Generation of High Voltage and Currents

Generation of High Voltage and Currents:

Cascade Transformer Connection : Figure 6.10 shows the Cascade Transformer Connection units in which the first transformer is at the ground potential along with its tank. The …


Circuits for Producing Impulse Waves : A double exponential waveform of the type mentioned in Eq. (6.15) may be produced in the laboratory with a combination of …


Deltatron Circuit : Deltatron Circuit or Cascaded Modular Voltage Multipliers: A combination of Cockcroft-Walton type voltage multiplier with cascaded transformer d.c. rectifier is developed recently for very high voltages but …


Different Types of High Voltages : In the fields of electrical engineering and applied physics, Different Types of High Voltages (d.c., a.c,, and impulse) are required for …


Electrostatic Generators : Van de Graaff generators are essentially high voltage but low power devices, and their power rating seldom exceeds few tens of kilowatts. As such …


Generation of High Frequency AC High Voltage : High Frequency AC High Voltage are required for rectifier d.c power supplies. Also, for testing electrical apparatus for switching …


Generation of Impulse Currents Waves : Lightning discharges involve both high voltage impulses and high current impulses on transmission lines. Protective gear like surge diverters have to …


Generation of Switching Surges : Nowadays in extra high voltage transmission lines and power systems, switching surges is an important factor that affects the design of insulation. …


Half and Full Wave Rectifier Circuits : Half and Full Wave Rectifier CircuitsĀ for producing high d.c. voltages from a.c. sources may be (a) Half wave, (b) Full wave, …


Multistage Impulse Generator Circuit : In the early discussion, the generator capacitance C1 is to be first charged and then discharged into the wave shaping circuits. A …


Resonant Transformers : The equivalent circuit of a high voltage testing Resonant Transformers consists of the leakage reactance of the windings, the winding resistances, the magnetizing reactance, …


Series DC Voltage Regulator : The output voltage of a d.c. source, whether it is a rectifier or any other machine, changes with the load current as …


Series Inductance in Impulse Generator Circuit : Often Series Inductance in Impulse Generator Circuit are required to test equipment with large inductance, such as power transformers and …


Standard Impulse Wave Shapes : Transient overvoltages due to lighting and switching surges cause steep build-up of voltage on transmission lines and other electrical apparatus. Experimental investigations …


Tripping of Impulse Generators : In large impulse generator, the spark gaps are generally sphere gaps or gaps formed by hemispherical electrodes. The gaps are arranged such …


Van De Graaff Generator Working Principle : The schematic diagram of a Van De Graaff Generator Working Principle is shown in Fig. 6.6. The generator is usually …


Voltage Doubler Circuits : Both full wave and half wave rectifier circuits produce a d.c. voltage less than the a.c. maximum voltage. When higher d.c voltages are …


Voltage Drop on Load and Regulation : The change of average Voltage Drop on Load from the no load theoretical value expressed as a percentage of no …


Voltage Multiplier Circuits : Cascaded Voltage Multiplier Circuits for higher voltages are cumbersome and require too many supply and isolating transformers. It is possible to generate very …