EP 3881085 A4 20220720 - VOLTAGE SENSOR AND APPARATUS
Title (en)
VOLTAGE SENSOR AND APPARATUS
Title (de)
SPANNUNGSSENSOR UND VORRICHTUNG
Title (fr)
CAPTEUR DE TENSION ET APPAREIL
Publication
Application
Priority
CN 2018115999 W 20181116
Abstract (en)
[origin: WO2020097933A1] Embodiments of present disclosure relate to a voltage sensor(10) and an apparatus(11) including the voltage sensor(10). The voltage sensor(10) comprises a first capacitor(12) configured to receive a first voltage for a first phase of an alternating current supply system(1), a second capacitor(14) coupled between the first capacitor(12) and a reference voltage and configured to generate a second voltage based on the first voltage; and a transformer(16) comprising a first winding(164) coupled in parallel to the second capacitor(14) and a second winding(166) magnetically coupled to the first winding(164), the transformer(16) configured to generate a third voltage directly for a field testing unit without conversion of voltage by a further transformer. The third voltage is based on the second voltage and below the second voltage.
IPC 8 full level
G01R 15/18 (2006.01); G01R 15/16 (2006.01); G01R 19/00 (2006.01); G01R 31/42 (2006.01)
CPC (source: EP)
G01R 15/16 (2013.01); G01R 15/18 (2013.01); G01R 31/42 (2013.01)
Citation (search report)
- [XYI] CN 108646082 A 20181012 - JIANGSU JINGJIANG TRANSF CO LTD
- [Y] US 2018136257 A1 20180517 - STEUER RONALD [AT], et al
- See also references of WO 2020097933A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020097933 A1 20200522; CN 112997086 A 20210618; EP 3881085 A1 20210922; EP 3881085 A4 20220720
DOCDB simple family (application)
CN 2018115999 W 20181116; CN 201880099410 A 20181116; EP 18939915 A 20181116