Title of article
Influence of switching conditions on the VFTO magnitudes in a GIS
Author/Authors
Kumar، نويسنده , , V.V.، نويسنده , , Thomas، نويسنده , , J.M.، نويسنده , , Naidu، نويسنده , , M.S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
6
From page
539
To page
544
Abstract
Estimation of Very Fast Transient Overvoltage
(VFTO) has been carried out using EMTP for various switching
conditions in a 420 kV gas insulated substation. The variation
of VFTO peak along the GIS bus nodes for disconnector and
circuit breaker switching operations as well as the variation of
VFTO peak with different magnitudes of trapped charges have
been studied. The results indicate a distinct pattern of variation
of VFTO peak along the nodes of the GIS bus in the case of
disconnector switch operation as compared to that of circuit
breaker operation. It has also been noticed that the variation of
VFTO peak levels are not in direct proportion to the trapped
charge present on the HV bus.
Keywords
Disconnector switch , EMTP , Gas insulated substation , trapped charge , very fast transient overvoltages.
Journal title
IEEE TRANSACTIONS ON POWER DELIVERY
Serial Year
2001
Journal title
IEEE TRANSACTIONS ON POWER DELIVERY
Record number
400232
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