A. V. Antonov, V. A. Chepurko, N. G. Zyulyaeva, A. Ya. Belousov, V. V. Taratunin, “Statistical analysis of operational reliability for electric pump units CN 60–180 of VVER-1000 reactors with root estimation methods”, Avtomat. i Telemekh., 2010, Issue 7,Pages <nobr>160

Applications of Reliability Theory to Industry, Medicine, and Other Fields

Statistical analysis of operational reliability for electric pump units CN 60–180 of VVER-1000 reactors with root estimation methods

A. V. Antonov^a, V. A. Chepurko^a, N. G. Zyulyaeva^a, A. Ya. Belousov^b, V. V. Taratunin^b

^a Obninsk State Technical University of Atomic Power (IAEP)), Obninsk, Russia
^b All-Russian Scientific Research Institute for Nuclear Power, Moscow, Russia

Abstract: We consider the problem of processing statistical data obtained during the operation of pumping units CN 60-180 operating as standard equipment of the VVER-1000 reactors. Data for analysis was taken from the industry database of VNIIAES. The objects' operation has been observed from January 1, 1990 to December 31, 2007. Statistical information is processed with nonparametric estimation method called root estimation. We obtain reliability characteristics for the units: time-to-failure density and distribution function, faultless operation probability, and fault intensity. The obtained results are used to determine control influences.

Presented by the member of Editorial Board: B. G. Volik

Received: 20.08.2009