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发明公开
CN108802581A 基于糠醛平衡模型的变压器固体绝缘老化评估方法 无效 - 驳回

基于糠醛平衡模型的变压器固体绝缘老化评估方法
摘要：
本发明提供一种基于糠醛平衡模型的变压器固体绝缘老化评估方法，主要包括以下步骤：检测变压器运行中绝缘油的糠醛含量；检测变压器油温及绝缘油含水量并评估绝缘纸含水量；将绝缘油中糠醛含量、绝缘油温度、纸中含水量代入基于糠醛平衡模型的糠醛‑聚合度方程，计算绝缘纸聚合度；根据聚合度评估变压器固体绝缘老化程度。本发明方法首次将糠醛平衡对油中糠醛含量的影响考虑到变压器固体绝缘老化评估中，可以消除外界条件（绝缘油温度、绝缘纸含水量）绝缘老化评估的干扰。
摘要（英）：

The invention provides a transformer solid insulation aging evaluation method based on a furfural balance model. The method mainly includes following steps: detecting furfural content of insulating oil when a transformer runs; detecting oil temperature of the transformer and water content of the insulating oil, and evaluating water content of insulating paper; substituting the furfural content inthe insulating oil, temperature of the insulating oil and the water content in the paper into a furfural-polymerization degree equation based on the furfural balance model, and calculating polymerization degree of the insulating paper; evaluating solid insulating aging degree of the transformer according to the polymerization degree. The method takes impact of furfural balance on the furfural content into consideration of solid insulating aging evaluation of the transformer for the first time, and interference of outside conditions (the temperature of the insulating oil and the water content of the insulating paper) on insulating aging evaluation can be eliminated.

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