Prediction of Transformer Health Index Using Condition Situation Monitoring (CSM) Diagnostic Techniques

Abstract

This paper presents newly developed condition situation monitoring (CSM) diagnostic techniques for predicting the health index and health condition of practical cases in any working transformer. Investigation on measurement and testing can produce results on the insulation resistance between phase and ground test, polarization index with different time duration test, winding resistance of transformer while winding tap changer rating transformer can be determined by the performance health index of the transformer. Real data was collected from 8 units of transformers from Company Transformer Manufacturing and Servicing (CTMS) in Malaysia. The data was applied to calculate the healthy index to provide the transformer performance indicator condition. The main purpose for the use of transformer health index is to indicate the condition of the transformer and attend to failures that can be prevented, with consequences on safety and cost.

An intelligence expert system for quality health monitoring of power transformers using testing attributes

“…This results in efficiency improvement, service life extension, and optimal performance of transformers [3,4]. In general, a noticeable part of failures in power transformers is primarily caused by their insulation failure [4][5][6][7][8][9]. A detailed failure analysis on 343 power transformers has been carried out in [5], and it is finally concluded as 36.74% of failures are mainly caused due to insulation breakdown.…”