because of high dimensionality and complexity
of stability problems, it helps to make simplifying assumptions to analyze specific types of problems
using an appropriate degree of detail of system representation and appropriate analytical techniques.
Ture. (Background – slide #37) e. A dynamic load model enables modeling dynamic characteristics of a load with changes of the bus
voltage magnitude and/or frequency at any instant of time. It can be described by algebraic functi...
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- Spring '12