Abstract
Impulse voltage calibration is specified in IEC 61083-1 as a reference calibration method for the digital recorder used in the impulse voltage measuring system. In the IEC publication, requirements for the impulse calibrators are also stated as having uncertainties: <±0.7% for peak value and <±2% for front time and time-to-half value. These values are, however, applied for the calibrators used in the approved measuring system. In our work, a high performance impulse calibrator, which could be used even in the national standard class measuring system as well as the reference measuring system, has been developed. The developed calibrator's performance has been evaluated to be able to generate an impulse voltage with very small uncertainties: <±0.4% for peak value and <±1.2% for front time and time-to-half value.
