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Generator Upgrades, the Rest of the Story

机译:发电机升级,故事的其余部分

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摘要

It is not unusual for well maintained and operated generators to be in use long after the OEM's designed life expectancy. In fact, most large utilities in the United States have generators in their fleets that have been in operation for well over 30 years. With a growing dependence on electric power and the prohibitive cost of outage extensions, there have been increased efforts to obtain higher operating voltages while increasing reliability. To accomplish this, it may require the replacement of major components such as armature windings, field windings or a complete rotor. Upgrading generator components can be a complicated process that requires a considerable amount of preplanning, extended outage time and a significant financial investment. Not all generator service issues are solved with a rewind. Often ignored during generator upgrades are the auxiliary systems; seal & lube oil, hydrogen cooling, gas supply & controls, stator cooling water and monitoring systems. The auxiliary system equipment is critical to ensure efficient, reliable and safe operation of the generator. Time and wear of auxiliary system components have a direct impact on the generator availability and could potentially lead to a generator problem that could lead to a catastrophic failure. A proactive approach to upgrading these critical auxiliary systems will help secure your return on investment involved in rewinding a generator. This paper identifies the benefits for evaluating and upgrading generator auxiliary systems.
机译:在OEM的设计寿命之后很长的时间内,维护良好并运行良好的发电机就很常见。实际上,美国大多数大型公用事业公司的船队中已有发电机运行了30多年。随着对电力的日益增长的需求以及停电延长的高昂代价,人们在增加可靠性的同时,也加大了获得更高工作电压的努力。为此,可能需要更换主要部件,例如电枢绕组,励磁绕组或完整的转子。升级发电机组件可能是一个复杂的过程,需要大量的预先计划,延长的停机时间以及大量的财务投资。并非所有的发电机服务问题都可以通过倒带解决。发电机升级期间经常忽略的是辅助系统。密封和润滑油,氢气冷却,气体供应和控制,定子冷却水和监控系统。辅助系统设备对于确保发电机高效,可靠和安全运行至关重要。辅助系统组件的时间和磨损会直接影响发电机的可用性,并有可能导致发电机问题,从而导致灾难性故障。主动升级这些关键辅助系统的方法将有助于确保您在重绕发电机时的投资回报。本文确定了评估和升级发电机辅助系统的好处。

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