EP 3151255 A1 20170405 - CURRENT TRANSFORMER WITH ADDITIONAL VOLTAGE INDICATION FOR THE USE IN MEDIUM OR HIGH VOLTAGE EQUIPMENT
Title (en)
CURRENT TRANSFORMER WITH ADDITIONAL VOLTAGE INDICATION FOR THE USE IN MEDIUM OR HIGH VOLTAGE EQUIPMENT
Title (de)
STROMWANDLER MIT ZUSÄTZLICHER SPANNUNGSANZEIGE ZUR VERWENDUNG IN MITTEL- ODER HOCHSPANNUNGSANLAGE
Title (fr)
TRANSFORMATEUR DE COURANT AVEC INDICATION DE TENSION SUPPLÉMENTAIRE POUR UNE UTILISATION DANS UN ÉQUIPEMENT À MOYENNE OU HAUTE TENSION
Publication
Application
Priority
EP 15188241 A 20151002
Abstract (en)
The invention relates to a Current transformer with an additional voltage indicating functionality or for the use in medium or high voltage equipment, with primary terminals and primary conductors and a secondary circuit, according to the preamble of claim 1. In order to reduce the number of needed parts, and to support standardization, in the manufacture of the current transformer, the invention is, that beside the secondary circuit a shielded output wire (4) is arranged in such, that the output wire (4) is electrically connected to the end of discrete primary capacitor (C1), where capacitor (C1) is connected between the primary conductor (2) and the output wire (4) and defines the capacitance between the primary conductor (2) and the output wire (4), shielding (4') of output wire (4) is connected to a ground terminal (6).
IPC 8 full level
H01F 27/28 (2006.01); H01F 27/36 (2006.01); H01F 38/28 (2006.01)
CPC (source: CN EP US)
H01F 27/363 (2020.08 - CN EP US); H01F 27/402 (2013.01 - CN); H01F 38/28 (2013.01 - EP); H01F 27/402 (2013.01 - EP)
Citation (search report)
- [XI] JP S57167612 A 19821015 - MITSUBISHI ELECTRIC CORP
- [X] US 3500197 A 19700310 - CONSTABLE JAMES M
- [A] US 2011043999 A1 20110224 - JOHNSTON DAVID FULTON [US], et al
- [A] EP 2693223 A1 20140205 - ABB TECHNOLOGY AG [CH]
- [A] DE 4123812 A1 19930121 - BOSCH GMBH ROBERT [DE]
- [A] EP 2703208 A1 20140305 - ABB TECHNOLOGY AG [CH]
- [A] WO 0243148 A2 20020530 - UNIV CARNEGIE MELLON [US]
- [A] US 2969460 A 19610124 - ROWLEY ROBERT J
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3151255 A1 20170405; EP 3151255 B1 20240605; CN 106560903 A 20170412; CN 106560903 B 20190719
DOCDB simple family (application)
EP 15188241 A 20151002; CN 201610847741 A 20160923