Difference Between High, Medium and Low Voltage Transformers
Difference Between High, Medium, and Low Voltage Transformers – A step-down voltage transformer reduces a higher level voltage to a lower level. A step-up voltage … Read more
Machines
An electrical machine converts mechanical energy into electrical energy or vice versa. The transformer is also an electrical machine which transform the voltage without changing the frequency. We will discuss about the;
- DC Motor
- DC generator
- Induction Motor
- Transformer
- Electrical drives
- Alternator or synchronous generator
What is Eddy Current Loss?-Definition and Expression
Eddy Current Loss When magnetic material comes under a magnetic field generated by alternating current, an emf induce in the core material according to Faraday’s … Read more
Advantages and Disadvantages of Electric Braking
In this article, we shall study the advantages and disadvantages of Electric Braking. The electric brake is better than a mechanical friction brake in many … Read more
Types of Braking in a DC Motor
In this article, we shall discuss the types of electrical braking in a DC motor. There are various types of electrical braking used for DC … Read more
What is Plugging or Reverse Current Braking of DC Motor?
In Plugging or Reverse Current Braking, supply polarity of armature voltage of DC motor is reversed to rapid stop the motor. The armature voltage(V) and back EMF (Eb) … Read more
Difference between Copper Loss and Iron Loss
In this article, we will discuss the difference between copper loss and iron loss of the transformer. what are copper loss and iron loss and … Read more
Derivation of EMF Equation of a DC Generator
EMF Equation of DC Generator and DC Motor When we apply DC voltage to an armature of a DC motor, a back emf or counter … Read more
Speed Regulation of DC Motor | Definition and Formula
The speed of the DC motor decrease with an increase of load on the motor. This is not desirable. Therefore, there must be a lesser … Read more
What is Shaft Torque of DC Motor?- Definition, Formula and Solved Problem
The actual torque available at the motor shaft for driving the mechanical equipment is known as shaft torque(Tsh). In fact, the same electromagnetic or gross … Read more
Different Ways to Improve Starting Torque of A.C. Induction Motors
A.C. induction motor starting torque is very low as compared to DC motor starting torque. Also, during acceleration, the induction motor produces torque pulsation. As … Read more