A Permanent Magnet DC motor (PMDC motor) uses a permanent magnet to create the magnetic field & move the mechanical shaft for operating a direct current (DC) powered motor. It is generally used as a starter motor in washers, blowers, automobiles & powered windshields.
Working Mechanism:
- After the DC permanent magnet motors are mounted at the desired location, they are fitted to the equipment that needs to be powered.
- The motors are further attached to the controlling accessories like DC speed controls for monitoring motor outputs.
- Then, the units are connected to a DC power source for supplying power to the equipment.
Features:
- DC permanent magnet motor is designed for powering HVACs, automobiles, conveyor belts, hoists & pumps by converting electrical energy to mechanical power.
- This BALDOR CDP3445-V24 DC motor uses permanent magnets that do not require any field excitation arrangement & coil windings.
- The permanent magnet is connected with the armature for generating a continuous duty magnetic field and moving the motor shaft.
- It is equipped with a ball bearing for reducing frictional losses & eliminating heat generation inside the unit.
Standards and Approvals:
Frequently Asked Questions:
Q. What is the difference between a permanent magnet DC motor and a general-purpose DC motor?
A. The main difference between a general-purpose DC motor and a permanent magnet DC (PMDC) motor is the stator construction. A PMDC motor stator is made of permanent magnets, whereas a DC motor stator is made of an electromagnet. PMDC motor stators do not need separate field excitation, whereas an ordinary DC motor stator comes with field windings to provide excitation to the electromagnet. A PMDC motor is also more efficient when compared to a DC motor due to the absence of field windings and the resulting copper loss.