Specifications
The Patent Office Journal 17/12/2010 
4641
(12) PATENT APPLICATION PUBLICATION  (21) Application No.474/CAL/2000 A 
(19) INDIA 
(22) Date of filing of Application :18/08/2000  (43) Publication Date : 17/12/2010 
(54) Title of the invention : FLUID-FILLED ELECTRICAL EQUIPMENT INTELLIGENT ANALYSIS SYSTEM AND METHOD 
(51) International classification 
:G06F 
17/00 
(31) Priority Document No  :09/398,033 
(32) Priority Date  :17/09/1999
(33) Name of priority country  :U.S.A. 
(86) International Application No 
 Filing Date 
:NA 
:NA 
(87) International Publication No  : NA 
(61) Patent of Addition to Application Number 
 Filing Date 
:NA 
:NA 
(62) Divisional to Application Number 
 Filing Date 
:NA 
:NA 
(71)Name of Applicant : 
 1)GENERAL ELECTRIC COMPANY 
 Address of Applicant :ONE RIVER ROAD, 
SCHENECTADY, NEW YORK U.S.A. 
(72)Name of Inventor : 
 1)THOMAS GARY O'KEEFFE 
 2)STEVEN HECTOR AZZARO 
 3)VINAY BHASKAR JAMMU 
 4)GREGORY DENNIS COULTER 
 5)JOHN CHARLES CROUSE 
 6)ALFONSO M. DELGADO CRUZ 
 7)ENRIQUE BETANCOURT 
 8)EDWARD BRITTAIN STOKES 
(57) Abstract : 
An intelligent analysis apparatus (10) and method for fluid (F) filled electrical equipment (20) includes sensors (28a-e) for measuring 
various parameters of the electrical equipment (20). Analytical model (112, 114, 116)s calculate parameters based on measurements o
f
other parameters. The measured and calculated parameters are compared and the result of the comparison is used as an indicator in a 
causal network. The probabilities of the causal network are recalculated by a belief network. The analytical model (112, 114, 116)s are 
adjusted over time to account for acceptable changes in behavior of the equipment over time. The output of the causal network can be 
used for diagnostic and prognostic indication.
No. of Pages : 34 No. of Claims : 48 










