Turnarounds have proven hard and costly to execute. Efforts made to decouple production units have led to smaller and shorter shutdowns, resulting in a longer time between power system outages. This has limited the ability to maintain and upgrade electrical infrastructure and forced some of the work to be completed on the run.

中文翻译：

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利用实时模拟器技术升级保护继电器：在工业设施中的应用

事实证明，转型实施起来既困难又昂贵。为使生产单元解耦所做的努力导致停机时间更短、更短，从而导致电力系统停电间隔时间更长。这限制了维护和升级电气基础设施的能力，并迫使一些工作在运行中完成。