Title :
Development of HV DC standard in the JEMIC
Author :
Shimizu, K. ; Inoue, T. ; Shishido, K. ; Miyakoda, M. ; Yonesu, K. ; Nagai, K. ; Hirayama, H.
Author_Institution :
Japan Electr. Meters Inspection Corp., Tokyo, Japan
Abstract :
As a primary standard the HV divider of 200 kV rating (2 GΩ) made by Vishay Co. has been introduced. Its calibration method has been studied by two methods; resistance measuring method and comparison method with low voltage standard dividers. By using the latter method the calibration of ratios is simplified and the time needed to it is shortened. This method reflected the real state of current flow comparing with resistance method. And also the voltage coefficients and characteristics have been determined. The uncertainties of the standard divider have been estimated as better than 10 ppm (2σ) at 100 kV and 20 ppm (2σ) at 200 kV
Keywords :
HVDC power transmission; 100 kV; 2 Gohm; 200 kV; HV DC standard development; JEMIC; calibration method; comparison method; current flow; low voltage standard dividers; resistance measuring method; voltage characteristics; voltage coefficients;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990523
