Engine 2014: Electricity

1. A The rotor follows the frequency and phase sequence rotation of voltage applied to the motor until it reaches the desired speed.
2. B The silicon-controlled rectifiers in the power converter are used to control the voltage and current applied to the motor armature.
3. C The source and load converters respond to a small reference voltage increasing the frequency applied to the motor until it reaches the desired speed.
4. D The cycloconverter is used to increase the voltage applied to the motor until it reaches the desired speed.

Tip: press A-D to answer