Megger brand is the model of insulation tester and it became so popular that insulation measurement is termed as insulation resistance...

When current source is connected to the circuit elements which are in parallel, the total current flowing in the circuit gets divided in eac

When the neutral point of the three phase system is connected to earth through a negligible resistance is called solid grounding or effectiv

The number of repeating events in a definite time period is called frequency, The SI unit of frequency is Hz. The frequency is also denoted

The total harmonic distortion of voltage (THDv) is defined as the ratio of sum of root means squares of all the harmonic voltages to the RMS

When solid grounding is used the the enormous fault current flows through the equipment. But the current transformer senses the current quic

Conventional pipe and plate earthing is used for earthing purpose. The alternate layers of salt and charcoal is made when the earth pit is f

The atom of any material has two energy levels. The conductivity of the material depends on the difference between two energy levels. The...

There are two types of earthing used in electrical system. The equipment frame earthing and system earthing. In equipment earthing the...

What is Displacement Power Factor? There are three power factor terms widely used for electrical network. The terms are rather confusing...

The main difference between active and passive component. The components which require additional power supply for biasing the component...

Definition:The instrument which measures the voltage or potential difference in volts is known as the voltmeter. It works on the...

Fuse is a current interrupting device which breaks or opens the circuit by fusing the element when the current in the circuit exceeds a...

Phase Sequence Indicator is an instrument which identifies the phase sequence of three phase supply system. Phase sequence or often...

Why Grounding/ Earthing transformer required? In a delta connected alternator and transformer neutral point is not available. To create...

The metallic enclosure,frame of an electrical equipment is connected to earth. The earth has zero potential. In normal condition the metalli