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초록
For eliminating power frequency and its harmonic components from the waveforms of test current and ground potential rise in the measuring process of grounding impedance, high power variable-frequency inverter and band-pass filter were applied. The square wave current was injected to the test grounding grid to analyze the grounding impedance dependence on the frequency.
- 제목
- A novel method for measuring the impedance of grounding grids using a variable-frequency inverter
- 제목 (타언어)
- 가변주파수 인버터를 이용한 접지임피던스의 새로운 측정기법
- 저자
- BOK HEE LEE
- 학회명
- proceedings of the ⅩⅢth International Symposium on High Voltage Engineering