By Topic

Investigation on different maintenance rules in the case of load variation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Wen Cao ; State Key Lab. of Electr. Insulation & Power Equip., Xi''an Jiaotong Univ., Xi''an, China ; Kai Wu ; Tingdong Fan ; Junyi Zhou
more authors

With the assumption that the load variance of each apparatus in the reality is of the same value, the former works of Life-Cycle-Cost assessment based on actual data of accelerating degradation neglect the influence of different load to the aging process of apparatus. Nevertheless, the actual operation time can not reflect the real aging time of the insulation system. This paper assumes that in the whole apparatus system the probability density of the power apparatus with load rate factor r follows uniform or normal distribution; therefore, the deviation between the real aging value and the actual operation time is taken into consideration to modify the evaluation of different maintenance strategies. Furthermore, the relation between the real aging time and the actual operation time of power cable can be calculated based on real data. Evaluation of the life-cycle-cost on the basis of actual data of accelerating degradation is put forward to investigate the economic feasibility of different maintenance rules in this paper. The calculation results show that the economic merits of diagnosis rules are influenced by the dispersion of load rate distribution. Frequent diagnosis may not always benefit the economic feasibility of maintenance rules. The maintenance rule without diagnosis may generally save a lot of total cost than those with diagnosis, at the circumstance that the deviation of real aging time distribution is of large value, which may attributed to the uncertainty of failure rate.

Published in:

Solid Dielectrics (ICSD), 2010 10th IEEE International Conference on

Date of Conference:

4-9 July 2010