Deepakkumar Yadav
Static Electrification in Power Transformer Transformer represent a significant asset in any power system network. The power transformer are crucial elements of the network. There are two critical phenomenon which affect reliability of power transformers -Static electrification and geometrically induced currents. There are number of transformer failures associated with these phenomenon. The force cooled power … Read more
Dual Converters Q. What is a dual converter? Q. Why a dual converter is called so? Q. Introduction of Single Phase Dual Converter Q. Block Diagram of Dual Converters Definition of Dual Converters : When two full converters (single phase or three phase) are connected back to back the configuration is known as dual converter configuration. Block Diagram of Dual … Read more
Three Phase Series Inverter Circuit Diagram of Three Phase Series Inverter : A three phase series inverter can be obtained by connecting three separate single phase inverters together as shown in Figure A. If capacitors C1 and C2are large enough then each phase will function as an independent series inverter. The values of the L, C and R … Read more
Single Phase Full Bridge Inverter (Square Wave Output) Circuit Diagram of Single Phase Full Bridge Inverter (Square Wave Output) : A single phase bridge inverter is shown in Figure A. It consists of four transistors. These transistors are turned on and off in pairs of Q1 Q2 and Q3 Q4. In order to develop a positive voltage + … Read more
Half Bridge Inverter with Inductive Load Operation of Half Bridge Inverter with Inductive Load : Let us divide the operation into four intervals. We start will explanation from the second time interval t1 to t2, because at negative the beginning of this interval transistor S1 will start at conducting. Refer Figure E for better understanding. Interval II … Read more
Solar Energy Solar energy has the greatest potential of all the sources of renewable energy and if only a small amount of this form of energy could be used, it will be one of the most important supplies of energy. Solar energy comes to the earth from the sun. Due to this energy temperature of … Read more
McMurray Commutation Q. Sketch circuit diagram of McMurry Bedford Inverter. How commutation of SCR is done ? Q. Which type of commutation is used in the Mcmurray Bedford inverter? Q. What is Mcmurray inverter? Q. McMurray commutation circuit Q. MC Murray Inverter Q. Mcmurray bedford inverter Q. McMurray full-bridge inverter Circuit Diagram of McMurray Commutation The circuit configuration for the McMurry … Read more
Half Bridge Voltage Source Inverter (Resistive Load) Circuit Diagram of Half Bridge Voltage Source Inverter : The principle of single phase transistorised inverters com be explained with the help of Figure A. The configuration is known as the half bridge configuration. The transistor Q1 is turned on for a time T0 / 2, which makes the instantaneous … Read more
Push Pull Inverter (With RL Load) Circuit Diagram of Push Pull Inverter (With RL Load) : For the operation of push pull transformer the output transformer is a must. The circuit diagram for the push pull inverter is as shown in figure A. Note that this circuit is same as that of the parallel inverter. The … Read more
Transistorised Inverters Q. What is transistor inverter? Q. Why are transistors used in inverters? Q. How to Build an Inverter with a Transistor The transistorised inverters use power transistors as power switches. The configurations which will be discussed in this section by by replacing the power by transistors power MOSFETS or IGBTS. For all these devices, the commutation circuits are … Read more