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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Anan, F. Ikumi, S. Shimada, S. Nishiwaki, S. Noro, Y. Yokota, T. Yamamoto, K. |
| Copyright Year | 2004 |
| Description | Author affiliation: Kyushu Electr. Power Co. Inc., Fukuoka, Japan (Anan, F.; Ikumi, S.; Shimada, S.) |
| Abstract | Kyushu Electric Power Co. has commenced construction of substations for the 54-km, 66 kV AC submarine cable transmission system, which will be the longest in Japan. The system is scheduled to go into operation in 2005. There are many problems attendant to the use of a long-distance cable, including voltage fluctuations, current-zero-miss phenomena accompanying reactor equipment, absorbing the discharge energy caused by large capacitance to ground, and resonance overvoltages. Japan's 66-154 kV systems are non-effectively grounded systems. An overvoltage of the sound phases due to a single-phase ground fault is liable to become particularly high in a cable system. Also, the current power factor when a ground fault occurs deteriorates, and detection of the directional ground relay becomes difficult. A study of various special phenomena was carried out with the aim of preventing overvoltage in the event of a single-phase ground fault, preventing resonance, and ensuring correct operation of the directional ground relay, by means of appropriate zero sequence compensation. Also, economical positive sequence compensation was adopted. The current-zero-miss was prevented by a modification in the zero sequence compensation grounding transformer. The surge arrester used had special specifications in order to cope with large discharge energy. The 220/66 kV-150 MVA main transformer was designed to have high impedance, in order to avoid resonance at the 5/sup th/ harmonic (300 Hz). |
| Starting Page | 490 |
| Ending Page | 495 |
| File Size | 595498 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780384652 |
| DOI | 10.1109/PES.2004.1372849 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-06-06 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Substations Surges Resonance Underwater cables Voltage fluctuations Inductors Capacitance Reactive power Fault detection Power system relaying |
| Content Type | Text |
| Resource Type | Article |
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