• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2012.10a
• /
• pp.573-576
• /
• 2012

We have analyzed the induction effects by separation distance between the power feeding station and the telecommunication cables. To do this we measured the induced voltage in 11 sections(10km) between Jangseong and Imgok at Jeon-nam province using telecommunication cable installed nearby KTX's feeder line. Sub-section has about 1km length of telecommunication cable. And we used normalization method in installed length of telecommunication cables and mutual inductance to analysis the induction effects more rationally.

• Proceedings of the KIEE Conference
• /
• 2002.07b
• /
• pp.1261-1263
• /
• 2002

In the aspect of economy and safety, it is essential to the decision of H-beam suitable for the condition of environment, installation, track etc. This paper presents a development of automatic design program to decide the size of H-beam according to the input condition.

• Proceedings of the KIEE Conference
• /
• 2002.07b
• /
• pp.1258-1260
• /
• 2002

This paper presents a fitting algorithm for automatic design of cantilever. Through this algorithm, CaLeCa which is automatic calculation software of cantilrver fitting is developed.

• Proceedings of the KIEE Conference
• /
• 2005.05b
• /
• pp.75-78
• /
• 2005

The decisive criteria to determine collection performance is the contact force between pantograph and catenary. The contact force consists of a static force and dynamic force related to vibration characteristics, train speed and etc. The low contact force leads to the loss of contact, and most countries regulate it below 1% at operation speed. This study presents a technical overview of criteria for collection performance of catenary system.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2012.10a
• /
• pp.717-718
• /
• 2012

• Proceedings of the KSR Conference
• /
• 2010.06a
• /
• pp.1924-1929
• /
• 2010

In long tunnel If we reduce the length of system height on catenary system, tunnel construction cost is cut down. It is because of tunnel section curtailment. So that we have review reduction of system height according to tunnel section. We have designed reduction of system height considered characteristics of overhead contact systems within UIC 799 code.

• Proceedings of the KIEE Conference
• /
• 2002.04a
• /
• pp.257-259
• /
• 2002

This study presents a development of DeCatS which is software to design high speed catenary system automatically. This is developed by KRRI with the support of KHSR. This paper presents a process of developing this S/W and a comparison with LEXCAT is demonstrated a preciseness of this.

• Proceedings of the KIEE Conference
• /
• 2002.04a
• /
• pp.263-265
• /
• 2002

This paper presents a design method of database to manage materials having hierarchical structure on Kyungbu high-speed catenary system. Through this method, the automatic management software was developed. The software can get to find out assemblies as well as single fittings used in a section.

• Proceedings of the KSR Conference
• /
• 2001.05a
• /
• pp.341-346
• /
• 2001

This paper presents a concept design of detail design software for high speed catenary system. In this software, M.D.(mounting diagram) can be peformed and parts D/B can be also managed. french one, used in Kyung-bu high-speed line, is not good at user's interface, and the source code is not opened. So, it is impossible to use it in the different environment and catenary system. Through this program, automation of detail design and user's convenience can be derived.

• Proceedings of the KIEE Conference
• /
• 2007.07a
• /
• pp.1161-1162
• /
• 2007

In year 2004 korea runs high speed train KTX for the 5th time in the world. And now the traction power system is quite stabilized. But still a lot of work to develop and abnormal voltage problem is one of them. In this paper, by actual measuring we have collected the abnormal data on the high speed train sub-staion for more than 15 days. The collected data has been evaluated. In the near future collected data will be used planing a countermeasure.