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PRODID:IEEE vTools.Events//EN
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TZID:Asia/Calcutta
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DTSTART:19451014T230000
TZOFFSETFROM:+0630
TZOFFSETTO:+0530
TZNAME:IST
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BEGIN:VEVENT
DTSTAMP:20121204T074807Z
UID:1FD966EA-8F37-1030-AD29-0050568D3657
DTSTART;TZID=Asia/Calcutta:20121204T153000
DTEND;TZID=Asia/Calcutta:20121204T163000
DESCRIPTION:Speaker : Prof. K.D. Srivastava\, University of British Columbi
 a\, Canada Abstract: Oil-paper insulation systems have been in use for a l
 ong time in electrical power apparatus\, such as\, generators\, motors\, t
 ransformers and cables. The operating voltages\, particularly for high vol
 tage cables have been continually increasing and 1000 kV designs are avail
 able. In the last few decades the range of insulating materials\, in addit
 ion to the various insulating liquids\, has also expanded gratly. Some oth
 er developments in the application domain have adversely impacted the perf
 ormance and life-time of the above apparatus. For example the extensive us
 e of inverters and converters\, which generate repetitive fast-front overv
 oltage transients. In addition\, the use of SF6 insulated compact substati
 ons also generate such transients in the operating voltage range of such c
 ompact substations. The accumulated field experience shows apparatus failu
 res often occur. This presentation gives a summary of R&D findings about t
 he possible failure modes of oil-paper insulation in service.\n\nCo-sponso
 red by: Dr. Kumar Vaibhav Srivastava\n\nSpeaker(s): \, \, \, \n\nRoom: DA 
 229\, Bldg: ACES\, Department of Electrical Engineering\, Indian Institute
  of Technology Kanpur\, Kanpur\, Uttar Pradesh\, India\, 208016
LOCATION:Room: DA 229\, Bldg: ACES\, Department of Electrical Engineering\,
  Indian Institute of Technology Kanpur\, Kanpur\, Uttar Pradesh\, India\, 
 208016
ORGANIZER:kvs@iitk.ac.in
SEQUENCE:0
SUMMARY:IMPACT OF FAST-FRONT OVERVOLTAGE TRANSIENTS ON OIL-PAPER INSULATION
  SYSTEMS
URL;VALUE=URI:https://events.vtools.ieee.org/m/15613
X-ALT-DESC:Description: <br />Speaker : Prof. K.D. Srivastava\, University 
 of British Columbia\, Canada\n\nAbstract: Oil-paper insulation systems hav
 e been in use for a long time in electrical\npower apparatus\, such as\, g
 enerators\, motors\, transformers and cables. The\noperating voltages\, pa
 rticularly for high voltage cables have been\ncontinually increasing and 1
 000 kV designs are available. In the last few\ndecades the range of insula
 ting materials\, in addition to the various\ninsulating liquids\, has also
  expanded gratly.  Some other developments in\nthe application domain have
  adversely impacted the performance and life-time\nof the above apparatus.
  For example the extensive use of inverters and\nconverters\, which genera
 te repetitive fast-front overvoltage transients. In\naddition\, the use of
  SF6 insulated compact substations also generate such\ntransients in the o
 perating voltage range of such compact substations. The\naccumulated field
  experience shows apparatus failures often occur. This\npresentation gives
  a summary of R&D findings about the possible failure\nmodes of oil-paper 
 insulation in service.
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