{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T16:41:44Z","timestamp":1781109704412,"version":"3.54.1"},"reference-count":33,"publisher":"IGI Global Scientific Publishing","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,10,1]]},"abstract":"<p>This article describes how a drastic failure of a machine is caused by insulation collapse which results heavy interruption as well as losses. The stable operation of a generator mainly depends upon the stator winding insulation. In past, various testing and repairing techniques have been applied in order to analyze the insulation life. However, in this context, a complete stator windings insulation analysis have been carried out by testing and monitoring techniques such as insulation resistance, di-electric absorption ratio, polarization index before repair and after rehabilitation work, ac &amp; dc high voltage, dc resistance test of winding coils, as well as surface potential test, no-load test and short circuit test. It basically reflected the insulation life of stator winding and helped to take remedial measures. This research techniques will pave the way to overcome such failure in machine and recommended the interval based tests for safety purpose.<\/p>","DOI":"10.4018\/ijeoe.2018100104","type":"journal-article","created":{"date-parts":[[2018,7,19]],"date-time":"2018-07-19T11:10:16Z","timestamp":1531998616000},"page":"68-91","source":"Crossref","is-referenced-by-count":0,"title":["An Experimental Insulation Testing Investigation of 210 MW Generator"],"prefix":"10.4018","volume":"7","author":[{"given":"Mahendar","family":"Kumar","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, MUET Jamshoro, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Z.A.","family":"Memon","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, MUET, Jamshoro, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.A.","family":"Uqaili","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, MUET, Jamshoro, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mazhar H.","family":"Baloch","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, MUET, Khairpur Mirs Campus, Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"IJEOE.2018100104-0","unstructured":"56-2016 - IEEE Guide for Insulation Maintenance of Electric Machines. 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A Method for Diagnosing the Insulation Deterioration in Mica-Resin Insulated Stator Windings of Generator (Rep. No. W88046). Yokosuka Research Laboratory."},{"issue":"2","key":"IJEOE.2018100104-6","first-page":"119","article-title":"Analysis of Insulation Aging Mechanism in Generator Stator Windings.","volume":"15","author":"H.-D.Kim","year":"2002","journal-title":"Journal of the KIEEE"},{"issue":"6","key":"IJEOE.2018100104-7","first-page":"324","article-title":"Assessment of Insulation Condition in Operating Large Turbine Gener-tor","volume":"53C","author":"H.-D.Kim","year":"2004","journal-title":"Trans. KIEE"},{"key":"IJEOE.2018100104-8","doi-asserted-by":"publisher","DOI":"10.1109\/IAS.1996.557113"},{"key":"IJEOE.2018100104-9","doi-asserted-by":"crossref","unstructured":"Kohler, J. L. Sottile, J. & Trust, F. C. (2002). Condition monitoring of stator windings in induction motors. II. Experimental investigation of voltage mismatch detectors. IEEE Trans. Ind. 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Test methods for determining the impact of motor condition on motor of efficiency and reliability [Ph.D. dissertation]. ALLTEST Pro, LLC, Old Saybrook, CT."},{"key":"IJEOE.2018100104-20","unstructured":"Penrose, H.W. (n.d.). Synchronous machine testing with all-test instrumentation an all-test (white paper). Pro, LLC."},{"key":"IJEOE.2018100104-21","doi-asserted-by":"crossref","unstructured":"Rux, L. & Mcdermid, B. (2001). Assessing the condition of hydro generator stator insulation using the ramped high direct-voltage test method. IEEE Electr. Insul. Mag., 17(6), 27-33.","DOI":"10.1109\/57.969943"},{"key":"IJEOE.2018100104-22","doi-asserted-by":"crossref","unstructured":"Sedding, H. G., Schwabe, R., Levin, D., Stein, J., & Gupta, B. K. (2003, September). The Role of AC & DC Hipot Testing in Stator Winding Aging. 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