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发明授权
CN106650084B 一种极寒条件下变压器抗短路能力的校核方法 有权

一种极寒条件下变压器抗短路能力的校核方法
摘要：
本发明公开了一种极寒条件下变压器抗短路能力的校核方法，包括以下步骤：1)计算极寒条件下变压器中绝缘垫块的弹性模量Em，并计算极寒条件下变压器中线圈的弹性模量E，根据极寒条件下变压器中绝缘垫块的弹性模量Em计算变压器工作过程中在变压器外线圈引起的总应力，根据极寒条件下变压器中线圈的弹性模量E计算变压器工作过程中在变压器内线圈引起的总应力，完成极寒条件下变压器抗短路能力的校核，该方法能够对极寒条件下变压器的短路能力进行校核。
摘要（英）：

The invention discloses a checking method for short circuit resisting capacity of transformer under extremely cold condition, including the following steps. 1) An elastic modulus Em of insulation cushion block in a transformer under extremely cold condition is calculated and an elastic modulus E of coil in the transformer under extremely cold condition is calculated. Total stress caused by the transformer on an external coil of the transformer in working progress is calculated according to the elastic modulus Em of insulation cushion block in the transformer under extremely cold condition. Then total stress caused by the transformer on an inner coil of the transformer in working progress is calculated according to the elastic modulus E of coil in the transformer under extremely cold condition. Finishing the check of short circuit resisting capacity of transformer under extremely cold condition, the method can check the short circuit ability of the transformer under extremely cold condition.

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