AdityaMar 15, 20212 minWhy does Megger have DC Geneartor?Megger brand is the model of insulation tester and it became so popular that insulation measurement is termed as insulation resistance...
AdityaMar 6, 20211 minCurrent Divider Rule: What is it? Formula, Derivation & ExamplesWhen current source is connected to the circuit elements which are in parallel, the total current flowing in the circuit gets divided in eac
AdityaFeb 18, 20213 minSolid GroundingWhen the neutral point of the three phase system is connected to earth through a negligible resistance is called solid grounding or effectiv
AdityaFeb 15, 20212 minFrequencyThe number of repeating events in a definite time period is called frequency, The SI unit of frequency is Hz. The frequency is also denoted
AdityaFeb 15, 20212 minTotal Harmonic Distortion & Its MeasurementThe 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
AdityaFeb 3, 20212 minWhy Neutral Grounding Resistor (NGR) is used in Neutral Earthing?When solid grounding is used the the enormous fault current flows through the equipment. But the current transformer senses the current quic
AdityaFeb 1, 20213 minWhy Charcoal and Salt are added in Earthing Pit?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
AdityaJan 28, 20212 minDifference Between Valence Band and Conduction BandThe atom of any material has two energy levels. The conductivity of the material depends on the difference between two energy levels. The...
RajJan 18, 20212 minWhy double earthing for 3-phase electrical machines and equipment?There are two types of earthing used in electrical system. The equipment frame earthing and system earthing. In equipment earthing the...
RajJan 14, 20213 minDisplacement Power Factor, Distortion Power Factor & True Power FactorWhat is Displacement Power Factor? There are three power factor terms widely used for electrical network. The terms are rather confusing...
RajJan 14, 20212 minDifference between Active and Passive ComponentsThe main difference between active and passive component. The components which require additional power supply for biasing the component...
RajJan 11, 20213 minWhat is Voltmeter?Definition:The instrument which measures the voltage or potential difference in volts is known as the voltmeter. It works on the...
RajJan 11, 20213 minLow Voltage FusesFuse is a current interrupting device which breaks or opens the circuit by fusing the element when the current in the circuit exceeds a...
RajJan 4, 20214 minPhase Sequence Indicator – Working and ImportancePhase Sequence Indicator is an instrument which identifies the phase sequence of three phase supply system. Phase sequence or often...
RajDec 30, 20202 minWhat is Earthing Transformer or Grounding Transformer? Why Grounding/ Earthing transformer required? In a delta connected alternator and transformer neutral point is not available. To create...
RajDec 30, 20202 minDifference between Earthing, Grounding and NeutralThe metallic enclosure,frame of an electrical equipment is connected to earth. The earth has zero potential. In normal condition the metalli