DEVELOPMENT AND APPLICATION OF AN ON-SITE CALIBRATION METHOD FOR VOLTAGE TRANSFORMER TESTING SYSTEMS |
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| Jae Kap Jung, Sang Hwa Lee, Jeon Hong Kang, Sung Won Kwon, Young Tae Park |
- Abstract:
- The ratio error and phase displacement of a voltage transformer (VT) under test are measured by using a VT testing system that consists of a voltage source, a standard VT, a VT under test, a VT comparator, and a VT burden. Methods for on-site calibration of the components in industrial VT testing systems that do not require the removal of the components from the systems have been developed. Our method utilizes several portable travelling transfer standards: standard VTs, a calculable wide-ratio-error VT and a decade resistor. The travelling standard VT is used for the evaluation of an industrial standard VT and a voltage source. The calculable wide-ratio-error VT are used to evaluate the linearity of the errors in the industrial VT comparator. The decade resistor is used to evaluate the industrial VT burden. The on-site calibration method using these travelling transfer standards has been applied to the calibration of industrial VT testing systems.
- Download:
- IMEKO-TC4-2010-137.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- Instrumentation for the Information and Communication Technology Era
- Title:
- XVIIth IMEKO TC4 Symposium & 15th International Workshop on ADC Modelling and Testing (together with 3rd IMEKO TC19 Symposium)
- Place:
- Kosice, SLOVAKIA
- Time:
- 08 September 2010 - 10 September 2010