直流偏磁条件下电力变压器铁心B-H曲线及非对称励磁电流

, PP. 46-51

Keywords: 直流偏磁,B-H曲线,偏置磁通,模型试验,非对称励磁电流

Full-Text   Cite this paper   Add to My Lib

Abstract:

基于变压器铁心的直流偏磁特性提出了一种有效获取大型电力变压器直流偏磁条件

References

[1]	王祥珩, 徐伯雄. 变压器的偏磁问题[J]. 变压器, 1992, 19(8): 11-14.
[2]	钟连宏, 陆培均, 仇志成, 等. 直流接地极电流对中性点直接接地变压器影响[J]. 高电压技术, 2003, 29(8): 12-13, 28.
[3]	Cheng Z, Hao R, Takahashi N, et al. Engineering- oriented benchmarking of problem 21 family and experimental verification[J]. IEEE Trans. on Magn., 2004, 40(2):1394-1397.
[4]	Lahtinen M, Elovaara J. GIC occurrences and GIC test for 400kV system transformer[J]. IEEE Trans. on Power Delivery, 2002, 17(2): 555-561.
[5]	曾连生. 直流接地极电流对电力变压器的影响[J].电力建设, 2004, 25(12): 22-24.
[6]	尚春. HVDC地中电流对交流变压器影响的抑制措施[J]. 高电压技术, 2004, 30(11): 52-54.
[7]	Takasu N, Oshi T, Miyawaki F, et al.An experimental analysis of DC exitation of transformers by geomagnetically induced currents[J]. IEEE Trans. on Power Delivery, 1994, 9(2): 1173-1179.
[8]	李晓萍. 变压器直流偏磁问题的研究[D]. 武汉: 武汉大学, 2006.
[9]	Price P R. Geomagnetically induced current effects on transformers[J]. IEEE Trans. on Power Delivery, 2002, 17(4): 1002-1008.
[10]	Picher P, Bolduc L, Dutil A, et al. Study of the acceptable DC current limit in core-form power transformers[J]. IEEE Trans. on Power Delivery, 1997, 12(1): 257-263.
[11]	Yoshida T, Nakano M, Miyagi D, et al. Development of measuring equipment of DC-biased magnetic properties using open type single sheet tester[J]. IEEE Trans. on Magn., 2006, 42(10): 2846-2848.

Full-Text