In this topic, you study the difference between synchronous motor and induction motor.
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Category: Electrical Machines
Hunting in Synchronous Motor – Meaning & Prevention
When the synchronous motor is loaded, the rotor poles fall back by a certain angle behind the rotating stator poles. This enables the motor to produce the necessary torque to cope up with the load. For synchronous motor operating with fixed excitation, the value of this torque angle is solely decided by the load on the motor. Continue reading Hunting in Synchronous Motor – Meaning & Prevention
What is Submersible Motor? Salient Features, Advantages & Application
The submersible electric motors are the prime moves of an electric submersible pumping system. It is supplied with electrical power from surface via the cable and converts this into meaningful mechanical work. Submersible motors are generally squirrel cage type totally enclosed, wet type induction motor suitable for single phase, 230 V/3 phase, 415 volts, 50Hz supply, 2 pole 3000 RPM (Syn. speed) filled with pure drinking water. Dual seals and sand gaurds are provided for protection and to avoid contamination of outside bore well water.
There are different types of electric pumps submersible motor of 4”, 10” and 12”. Submersible motors are suitable to be immersed in well having diameter 4” and coupled to hydraulic submersible centrifugal pump with 4” coupling. The motors are designed to start at low voltage and worked in wide voltage fluctuation. It is available in rating of 0.37 kW to 2.2 kW.
Fig. 1: The submersible pump with motor assembly
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Difference Between Brushed and Brushless DC Motor
In this topic, you study the difference and similarities between brushed and brushless dc motors.
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What is Motor Enclosure? Types of Motor Enclosures
The enclosure of the motor serves two purposes :
- It provides the protection to the persons against the undesirable contacts
- To protect the parts and windings of the motor from the dangerous atmospheric factors such as fumes, dirt, dust, chemical gases, rats, cockroaches and other insects.
Continue reading What is Motor Enclosure? Types of Motor Enclosures