Does induction motor require a permanent magnet?
No.
举一反三
- The ( ) stepping motor is used widely in the industry. A: variable reluctance stepping motor B: hybird stepping motor C: permanent magnet stepping motor D: reluctance stepping motor
- Permanent magnet (PM) synchronous motor A: 异步电机 B: 干扰 C: 同步电机 D: 永磁同步电机
- permanent magnet electric motor A: 异步电机 B: 永磁电机 C: 同步电机 D: 交流电机
- 【单选题】What is a key characteristic of a permanent magnet alternator? A. Permanent magnet stator B. Permanent magnet rotor C. Permanent magnet rotor and stator D. The use of a strong NIB magnet
- An induction motor's rotor can be either wound type or ????????-???? type.
内容
- 0
The type of stepping motor widely used in industry is A: reactive B: permanent manget motor C: hybird motor D: variable reluctance motor
- 1
The magnentic field is generated by A: voltage applied to the conductor B: current through the conductor C: charge shifts D: permanent magnet
- 2
A single phase ac induction motor has two windings, one is a run winding and the other is called a start winding. Strat winding can only work for a very short time to avoid overheated. A _____________ switch is installed inside motor to disconnect the strat winding when the motor speed reached 75% RPM.
- 3
What does a successful speaker require?
- 4
What does a successful speech require?