| In the illustrated solid-state "soft" starter for a three phase induction motor as shown in figure "A", what is the characteristic of the voltage applied to the motor during the acceleration period? |
| A) voltage is applied only during positive half- cycles during the acceleration period |
| B) voltage is applied only during negative half- cycles during the acceleration period |
| C) voltage is increased in incremental steps during the acceleration period |
| D) voltage is gradually and continually ramped up during the acceleration period |