Title :
Three-phase four-wire floating-ground energy meter
Author :
Wen Fan ; Lixin Wang ; Ruifen Hou ; Zhigao Zhang ; Qingchang Qu
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
The 10kV, 35kV and 110kV/1000A ac energy meter based on three-phase four-wire floating-ground theory is described. The floating-ground safety protection design, Faraday shielding technique and dc self-supply method are integrated in those meters based on the new I/V, V/V techniques to realize high accuracy, reliability and wide linearity performance. The accuracy of 10kV, 35kV and 110kV energy meter is in the range of 0.2~0.5%.
Keywords :
Faraday effect; electric current measurement; phase meters; power meters; reliability; wires (electric); AC energy meter; DC self-supply method; Faraday shielding technique; I-V technique; V-V technique; current 1000 A; floating-ground safety protection design; reliability; three-phase four-wire floating-ground theory; voltage 10 kV; voltage 110 kV; voltage 35 kV; Accuracy; Energy measurement; Optical variables measurement; Power grids; Reliability; Safety; Voltage measurement; High voltage; energy meter; floating-ground; three-phase four-wire;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898381
