COMPARATIVE STUDY OF VOLTAGE DEPENDENCE AND SELF HEATING IN PRECISION HV DIVIDER |
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| K. B. Ravat |
- Abstract:
- This paper focused to determination of Voltage dependence of Precision High Voltage divider and Self Heating of HV resistance. High Voltage resistive divider is a Primary standard of DC High Voltage measurements. The traceability of HV measurements is directly related to divider’s traceability, to scale the voltage from Josephson voltage standard, which is primary standard of DC voltage. The change in effective resistance ratio with Voltage depends upon self heating of resistance, electrostatic stress and leakage current. The design of divider and Precision source minimise the above factor which is also discussed in this paper. The relative ratio change due to High Voltage of HV divider in both positive and negative Polarity is about 0.1 ppm / kV.
- Keywords:
- HV divider, voltage dependence, self heating, stability, traceability
- Download:
- IMEKO-WC-2012-TC4-O25.pdf
- DOI:
- -
- Event details
- Event name:
- XX IMEKO World Congress
- Title:
Metrology for Green Growth
- Place:
- Busan, REPUBLIC of KOREA
- Time:
- 09 September 2012 - 12 September 2012