Lightning impulse voltage distribution over voltage transformer windings — Simulation and measurement
| Autor: | Viktor Milardić, Bojan Trkulja, Dalibor Filipović-Grčić, Ana Drandić, Igor Žiger, Tomislav Župan |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Leakage inductance Engineering Isolation transformer business.industry 020209 energy Linear variable differential transformer Flyback transformer Electrical engineering Energy Engineering and Power Technology Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology Distribution transformer 01 natural sciences Voltage transformers Numerical simulation Electromagnetic transients Impulse testing Coils Internal overvoltages 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering Autotransformer Electrical and Electronic Engineering Instrument transformer business Delta-wye transformer |
| Zdroj: | Electric Power Systems Research. 147:185-191 |
| ISSN: | 0378-7796 |
| DOI: | 10.1016/j.epsr.2017.02.024 |
| Popis: | This paper presents a fast and precise method for the calculation of internal voltage transients over the voltage instrument transformer windings. Lumped circuit parameters of the transformer winding are calculated using self-developed solvers based on the boundary element method and integral equations approach. A detailed equivalent circuit of the transformer winding is solved in time domain. Test model of the voltage instrument transformer is constructed with a number of measurement points along the windings. Results of the calculation are in a good agreement with the measured voltages. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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