Major loop current measuring device for high-voltage direct current transmission converter valve, has integrating circuit whose output is connected with voltage divider, where output of voltage divider outputs measuring signal

Y. Cheng (Inventor), Chunyu Zhang (Inventor), X. Zhang (Inventor), Y. Li (Inventor), C. Li (Inventor)

Research output: Patent


The device has a magnetic core (2a) arranged with coil (5a) and placed in a shielding shell (1a). Another magnetic core (2b) is arranged with another coil (5b). The latter magnetic core, an integrating circuit (3) and a voltage divider (4) are arranged in another shielding shell (1b). An input of the integrating circuit and the latter shielding are connected with the latter coil. An output of the integrating circuit is connected with the voltage divider. An output (13) of the voltage divider outputs a measuring signal. A magnetic fixture (6a) is arranged in the former shielding shell.
Original languageEnglish
Patent numberCN101907651-B
Filing date12/03/2014
Priority date25/06/2010
Priority numberCN10214584
Publication statusPublished - 2014
Externally publishedYes

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