Deepakkumar Yadav
Advantages, Disadvantages and Applications of Solid State Regulator Advantages of Solid State Regulator : Due to the incorporation of firing angle control, the output voltage regulation is better than that of the tap changing regulator. Its dynamic response is faster than that of the tap changing regulator. Disadvantages of Solid State Regulator : Poor input power factor due to … Read more
Relay Type or Tap Changing AC Voltage Stabilizer Block Diagram of Tap Changing AC Voltage Stabilizer : The block diagram of the tap changing regulator is as shown in figure. Operation of Tap Changing AC Voltage Stabilizer : As shown in Fig . 5.161, the primary winding of the transformer is divided into several taps. One end (A) of … Read more
AC Voltage Regulator (Stabilizer) Definition of AC Voltage Regulator (Stabilizer) : Stabilizer is a device that stabilizes or regulates the single phase or three phase ac supply, in a predecided voltage range. The voltage range is dependent on the application. AC supply is being used by almost all the industrial, control, biomedical applications. For their … Read more
Electronic Circuits used in Resistance Welding System There are many electronic control circuits used in the resistance welding process, they are as follows : The line contactor : The line contactor is basically an electronic switch. The line contactor connects and disconnects the primary winding of the welding transformer across the ac mains supply. The … Read more
Simple Battery Charger How can I make a 12 volt battery charger at home? What is battery charger circuit diagram? How does a battery charger circuit work? What is battery charging circuit? Circuit Diagram of Battery Charger : Figure A shows the circuit diagram for a simple battery charger using an SCR. The input transformer … Read more
Basic AC Resistance Welding System Description : The “line contactor” is basically a controlled switch which connects the ac mains voltage across the primary winding of the “welding transformer” only during the welding interval. It otherwise disconnects the mains from the primary. The “welding transformer” is a step down transformer which supplies a reduced (steps … Read more
Advantages and Disadvantages of Resistance Welding Advantages of Resistance Welding : The resistance welding has following advantages over the conventional welding : The welding time is extremely short, a few millisecond to a few seconds. Due to the use of controlled devices like thyristors precise heat control is possible to achieve. Quality of welding is improved to … Read more
Static or Solid State AC Voltage Stabilizer Block Diagram of Solid State AC Voltage Stabilizer : Solid state regulator can be of two types : Tap changing type Phase control type The block diagram is as shown in Figure A. The input output voltage waveforms are as shown in Figure B. Figure A Figure B Operation of Solid … Read more
Advantages and Disadvantages of Dielectric Heating Advantages of Dielectric Heating : The heating is uniform. It is possible to control the heat automatically. There are no-products of the heating process. heating process is neat and clean. The process of heating is free from gases and ash. It is possible to achieve high rate of heating. … Read more
Line Contactor in Welding Transformer Line contactor is an electronic switch , which can connect or disconnect ac supply to the welding transformer primary at the time of welding . It is controlled by the control signals from the control circuits. Types of line contactors : Here we have to study two types of line contactors, … Read more