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Preserving Circuit Breaker Adequacy in Electric Power Systems

By Dam, Q. Binh

Preserving Circuit Breaker Adequacy in Electric Power Systems

0 - Default Title
Description
Power system expansions increase fault current levels. A number of circuit breakers were not designed to interrupt such increased faults currents; such breakers are said to be overstressed, underrated, or inadequate. Inadequate ratings expose overstressed breakers to increased failure probabilities. Circuit breaker failures may cause extensive common-mode outages and reduce power systems reliability. One objective of this work is to quantify the limits imposed by inadequate circuit breakers in terms of probability of failure. The other objective is to provide guidelines for network reconfigurations, generator commitment, and economic dispatch strategies. Breaker adequacy is preserved by keeping fault currents within the operating limits of overstressed breakers until such breakers are replaced. The immediate benefit of the proposed strategies is a reduction of the failure probability of overstressed breakers. Other benefits include (i) increased network reliability, (ii) restored operating margins with respect to existing equipment, and (iii) improved planning of overstressed breaker replacements that account for long-term trends in power system growth.
Product details
Binding:
Paperback
Number of Pages:
208
Release Date:
2025-08-25
Publication Date:
2025-08-25
Publisher:
LAP LAMBERT Academic Publishing
Languages:
Original: English
ISBN10:
6208483174
ISBN13:
9786208483173
GPSR Manufacturer Reference:
[email protected]
Weight:
328 g
Height:
150 cm
Width:
220 cm
Thickness:
13 cm
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