Title :
Monitoring of power transformers using the transfer function method
Author :
Leibfried, T. ; Feser, K.
Author_Institution :
Transformatorenwerk, Siemens AG, Nuremberg, Germany
fDate :
10/1/1999 12:00:00 AM
Abstract :
The transfer function concept is well known as an additional method of evaluating the impulse test of power transformers in the test laboratory, Another application for this method is monitoring of power transformers in service. According to the method of how to measure transient signals for the calculation of transfer functions, two kinds of monitoring can be distinguished: off-line and on-line monitoring. Both kinds of monitoring as well as their influencing factors are discussed with on-site measurements on power transformers in service
Keywords :
impulse testing; monitoring; power transformer testing; transfer functions; transient analysers; voltage measurement; impulse test; off-line monitoring; on-line monitoring; on-site measurements; power transformers monitoring; transfer function method; transient recorder; transient signals measurement; voltage measurement; Circuit faults; Gases; Impulse testing; Laboratories; Monitoring; Optical sensors; Power measurement; Power transformers; Temperature sensors; Transfer functions;
Journal_Title :
Power Delivery, IEEE Transactions on
