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装置第11部分:旋转不间断电源系统;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.