Question
Download Solution PDFWhich of the following motors are commonly used in power electronic systems?
1. Synchronous motors
2. DC motors
3. DC motors with brushes
Select the correct answer using the code given below.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- Power electronics drive is used to control the speed of both DC and AC motors.
- With the help of power electronics converter output voltage magnitude and output frequency can be controlled as per desired condition.
- With the help of rectifiers and choppers speed of DC motors with and without brushes can be controlled.
- With the help of inverters speed of AC motors can be controlled.
- Synchronous motor is constant speed motor ,hence its speed cannot be changed by power electronics drive.
- Therefore, synchronous motors are not used in power electronics system.
Last updated on Jul 2, 2025
-> ESE Mains 2025 exam date has been released. As per the schedule, UPSC IES Mains exam 2025 will be conducted on August 10.
-> UPSC ESE result 2025 has been released. Candidates can download the ESE prelims result PDF from here.
-> UPSC ESE admit card 2025 for the prelims exam has been released.
-> The UPSC IES Prelims 2025 will be held on 8th June 2025.
-> The selection process includes a Prelims and a Mains Examination, followed by a Personality Test/Interview.
-> Candidates should attempt the UPSC IES mock tests to increase their efficiency. The UPSC IES previous year papers can be downloaded here.