This standard specifies the performance indicators of micro-hydropower equipment, the classification of quality indicators related to use, as well as test methods and judgment methods, etc. This standard applies to various types of micro hydropower of 10 kW and below. Off-grid independent operation of hydroelectric power generation equipment above 10 kW can be implemented as a reference.
NY 663-2003 history
2003NY 663-2003 Quality classification for micro hydraulic generator equipment