Method, system and device for acquiring transformer winding stay spacing
The invention discloses a method for obtaining winding stay spacing of a transformer, which comprises the following steps of: obtaining current peak value of the transformer when three-phase short circuit occurs; the current peak value being analyzed by finite element method, and the element electro...
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| Main Authors | , , , , |
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| Format | Patent |
| Language | Chinese English |
| Published |
04.01.2019
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention discloses a method for obtaining winding stay spacing of a transformer, which comprises the following steps of: obtaining current peak value of the transformer when three-phase short circuit occurs; the current peak value being analyzed by finite element method, and the element electromagnetic force of transformer winding in x, y and z directions being obtained; determining a straight side to be measured of the winding, and obtaining a load of the straight side to be measured according to the electromagnetic force of the unit; the load being applied on the winding, the deflectionof the winding being obtained, and the spacing of the struts being obtained according to the deflection. The invention can directly obtain the stress state when the winding is short-circuited throughthe finite element stress analysis, the optimum spacing between struts is obtained by electromagnetism and material mechanics, which is convenient for designers to analyze. Designers do not need to test the winding spacing be |
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| Bibliography: | Application Number: CN201811055733 |