【摘要】 报道了一种利用火石玻璃的法拉第效应制作的且已用于１１０ｋＶ变电站的光学电流互感器。该互感器的比差为±０．２％，在－１５℃～＋４０℃的温度范围内温度稳定性为±０．５％，带宽约为２．５ｋＨｚ。介绍了其基本原理、特点及性能。更多还原

【Abstract】 The principle and specific features of an optical current transducer utilizing the Faradayeffect of flint glass and developed for a 110 kV substation are described. Test results showthat the ratio error is ±0.2%, the temperature stability within a range from-15 ℃to+40 ℃is ±0.5%, and the bandwidth is approximately 2. 5 kHz. A short- circuit current of11. 8 kA(peak)has been measured with an accuracy of±3%。更多还原