ADJUSTABLE VOLTAGE SENSOR

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20220317158A1
SERIAL NO

17753328

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Voltage sensor (1) comprising a voltage divider (40) for sensing an AC voltage of a HV/MV power conductor (10). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion (60) comprises one or more low-voltage impedance elements (110), a plurality of adjustment impedance elements (80) and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (110). The overall impedance of the high-voltage portion (50) and the overall impedance of the low-voltage portion (60) of the voltage divider (40) are adapted such that, by bringing one or more of the switches (90) into their connect state, the voltage divider (40) has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahlmann, Willy A Neuss, DE 1 6
Bund, Christine B Wuppertal, DE 26 486
Eggert-Richter, Sebastian Wülfrath, DE 6 19
Fink, Johannes Bergheim, DE 16 45
Gravermann, Mark Erkelenzq, DE 30 177
Gunjaca, Mirco Nottuln, DE 6 6
Schubert, Bernd Köln, DE 19 209
Stalder, Michael H Uedem, DE 21 142
Stollwerck, Gunther A J Krefeld, DE 15 24
Weichold, Jens Erkelenz, DE 32 233
Westkamp, Harald Hattingen, DE 8 106
Zilligen, Guenter M Grevenbroich, DE 12 61

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