221. What is the formula for the height of pole shoe sufficient to accommodate the damper windings? a) height of pole shoe = diameter of damper bars b) height of pole shoe = 2 * diameter of damper bars c) height of pole shoe = diameter of damper bars/2 d) height of pole shoe = 3 * diameter of damper bars/2
221. What is the formula for the height of pole shoe sufficient to accommodate the damper windings? a) height of pole shoe = diameter of damper bars b) height of pole shoe = 2 * diameter of damper bars c) height of pole shoe = diameter of damper bars/2 d) height of pole shoe = 3 * diameter of damper bars/2
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