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某核电厂主变压器投运后C相油中乙炔含量持续增涨,反映出主变压器内部存在局部放电缺陷,现场以局放在线监测技术对主变压器局部放电的频次、幅值等参数进行监视,实时掌握主变压器运行状况,确保该机组热试期间主变压器的安全、可控运行,避免恶性绝缘击穿突发事件的发生,为后期主变压器停电检修故障排查提供定位。
The acetylene content in C phase oil of a certain nuclear power plant put into operation continues to rise after the commissioning of the main transformer, which reflects the partial discharge defect in the main transformer. The on-line monitoring technique is used to monitor the frequency and amplitude of the partial discharge of the main transformer on- Real-time master the operation of the main transformer to ensure that the unit during the hot test the main transformer safe, controlled operation, to avoid the occurrence of vicious insulation breakdown emergencies for the main transformer blackout troubleshooting troubleshooting provide positioning.