Voltage Oscillation in Transformer Windings Affected by Very Fast Transient Surges
نویسندگان
چکیده
منابع مشابه
Estimation of Very Fast Transient Voltage Distribution in air-cored Pulsed Transformer Windings Based on FDTD Method
To study the voltage distribution in transformer windings under VFTO, a model for transformer windings has been developed based on Multi-conductor Transmission-Lines (MTLs) theory and the computing equations of the model based on FiniteDifference Time-Domain method (FDTD) is deduced. The Vector Fitting method is adopted to treat the frequency-dependent parameter by expanding the time-domain for...
متن کاملAnalysis of the Voltage Stresses on Transformer Windings under Different Type of Surges
Standard high voltage lightning and switching impulse tests are performed on Extra High Voltage (EHV) transformers during manufacture to ascertain the breakdown strength of insulation used. But during their service, transformers encounter numerous voltage transients of complex and varying wave shapes which do not necessarily resemble these standard surge type voltages. This paper reports the re...
متن کاملInternal Protection of Transformer Windings Against Transeint Surges Using ZnO Varistors
Power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. Once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. The resonant overvoltages may destroy the insulation between turns and cause to insul...
متن کاملInternal Protection of Transformer Windings Against Transeint Surges Using ZnO Varistors
Power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. Once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. The resonant overvoltages may destroy the insulation between turns and cause to insul...
متن کاملinternal protection of transformer windings against transeint surges using zno varistors
power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. the resonant overvoltages may destroy the insulation between turns and cause to insul...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Power and Energy
سال: 2000
ISSN: 0385-4213,1348-8147
DOI: 10.1541/ieejpes1990.120.5_766