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1. WO2010081280 - THREE-PHASE ELECTRIC ENERGY MEASUREMENT APPARATUS

Publication Number WO/2010/081280
Publication Date 22.07.2010
International Application No. PCT/CN2009/001429
International Filing Date 11.12.2009
IPC
G01R 22/10 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
22Arrangements for measuring time integral of electric power or current, e.g. electricity meters
06by electronic methods
10using digital techniques
G01R 21/133 2006.01
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
21Arrangements for measuring electric power or power factor
133by using digital technique
CPC
G01R 15/142
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
142Arrangements for simultaneous measurements of several parameters employing techniques covered by groups G01R15/14 - G01R15/26
G01R 21/06
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
21Arrangements for measuring electric power or power factor
06by measuring current and voltage
G01R 21/133
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
21Arrangements for measuring electric power or power factor
133by using digital technique
Applicants
  • 中国计量科学研究院 NATIONAL INSTITUTE OF METROLOGY P. R.CHINA [CN]/[CN] (AllExceptUS)
  • 张志高 ZHANG, Zhigao [CN]/[CN] (UsOnly)
  • 郑志受 ZHENG, Zhishou [CN]/[CN] (UsOnly)
  • 瞿清昌 QU, Qingchang [CN]/[CN] (UsOnly)
Inventors
  • 张志高 ZHANG, Zhigao
  • 郑志受 ZHENG, Zhishou
  • 瞿清昌 QU, Qingchang
Agents
  • 中国国际贸易促进委员会专利商标事务所 CCPIT PATENT AND TRADEMARK LAW OFFICE
Priority Data
200910000667.013.01.2009CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) THREE-PHASE ELECTRIC ENERGY MEASUREMENT APPARATUS
(FR) APPAREIL TRIPHASÉ DE MESURE D'ÉNERGIE ÉLECTRIQUE
(ZH) 三相电能测量装置
Abstract
(EN)
A three-phase electric energy measurement apparatus includes a voltage detecting unit (I/V2), for detecting every phase voltage of which line it is located, a current detecting unit (I/V1), for detecting every phase current of which line it is located, an energy measuring and computing unit (M7), connected with the voltage detecting unit (I/V2) and current detecting unit (I/V1), for receiving the output signals from the current detecting unit (I/V1) and voltage detecting unit (I/V2), and carrying out signal process and operation, and then outputting the measuring and computing result. The voltage detecting unit (I/V2) and the energy measuring and computing unit (M7) are respectively connected in star mode, and form a common virtual ground.
(FR)
Appareil triphasé de mesure d'énergie électrique, comprenant une unité (I/V2) de détection de tension destinée à détecter chaque tension de phase de la ligne sur laquelle elle est située, une unité (I/V1) de détection de courant destinée à détecter chaque courant de phase de la ligne sur laquelle elle est située, une unité (M7) de mesure et de calcul d'énergie reliée à l'unité (I/V2) de détection de tension et à l'unité (I/V1) de détection de courant, destinée à recevoir les signaux de sortie issus de l'unité (I/V1) de détection de courant et de l'unité (I/V2) de détection de tension, qui réalise un traitement et des opérations sur lesdits signaux puis émet en sortie le résultat des mesures et des calculs. L'unité (I/V2) de détection de tension et l'unité (M7) de mesure et de calcul d'énergie sont respectivement reliées en étoile et forment une masse virtuelle commune.
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