Electrical Articles Archive
Voltage rise and voltage drop
Inside the battery, from the negative terminal to the positive terminal of the battery, then, the battery, the energy is supplied to the charges the work is done on the charges. Hence there is again in the
Analog between hydraulic and electric circuits
Hydraulic circuit A hydraulic circuit consists of a water through the pipe. The flow is created and maintained by supplying mechanical energy with the pump. The water particles at the highest potential ‘A’ flow through the pipe
Capacitance
A capacitance is the circuit element in which the energy is stored in the electrostatic field. The physical device producing capacitance known as a capacitor. The capacitor is formed by inserting a dielectric (insulating) material between the
Atomic structure
Acceding to the modern electron theory, every matter in the universe is made up of very small divisible particles known as molecules. Every molecule is further composed of very minute particles called atoms. Every matter differs from
Functions of automatic star delta converter
All motors of higher capacity are provided with star/delta windings. During the initial startup, the motor is connected in star mode to reduce the initial inrush of current. Once the motor achieves the required speed, it switches
What is a variable frequency drive?
In some motor driven systems, the load varies with time. A Large amount of energy can be saved using a variable frequency drive(VFD). VFDs belongs to a group of equipment called adjustable speed drives or variable speed drives.
What is smooth starter ?
Smooth stating by torque control for a gradual acceleration of the drive system thus preventing jerks and extending the life of mechanical components. Reductions in staring current to achieve break-away, and to hold back the current during
Gas turbine cogeneration system
Works on the principal of bray ton cycle of thermodynamics. Capacity ranges between 500KW to 25MW. In bray ton cycle, atmospheric air is compressed and mixed with fuel in a combustion chamber where the combustion occurs. Expansion
Bottoming cycle type of cogeneration
In the bottoming cycle, cogeneration system fuel is burnt mainly to produce useful heat, unlike the previous system. Then rejected heat in this process is recovered by heat recovery boiler and associated turbine generator to generate electrical
Topping cycle
In a topping cycle, utilization of fuel burnt is mainly for the productions of electricity and excess thermal energy is recovered. Heat energy is generated as a byproduct of the cycle, which is used to attain the