Large-scale steamer generator neutral point lead-out mode and arrangement protecting method
Title：
Large-scale steamer generator neutral point lead-out mode and arrangement protecting method
Application Number：
 200510011443
Application Date：
 2005/03/18
Announcement Date：
 2005/09/07
Pub. Date：
 2007/11/14
Publication Number：
 1665093
Announcement Number：
 100349347
Grant Date：
 2007-11-14
Granted Pub. Date：
 2007-11-14
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H02H 7/06
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Gui Lin, Wang Xiangheng, Wang Weijian, Sun Yuguang
Key Words：
 steamer generator, neutral point, lead-out mode, arrangement protecting
Abstract：
 The invention is the drawing mode and protective configuring method for a neutral-point of large-scale steamer generator, belonging to the design and manufacture field of AC machine. On the premise of not changing terminal number on the neutral point side, it separately draws the second (or first) branches of an and B phases and mount them with branches TA, respectively, then connects the branches A1, B1, C1 and C2 (or A2, B2, C1 and C2) together to form the third terminal, mounted with branch TA, on the neutral point side; it can compose traditional incomplete vertical differential protection by the branches TA of the an and B phases and compose a novel differential protection solution by the branch TA of the C phase. By the complete internal failure simulation calculation and check of sensitivity of protection solution, the invention has the properties obviously prior to those of the traditional and need not add any hardware investment, having been confirmed by electric machine manufacturers.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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