Estimation of residual life of generator 2 stator bars of Kalayaan Pumped Storage Power Plant (KPSPP).

Date

5-2013

Degree

Bachelor of Science in Electrical Engineering

Major Course

Major in Power Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Dulce, Elvin D.

Committee Member

Agno, Karen-Christian C. Corpuz, Jayson G. Layega, Athena P.

Abstract

Reliability of generator's operation is critically reliant on the current condition of its stator windings.As wide range of different stresses occur on the generator, the insulation crumbles in time until it reaches the point of failure. Kalayaan pumped Storage power Plant (KPSPP) generator units experience these stresses daily 24 hours due to its operation as turbine at peak and pump at off-time and pump at off-peak time. Unexpected failure in insulation causes much expense for repair or renewal. Periodic diagnostic tests on the generator have an integral role in monitoring its current condition. The data from these tests can determine the breakdown voltage and remaining life of generator using statistical method. Multiple regression analysis integrates these data to accurately estimate the remaining lifetime of generator. The generated model is therefore strong and significant after the statistical tests applied. The current breakdown voltage is monitored before and after it crosses the safety operation limit. and the remaining lifetime is estimated using the annual data of diagnostic test applied on the generated model. It is concluded that the unit 2 generator of KPSSP, as of August 2007, has 0 remaining years before it reaches the minimum safety operation limit. Since it is over the safety operation limit, its diagnosis is for renewal and not for rewinding of stator windings.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

LG 993 2013 E64 A53

Document Type

Thesis

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