Classification of Electric Drives
Group Drives Photo Credit - http://mechaholic.in It consists of single machine which actuates several machines or mechanism by means of one ...Read More
Passive Method of Space Heating
A schematic diagram of passive space heating designed by Professor Trombe is shown in figure. The south face of the house to be heated is p...Read More
Solar Water Heater Working (Thermosymphonic Mode)
Solar Water Heater A Solar Water Heater(SWH) is a device which provides hot water for bathing, washing, cleaning etc. using solar energy. It...Read More
Wireless Power Transfer
First demonstrated by Nicholas Tesla in the 1890s, wireless power transfer is an innovative technology that has permeated major areas in t...Read More
Skin Effect in Transmission Lines
The distribution of current throughout the cross section of conductor is uniform only when the steady current(D.C.) is passing through it. H...Read More
Corona phenomenon in Transmission Lines
When an alternating potential difference is applied across two conductors whose spacing is large as compared to their diameter, there is no ...Read More
Turn ON methods of SCR/Thyristor Triggering
A thyristor can be switched from a non conducting state to a conducting state in several ways- Forward Voltage Triggering (High Voltage) Whe...Read More
Silicon Controlled Rectifier (SCR)
Silicon Controlled Rectifier or SCR is one of the oldest type of solid state power device. It was invented in 1975 by the General Electric R...Read More
Principle of operation of SCR (Silicon Controlled Rectifier)
Silicon Controlled Rectifier When the anode voltage voltage is made positive with respect to the cathode, the junctions J1 and J3 are forw...Read More
Classification of Overhead Transmission Line
A transmission line has four constants R, L, C and shunt conductance. But generally, three constants R, L and C are considered and they ar...Read More
What is meant by excitation?
"Self Excited vs Magneto". Licensed under PD-US via Wikipedia Electric generators work on the principle of electromagnetic inducti...Read More
What is hunting in synchronous machine?/Phase Swinging/Surging
With the extensive use of synchronous machines, the importance of thoroughly investigating the influence of electrical constants such as res...Read More
Torque Equation of D.C. Motor
In D.C. machine it is seen that the machine torque is uniform for given flux per pole and armature current. Torque is defined as the produc...Read More
Back E.M.F.
What is Back e.m.f. ? When the armature of a dc motor rotates under the influence of the driving torque, the armature conductor move through...Read More
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