Korea Electric Power Corporation

Korea Advanced Institute of Science and Technology

Dong Il Lee

Byung Tae Jang

You Jin Lee

Nam Ho Lee

Yong Ho An

Jong Kee Choi

Jeong Yeol Han

Eung Bo Shim

Yang Kyu Choi

Jang Hyun Choi

Gil Jo Jung

Myeong Lok Seol

In Hyuk Choi

Jeong Shik Ahn

The present invention relates to a method and device for generating an engineering topology of a digital substation. The method may include: generating, by a single line diagram generation module, a single line diagram of the digital substation based on input information regarding a plurality of substation component devices and connection relations therebetween; converting, by a topology conversion module, the single line diagram of the digital substation into an engineering topology conforming to international standards by use of conversion conditions stored in a topology component management module; verifying, by a topology verification module, whether the engineering topology is suitable for the digital substation based on the international standards; and generating, by an international standard file generation module, a single line diagram engineering file of the digital substation as a system specification description (SSS) by use of the verified engineering topology.

Method and device for generating engineering topology of digital substation

A manufacturing method of a triboelectric energy harvester, including the steps of generating an electrification material with a surface of a micro-nano pattern on an electrode and forming a coating electrification layer to support the micro-nano pattern on a surface of the electrification material, is provided.

Triboelectric energy harvester including coating electrification layer and manufacturing method thereof

A leakage current measurement apparatus for measuring leakage currents is disclosed. The leakage current measurement apparatus automatically selects one of non-inductive shunt resistors of 10&#x3a9;, 100&#x3a9;, and 1000&#x3a9; and measures leakage currents of an outdoor isolation material for an ultra-high voltage. Additionally, the leakage current measurement apparatus is capable of measuring a relatively wide range of leakage currents with a relatively high precision, even at a remote location, as a measurement range is automatically adjusted within measurement ranges preset by a user when leakage currents of an outdoor isolation material change, and being protected against a surge possibly generated by an ultra-high voltage. Also, it can remotely measure in real-time leakage currents of an outdoor isolation material installed at a remote location over Ethernet.

Apparatus for automatically measuring a relatively wide range of leakage currents

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Daejeon, South Korea

Dong Il Lee