IEC 88528-11:2004 Preview
Reciprocating internal combustion engine driven alternating current generating sets -- Part 11: Rotary uninterruptible power systems -- Performance requirements and test methods
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.
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