What is Electrical Energy?

Let’s try to review the potential difference between two points in an electrical field before explaining what is electrical energy. Suppose the potential difference between point A and point B is V volt. Based on the definition of potential difference, we can say that if one positive electrical load unit that is a body that contains one – coulomb positive load travels from point A to point B, it will… Read More »

Ionization Energy

An element’s ability to deliver its outermost electrons to form positive ions is manifested in the amount of energy supplied to its atoms sufficiently to remove the electrons from it. This energy is known as the ionization energy. Simply, the Ionisation Energy is the energy supplied to an atom or molecule to knock out its most loosely bound… Read More »

Types of Cables

Cables are classified depending upon the material used for insulation such as paper, rubber or asbestos. Paper tapes of about 10 cms to 15 cms thickness can be wound on to a conductor in successive layers to achieve a required operating voltage and is used for voltages of 10 kV and above. In the mass-impregnation construction the paper… Read More »

Types of buses

In a power system various component are meet at buses. The generators feed energy to buses and loads draw energy from buses. In the network of a power system the buses become nodes and so a voltage can specified for each bus. So, each bus in a power system is associated with four quantities and they are real… Read More »

A.C. Potentiometers

Introduction: The most important difference between a de. And a.c. potentiometer is that, in a d.c, potentiometer, only the magnitude of the unknown emf and potentiometer voltage drop have to be made equal to obtain balance. But in a.c. potentiometer, both magnitude and phases of unknown emf and potentiometer voltage drop have to be same to balance. The… Read More »

Dynamometer type single-phase power factor meter

Construction: It consists of a fixed coil FF (split into two parts) which carries the current of the circuit under test. So, the magnetic field produced by this coil is proportional to the main current. The identical pressure coils A and B pivoted on a spindle constitutes the moving system. Pressure coil A has a non-inductive resistance R… Read More »