Reliability Analysis of Apoly-12-PU-500

Girja Sharan, Shah Nitin and Srivastava Uma Kant

IIMA Working Papers from Indian Institute of Management Ahmedabad, Research and Publication Department

Abstract: Breakdown data of APOLY-12-PU-500 windmills of Gujarat has been analysed. Bartlett’s test suggested the plausibility of failure being exponentially distributed. The mean-time-between-failures (MTBF) was estimated, expected failure frequency computed. The observed and expected frequencies are close enough, as indicated by the goodness-of-fit test. The MTBF worked out to 283 hrs. Which in Gujarat conditions could mean at the most 2 months of working. The reliability of this model thus is low. Repair costs will be higher than expected by the designers.

Date: 1986-05-01
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