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发明公开
CN104242241A YNd1变压器纵联差动保护电流相位补偿方法 无效 - 驳回

YNd1变压器纵联差动保护电流相位补偿方法
摘要：
本发明属于电力输配电网络的继电保护控制技术，涉及一种YNd1变压器纵联差动保护电流相位补偿的方法。其将YNd1接线变压器d侧a相TA二次绕组电流接入YNd11接线微机变压器差动保护d侧的a相电流回路；将YNd1接线变压器d侧c相TA二次绕组电流接入YNd11接线微机变压器差动保护d侧的b相电流回路；将YNd1接线变压器d侧b相TA二次绕组电流接入YNd11接线微机变压器差动保护d侧的c相电流回路；利用YNd11接线微机变压器差动保护装置的软件相位补偿，对YNd1接线变压器差动保护进行相位补偿。本发明能够完成YNd1接线变压器差动保护的电流相位补偿，并且原理简单、实施方便。
摘要（英）：

The invention belongs to relay protection and control technologies of electric power transmission and distribution networks, and relates to an YNd1 transformer longitudinal differential protection current phase compensation method. According to the method, a-phase TA secondary winding currents on the d side of an YNd1 wiring transformer are connected into an a-phase current loop on the d side of a YNd11 wiring microcomputer transformer differential protection device; c-phase TA secondary winding currents on the d side of the YNd1 wiring transformer are connected into a b-phase current loop on the d side of the YNd11 wiring microcomputer transformer differential protection device; b-phase TA secondary winding currents on the d side of the YNd1 wiring transformer are connected into a c-phase current loop on the d side of the YNd11 wiring microcomputer transformer differential protection device; software phase compensation of the YNd11 wiring microcomputer transformer differential protection device is used for conducting phase compensation on YNd1 wiring transformer differential protection. The YNd1 transformer longitudinal differential protection current phase compensation method can complete current phase compensation of YNd1 wiring transformer differential protection and is simple in principle and convenient to implement.

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