Question
Download Solution PDFThe rotor of a hysteresis motor is made of ceramic permanent magnet material, which causes:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFTypes of losses in Hysteresis motor:
- A hysteresis motor is a synchronous motor with a uniform air gap and without DC excitation
- The torque in a hysteresis motor is produced due to the hysteresis current induced in the rotor by the action of the rotating flux of the stator windings. It has high starting torque as it has high rotor hysteresis loss.
- The rotor of the hysteresis motor is made up of ceramic permanent magnetic material, therefore, it is difficult to set up an eddy current in such a rotor due to the high resistivity of magnetic materials like ceramic. Hence there is no eddy current loss but only hysteresis loss
Last updated on Jul 1, 2025
-> SSC JE Electrical 2025 Notification is released on June 30 for the post of Junior Engineer Electrical, Civil & Mechanical.
-> There are a total 1340 No of vacancies have been announced. Categtory wise vacancy distribution will be announced later.
-> Applicants can fill out the SSC JE application form 2025 for Electrical Engineering from June 30 to July 21.
-> SSC JE EE 2025 paper 1 exam will be conducted from October 27 to 31.
-> Candidates with a degree/diploma in engineering are eligible for this post.
-> The selection process includes Paper I and Paper II online exams, followed by document verification.
-> Prepare for the exam using SSC JE EE Previous Year Papers.