一起风电场主变非电量保护误动事故的剖析及防范措施

A Wind Farm Main Transformer Non-electricity Protection Misoperation Accident Analysis and Arevention Measures

某风电场冬季主变非电量保护变压器温度保护动作。经检查确定为非电量保护误动作。由于风电场户外升压站运行环境恶劣，主变非电量保护误动的问题比较突出。冬季一般处于风电场高负荷期，风电场主变压器的这种误动给企业安全经济运行带来极大影响，同时也不利于电网的安全。通过这次误动作现场查找根源的过程，井对故障原因进行分析。结合风力发电场主变运行的特点和风电场运行环境特点，提出了风电场防止主变非电量保护误动的防范措施。为解决和防范同类问题提供参考。

the temperature protection action of main transformer in a certain wind farm in winter is not electric quantity protection. After checking to determine the non power protection. Due to the poor operating environment of the outdoor booster station of the wind farm, the problems of the main transformer protection and non electric quantity protection are outstanding. The winter wind farm generally in the high load period, the main transformer wind misoperation brings great influence to the economic operation of enterprise security, and is not conducive to the safety of power grid. Through the process of the malfunction of the scene to find the source, and analyzes the reasons of the fault. With the wind power field operation of main transformer and the characteristics of wind farm operation environment, the proposed wind farm to prevent the main transformer non electricity protection misoperation prevention measures. In order to solve and provide reference to prevent similar problems.