近日,上海追日电气有限公司为九华山风景区索道系统设计并制造的ZAPF-200/400型并联有源电力滤波装置调试取得巨大成功,电流畸变率(THDi)由最大67.8%降到6%左右,电压畸变率(THDu)由最大5.5%降到1.2%,谐波滤除率达到 Recently, Shanghai Chai Ri Electric Co., Ltd. for Jiuhuashan scenic cableway system designed and manufactured ZAPF-200/400 parallel active power filter device commissioning a great success, the current distortion rate (THDi) from 67.8% to 6% , The voltage distortion rate (THDu) dropped from 5.5% to 1.2%, the harmonic filtering rate reached