EP 1723435 A1 20061122 - ENERGY METER SYSTEM AND METHOD FOR CALIBRATION
Title (en)
ENERGY METER SYSTEM AND METHOD FOR CALIBRATION
Title (de)
ENERGIEZ HLERANORDNUNG UND VERFAHREN ZUM KALIBRIEREN
Title (fr)
SYSTEME COMPTEUR D'ENERGIE ET PROCEDE DE CALIBRAGE
Publication
Application
Priority
- EP 2005002264 W 20050303
- DE 102004010707 A 20040304
Abstract (en)
[origin: WO2005085881A1] The invention relates to an energy meter system with two inputs (1, 2) to which signals are supplied that depend on an electrical voltage (V) and an electric current (I). These signals are digitized and interlinked in A/D converters (3, 4). In order to correct phase deviations which can be caused by means for coupling in the signals (14, 16), a phase evaluation block (9) is connected to the outputs of the A/D converters. The phase evaluation bloc (9) controls a phase correction block (6) on the output of an A/D converter (4). Phase evaluation can be carried out in the digital signal processing unit, thereby making it possible to easily carry out a cost-effective compensation of phase errors in such a way that is possible to carry out a galvanic separation while avoiding errors of measurement at the input. The inventive energy meter system is especially suited for implementation into integrated circuit technology.
IPC 8 full level
G01R 21/06 (2006.01); G01R 21/08 (2006.01); G01R 21/133 (2006.01); G01R 35/04 (2006.01)
CPC (source: EP US)
G01R 21/06 (2013.01 - EP US); G01R 21/133 (2013.01 - EP US); G01R 35/04 (2013.01 - EP US)
Citation (search report)
See references of WO 2005085881A1
Designated contracting state (EPC)
FR
DOCDB simple family (publication)
WO 2005085881 A1 20050915; DE 102004010707 A1 20050922; DE 102004010707 B4 20130822; EP 1723435 A1 20061122; US 2007200552 A1 20070830; US 7474087 B2 20090106
DOCDB simple family (application)
EP 2005002264 W 20050303; DE 102004010707 A 20040304; EP 05733931 A 20050303; US 59103105 A 20050303