A transfer function is a reliable tool for comparison of full- and chopped lightning impulse tests

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.311227· OSTI ID:7054625

Hanique, E

A new diagnostic tool nowadays available with digitally recorded waveforms by lightning impulse tests, is the so called transfer function. For the calculation of the transfer function, two waveforms are recorded. The first waveform is the impulse voltage and the second waveform is the impulse current. Both waveforms recorded in the time-domain are transformed to the frequency-domain and the transfer function is calculated. This paper proves that the transfer functions of a sequence of impulse tests with the same test circuit can be compared with each other. This issue has currently much attention all over the world. In the author's opinion, the differences found between transfer functions are mostly due to hard- and software which is not suitable for the determination of the transfer function. A statement about reliability is only possible if the used technology for determination of the transfer function is beyond any doubt. This paper compares the transfer functions of the full impulse waveform and the chopped impulse waveform on the same terminal of the transformer and test circuit, which is the worst case condition for the comparison, to prove that comparison of transfer functions is possible.

• OSTI ID: 7054625
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:3; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
EQUIPMENT
FUNCTIONS
LIGHTNING
PERFORMANCE TESTING
TESTING
TRANSFER FUNCTIONS
TRANSFORMERS
USES