Reciprocating internal combustion engine driven alternating current generating sets - Part 11: Rotary uninterruptible power systems - Performance requirements and test methods
往复式内燃机驱动的交流发电机组 - 第11部分:旋转不间断电力系统 - 性能要求和试验方法
Specifies criteria, including performance and test methods, for rotary uninterruptible power systems arising out of a combination of mechanical and electrical rotating machines. Applies to power supplies primarily designed for supplying uninterrupted a.c. power to the consumer.