Title:
電動機械の高電圧固定子コイル内の電位差緩和構造
Document Type and Number:
Japanese Patent JP2013505700
Kind Code:
A
Abstract:
A voltage grading structure (40) as may be used in the stator coils of an electromotive machine is provided. A filler material (44) may be disposed on a top surface and a bottom surface of a stack of coil strands (22). The voltage grading structure may include an electrical isolation layer (46) on the filler material and may further include an electrically conductive layer (48) on the electrical isolation layer. An electrically conductive bar (50) is positioned on the electrically conductive layer. The conductive bar is electrically connected to at least one of the coil strands (22) to shunt a capacitance effect between the conductive layer and the stack of coil strands and force the conductive layer to be substantially at a common voltage level relative to the stack of coil strands and thereby avoid an overvoltage condition.
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Inventors:
Emery, Franklin Tea
Application Number:
JP2012529761A
Publication Date:
February 14, 2013
Filing Date:
June 22, 2010
Export Citation:
Assignee:
Siemens Energy Incorporated
International Classes:
H02K3/40; H02K9/08
Domestic Patent References:
| JPH0226356U | 1990-02-21 | |||
| JP2004266964A | 2004-09-24 | |||
| JPH077878A | 1995-01-10 |
Foreign References:
| US20050029893A1 | 2005-02-10 |
Attorney, Agent or Firm:
Iwao Yamaguchi
Hiroshi Yamamoto
Hiroshi Yamamoto