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고병훈(Byeonghun Ko),박영(Young Park),권삼영(Samyoung Kwon),정호성(Hosung Jung),박현준(Hyun-June Park),김창희(Changhee Kim) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
This paper describes the various wavelengths of electrical arc on overhead contact line for improvement of the current collection performance. The tests are performed with the arc measuring device and a welding machine to generate electrical arc artificially. The experimental result shows the electrical arc on overhead contact line and pantograph could be analyzed by artificial discharge
고병훈(Byeonghun Ko),박현준(Hyun-June Park),권삼영(Sam-Young Kwon),나해경(Hae Kyung Na),이형우(Hyung-Woo Lee) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
With the development of high speed railway, traction motors play a critical role in the operation of railway vehicle. This paper describes the use of 1000 pF coupler as a on-line partial discharge (PD) measurement for the assessment of railway traction motor. The PD tests are performed with developed PD analyzer and the 5 model coils such as thermal, electrical, mechanical and environmental aging respectively at various AC voltages. On-line PD tests using 1000 pF couplers show that PD patterns can be detected successfully at 2.3 kV.