• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2009.11a
• /
• pp.229-229
• /
• 2009

This Impulse Voltage and Current Test System is designed for performing of impulse voltage tests with Lightning impulse voltage 1.2/50(LI) up to 1520kV peak value and switching impulse voltages 250/2500(SI) up to 1120kV peak valu acc. to IEC 60060-1, and furthermore for impulse current test, e.g. testing of arrester sections($U_{res}$=95kV)with current impulses 4/10 and 8/20 up to 70kA peak value.

• Proceedings of the KIEE Conference
• /
• 2003.10a
• /
• pp.261-263
• /
• 2003

This paper represents the development of national standard(NS) for switching impulse(SI) voltage measuring system rated 500 kV. A traceability of the NS to the international standard could be achieved by the intercomparison test with CSIRO of Australia. According to the IEC 60060-2, a measurement uncertainty was assessed. As a result of the tests, a measurement uncertainty and step response characteristics were satisfied with the requisite for NS.

• Proceedings of the KIEE Conference
• /
• 2007.07a
• /
• pp.1492-1493
• /
• 2007

This paper represents the development of national standard(NS) for switching impulse(SI) voltage measuring system rated 500 kV. A traceability of the NS to the international standard could be achieved by the intercomparison test with PTB(Physikalisch-Technische Bundesansalt). According to the IEC 60060-2, a measurement uncertainty was assessed. As a result of the tests, the measurement uncertainty and the characteristics of step response were satisfied with the requisite for NS.

• Proceedings of the KIEE Conference
• /
• 1996.07c
• /
• pp.1774-1777
• /
• 1996

In this paper, applicability of SI-PD(switching impulse - partial discharge) testing method was put on an attempt as a newly proposed diagnostic method for the underground distribution power cable system in Korea. For this purpose, SI-PD testing equipment was designed, and tests were performed using artificial needle-type defects integrated into the 22.9 kV CN/CV cables in drder to prove its reliability. As a result, arc noises, generated from spark gap, were considerably decreased by use of a pneumatic switch immersed into oil, and artificial needle-type defects were well detected with impulse voltage level under $2U_0$. These results imply that it is likely possible to apply SI-PD measurement method as a the nondistructive test for the 22.9 kV CN/CV cable system in Korea.