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This paper describes a method for predicting circuit breaker time-to-failures using a probabilistic operational model that incorporates generation capacity growth. Increases in generation capacity may cause fault current levels to approach or exceed circuit breaker ratings. This condition may increase the probability of a circuit breaker failure. Circuit breaker failures result in common-mode multiple...
Due to the regulatory requirements related to power quality, the problem of fault location in electrical power systems has been consider as very important, specially in power distribution utilities. In this paper, a statistical classification algorithm based on fuzzy probability functions used to locate single phase faults in distribution systems is presented. The proposed algorithm is tested in a...
The original method of switchyard types optimization for transmission network (330 and 110 kV) is structured in the article reviewing the following aspects: 1) the principle of the method; 2) switchyard's reliability criteria; 3) algorithm of criteria calculation. This method and algorithm are appropriate for switchyard types optimization of transmission network, applying pilot technology LDM-T&G'08.
Cost-effective maintenance scheduling of power system equipment is critical, especially with present economic scenario of power industry. Apart from long-term maintenance policy, asset planners need to come up with revised short term maintenance strategies mainly due to the shrinking budget allocations for various reasons. The problem may be formulated as follows: if it is the same availability of...
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