As shown in figure "A" of the illustrated propulsion motor variable speed drive, what statement is true? Illustration EL-0140

Question

Accepted Answer

the bridge rectifier is uncontrolled and the controller inverter bridge is transistor controlled in terms of switching

Answer

both the bridge rectifier and the controller inverter bridge are transistor controlled in terms of switching

Answer

the bridge rectifier is uncontrolled and the controller inverter bridge is thyristor controlled in terms of switching

Answer

both the bridge rectifier and the controller inverter bridge are thyristor controlled in terms of switching

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