本論文旨在瞭解各種常用於工業界電動機匯流排的〝同時性快速轉供〞與〝順序性快速轉供〞模式之特點、差異性與其應用時之參考要素等探討說明；接著應用電動機殘餘電壓理論推導模擬模型以驗證〝同時性快速轉供〞模式應用於核電廠緊要匯流排之適用性；最後以現場實測數據依影響電源轉供復閉因素逐一分析與差異比對，以探討〝同時性快速轉供〞在緊要匯流排運轉於系統擾動情況下操作，評估既有的轉供及監測機制之優缺點與安全性並提出具體改善對策，以供業者提升既設或新設緊要匯流排轉供規劃之考慮要因與可靠度。
從現場實測與模擬分析結果顯示，〝同時性快速轉供〞在停電時間(Toff)、殘餘電壓頻率(Hz)、殘餘電壓最終值(pu)及背對背合成電壓(Vr)皆表現較佳的效能；縱使〝同時性快速轉供〞處於發電機電氣異常後電壓偏低之嚴苛之條件下亦能有較佳效能之表現。
另外由實測記錄分析顯示，經由〝磁吹斷路器於啟斷三相負載電流具有延時滅弧特性〞亦是影響轉供操作期間影響電源復閉角度之因素。也驗證IEEE Std 666-1991要求〝快速轉供需搭配使用儲能操作之高速型斷路器，5週波斷路器〞才有足夠之時間餘裕供〝磁吹斷路器之延時斷弧〞之要求；因此，斷路器動作時間之性能檢測及其接受準則，必需納入運轉及維修策略中，以確保電源轉供之成效。

The purpose of the thesis is to evaluate whether "simultaneous fast transfer scheme" is a good mode for essential bus fast transfer operation and what is the most influential factor in the simultaneous fast transfer scheme.
For comparison, "sequential fast transfer scheme" is used, parameters of both the simultaneous fast transfer scheme and the sequential fast transfer scheme were feed into a fast transfer simulation model which is derived from theory of induction motor residual voltage. Field test operation data of simultaneous fast transfer scheme from a nuclear power station’s essential bus simultaneous fast transfer system and actual operating data from another nuclear power station essential bus fast transfer system’s sequential fast transfer scheme were obtained. Comparisons of the simulated and the nuclear plant operation results both show that the magnitude of the dad-bus time (Toff) and resultant voltage(Vr) in simultaneous fast transfer scheme are about half of the magnitude in the sequential fast transfer scheme indicating that the simultaneous fast transfer scheme is a better scheme. Also, in the simulated and the recorded actual operation of generator loss of excitation which will cause excessive voltage deviation between the generator terminal and the offsite power system, the performance of simultaneous fast transfer scheme is better than the sequential fast transfer scheme’s.
The simulation and the actual nuclear plant operations results also show that the most influential factor in the simultaneous fast transfer mode is the arcing distinguishes time at zero crossing in magnet-blast circuit breaker. This means that a fast-acting, energy-stored breaker (less than 5 cycles breaker) is a principal need. Finally, the breaker operating time check and field test are essential concern during periodical maintenance schedule.

[1] Roger H. Daugherty, "Bus transfer of AC induction motor: A perspective", IEEE Transaction on Industry Applications, Vol. 26, No. 5, pp. 219~227, September/October 1990.
[2] USNRC Information Notice 95-33, "Switchgear Fire and Partial Loss of Offsite Power at Waterford Generating Station, Unit 3" August 23, 1995.
[3] Subinoy Mazumdar, Matthew Chiramal, "Bus transfer practices at nuclear plants", IEEE Transactions on Power Delivery, Vol. 6 Issue: 4, pp. 1438~1443, October 1991.
[4] 鄭強，「感應電動機匯流排快速轉供策略分析及評估」，國立台灣工業技術學院，電機工程技術研究所碩士論文，民國九十二年六月三十日。
[5] 張偉能，李繼瑋，王丕忠，蔡奇生，「具不同負載轉矩特性感應電動機之殘餘電壓衰減探討」，中華民國第26屆電力工程研討會，第 1654 ~ 1659頁，中壢，台灣，民國九十四年十二月。
[6] J. C. Das, "Effects of momentary voltage dips on the operation of induction and synchronous motors", IEEE Transactions on Industry Applications, Volume 26, Issue 4, pp. 711 – 718, July- August 1990.
[7] G. W. Bottrell, L. Y. Yu, "A new fast bus-transfer system", Industrial and Commercial Power Systems Technical Conference, 1988. Conference Record, Papers Presented at the 1988 Annual Meeting, pp. 105 – 109, May 1988.
[8] ABB, Asynchronous motor transient simulation (AMTS).
[9] IEEE Std 666, "IEEE Design Guide for Electric Power Service System for Generating Stations", pp. 31~ 38, 1991.
[10] American National Standard C50.41-1982, "Polyphase Induction Motor for Power Generating Stations".
[11] Chee-Mun Ong, Dynamic Simulation of Electric Machinery, USA, Prentice-Hall, Inc., pp. 167~189, 234~235, 1998.
[12] 石金福，「二次選擇型變電所匯流排自動切換控制策略之研究」，國立台灣工業技術學院，電機工程技術研究所博士論文，民國八十四年七月十四日。
[13] Donald L. Hornak, Donald W. Zipse, "Automated bus transfer control for critical industrial processes", IEEE Transactions on Industry Applications, Vol. 27, No. 5, September/October 1991.
[14] T. A. Higgins, P. L. Young, W. L. Snider, H. J. Holley, "Report on bus transfer. II. computer modeling for bus transfer studies", IEEE Transactions on Energy Conversion, Volume 5, Issue 3, pp.470 – 476, September 1990.
[15] Sarma S. Mulukutla, Edward M. Gulachenski, "A critical survey of considerations in maintaining process continuity during voltage dips while protecting motors with re-closing and bus-transfer practices", IEEE Transactions on Power Systems, Volume 7, Issue 3, pp.1299 – 1305, August 1992.
[16] Gill G. Richards, "Reduced order models for an induction motor group during bus transfer", IEEE Transactions on Power Systems, Volume 4, Issue 2, pp.494 – 498, May 1989.
[17] Tomas R. Beckwith, Wayne G. Hartmann, "Motor bus transfer: considerations and methods", IEEE Transactions on Industry Applications, Volume 42, Issue 2, pp.602 – 611, March-April 2006.
[18] P. L. Young, W. L. Snider, T. A. Higging, H. J. Holley, "Report on bus transfer part III-full scale testing and evaluation", IEEE Transactions on Energy Conversion, Vol. 5, No 3 , pp.477 – 484, September 1990.
[19] H. J. Holley, T. A. Higgins, P. L. Young, W. L. Snider, "A comparison of induction motor for bus transfer studies", IEEE Transaction on Energy Conversion, Vol. 5, No. 2, pp. 310 – 319, June 1990.
[20] G. W. Bottrell, "Fast bus-transfer techniques for maintaining full plant production", Petroleum and Chemical Industry, Record of Conference Papers, Industrial Applications Society, 36-th Annual, pp. 229 -237, September 1989,.
[21] Pankaj Sharma, G. Subramanian, P. C. Tripathi, J. K. Chatterjee, S. C. Tripathy, "Analytical studies of voltage and current transients during fast bus transfer in A.C. auxiliary system of thermal power station", TENCON '91. 1991 IEEE Region 10 International Conference on EC3-Energy, Computer, Communication and Control Systems, Volume 1, pp. 372 – 376, August 28-30, 1991.
[22] 歐華科技公司，「ADX-3010 系統穩定分析儀說明書」。