2019年10月31日10时33分，阳城国际发电有限责任公司维护二部4

At 10:33 on October 31, 2019, Yangcheng International Power Generation Co. No. maintain two main transformer 4 due to the A-phase high-pressure side sleeve insulation breakdown in the long-period operation fails, Unit 4 outage. After the failure, O & O after-sales manager Liu Shiqiang rushed to the site, and customers to analyze the cause, the development plan repair, spare parts material arrangements, active in consecutive days of high-intensity maintenance work, hard working, hands-on, with customers the successful completion of repair work No. 4 main transformer. In this regard, customers are very grateful to the dedication Liu workers, issued a document thanks!

On October 31, 2019, at 10:33, Yangcheng International Power Generation Co., Ltd. maintained the second part of the 4mains due to the high-voltage side A-phase casing long cycle operation insulation breakdown failure, Unit 4 discontinued. After the failure occurred, O-O after-sales manager Liu Shiqiang rushed to the scene at the first time, and customers to analyze the cause of the failure, the development of repair plan, arrange spare parts materials, in more than ten consecutive days of high-intensity maintenance work proactive, to work hard, hands-on, with the customer successfully completed the repair work of the 4th main change. In this regard, the customer is very grateful to Liugong's professionalism, sent a message of thanks!

At 10:33 on October 31, 2019, Yangcheng International Power Generation Co., Ltd. failed to maintain No. 4 main transformer of No. 2 unit due to insulation breakdown during long-term operation of A-phase bushing at high voltage side, and No. 4 unit was shut down. After the failure, Liu Shiqiang, the after-sales manager of O & O, rushed to the site as soon as possible, analyzed the cause of the failure together with the customer, formulated the emergency repair plan, arranged the spare parts and materials, took the initiative in the high-intensity maintenance work for more than ten consecutive days, and cooperated with the customer to successfully complete the emergency repair work of No.4 main transformer. To this end, the customer is very grateful for Liu Gong's professionalism and sent a message to express his thanks!<br>