... , energy-saving, low noise, small vibration, reliable, long service life Y, YKS, and YKK ranges of high-voltage three-phase induction ... this range is of the horizontally foot-mounted construction (IMB3). Y is a basic range of motors, YKS and YKK ranges ... IEC standards and GB755 Rotating Electrical Machines-Ratings and Performances. Y, YKK, YKS High-Voltage Three-Phase Induction Motors