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
Electrical
Kirchhoff’s Current Law, KCL and Junction Rule, Solved Problems
Kirchhoff’s laws are very helpful tool for circuit analysis. It is easy to find current and voltage in a complex electrical circuit. The electrical circuit … Read more
What is Smart or Intelligent MCC? Its Advantages
What is MCC? MCC – Motor Control Center– has all the operational and protective switch gears. The Motor Control center basically controls the motor operation. … 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
What is Electric Power? Definition, Unit, Types, Formula, Solved Problems
Electric Power Definition The rate at which work is done is called an electric power. An electrical source has electrical charges stored in it. Therefore, … Read more
What is Power? Definition, Unit, Formula, Solved Examples
A person “A” can dig 2 feet of soil in one hour. Another person “B” can dig 2 feet of soil in two hours. Who … Read more
What is a Phase Sequence & Its Significance
In a three-phase power system, the order in which each phase voltages attain a positive peak value is called phase sequence. The phase sequence is … Read more
Why do 3 phase induction motors not need a neutral?
3 Phase induction motor is a balanced three-phase load. Therefore, the induction motor draws a balanced current if the supply voltage and the impedance of … Read more
Shaft Grounding Devices | Shaft Earthing Devices
Shaft grounding devices minimize the shaft voltage and prevent bearings damage caused by the circulating current. There are numerous reasons for developing shaft voltage in … Read more