High voltage motor,like YLKK series square cage motor,refers to an electric motor with a rated voltage above 1000V. The commonly used voltages are 6000V and 10000V, and due to differences in foreign power grids, there are also voltage levels of 3300V and 6600V.YLKK series square cage motor, its unique feature is vertical mounting method. If motor will be used outdoor, one rainproof cover is needed at the top of NDE side.If there is canopy above the motor, usually, there is no need to assemble the rainproof cover, which will be not useful for heat dissipation for the long run.