V-Curves and Inverted V-Curves
V-Curves and Inverted V-Curves of Synchronous MotorA synchronous motor is a double-excited machine, its armature winding is energized from an a.c source and its field winding from d.c...
View ArticleDifferences Between Synchronous and Induction Motor
Differences Between Synchronous and Induction MotorWe have two major types of AC motors.They are synchronous and induction motor,synchronous motor runs at synchronous speed where induction motor runs...
View ArticleBlocked Rotor Test On Induction Motor
Blocked Rotor Test On Induction MotorThis test is also called as Locked Rotor test or short circuit test.In the previous articles we had discussions on construction of induction motor,working of...
View ArticleEMF Equation Of Alternator / 3 Phase AC Generator EMF Equation
EMF Equation of an AlternatorWe know Synchronous Machines generates E.M.F.the amount of EMF generated can be calculated using below simple derivation.Consider followingΦ= flux per pole in wbP = Number...
View ArticleWhat Are The Harmonics In Synchronous Machines
Harmonics Harmonics In Synchronous MachinesHarmonics: When the uniformly sinusoidally distributed air gap flux is cut by either the stationary or rotating armature sinusoidal emf is induced in the...
View ArticleDifference Between Shell And Core Type Transformers - Types of Transformers
In our previous articles we have discusses about differences between lap,wave winding.In this tutorial we are sharing major differences between core type transformer and shell type transformer. There...
View ArticleCondition for Maximum Efficiency of DC Machine
We have discussed about construction & working of DC machine. In this article condition for maximum efficiency in DC machine will be derived. Condition for Maximum Efficiency in DC MachineIn this...
View ArticleBarkhausen Criterion of Oscillators
Barkhausen Criterion of OscillatorsConsider a basic inverting amplifier with an Open loop gain A.The feedback network attenuation factor B is less than unity. As basic amplifier is inverting. it...
View Article[ PDF ] Analog Electronics Book Bakshi and Godse Free Download Pdf
Analog Electronics Book Bakshi and Godse Free Download PdfWe at ElectricalEdition.Com Always try to help electrical & electronics engineering students by providing articles,PDF books for free...
View ArticleLong transmission lines,Analysis With Rigorous Method
Long transmission lines,Analysis By Rigorous methodWhat are called as Long transmission lines?Answer: When the length of an overhead transmission line is more than 150 km and line voltage is very high...
View ArticleBack EMF | Back EMF Significance in DC Motor
Back EMF | Back EMF Significance in DC MotorWhat is Back EMF in DC Motor?We know whenever conductor cuts the magnetic field,e.m.f will induce in conductor.This also applies for conductors in armature...
View ArticleDifference Between Shell And Core Type Transformers - Types of Transformers
In our previous articles we have discusses about differences between lap,wave winding this tutorial we are sharing major differences between core type transformer and shell type transformer. In this...
View ArticleEMF Method or Synchronous Impedance Method | Voltage Regulation of...
Voltage Regulation of Synchronous Generator [Alternator] By EMF Method or Synchronous Impedance MethodEMF method: This method is also known as synchronous impedance method.Here the magnetic circuit is...
View ArticleHysteresis Motor Construction & Working
Hysteresis Motor Construction & Working Hysteresis Motor:Single-phase cylindrical (non-salient-pole) synchronous-induction or shaded.pole motors are classed as hysteresis motors. A hysteresis motor...
View ArticleInstantaneous Relay Operation
Instantaneous Relay Working Operation What Is Instantaneous Relay ?An instantaneous relay is one in which there is no time delay provided intentionally. More specifically ideally there is no time...
View ArticlePower Factor | It's Calculation, Power Factor Improvement Methods
Power Factor | Calculation and Power Factor Improvement MethodsWhat Is Electrical Power Factor ?The cosine of angle between voltage and current in an a.c. circuit is known as power factor. In an a.c....
View ArticlePrinciples of Power Systems By V.K Mehta PDF Free Download
Principles of Power Systems By V.K Mehta PDF Free DownloadNow you can read & learn electrical power systems in offline.You can download Principles of Power Systems By V.K Mehta. This is a very nice...
View ArticleMethods To Cool Down A Power Transformer | Cooling Methods Of Transformer
Cooling Methods Of Power Transformer The transformers get heated due to iron and copper looses occurring in them. It is necessary to dissipate this heat so that the temperature of the windings is kept...
View ArticleMoving Iron Instrument Working Operation
Moving Iron Instruments or MI InstrumentsIn our previous article we have discussed PMMC Instrument Working Opeartion. In this tutorial on Moving Iron Instrument Working Operation we go through the...
View ArticleTorque Equation Of Moving Iron Instruments
In previous tutorial on Moving Iron Instrument Operation construction & working principle was discussed. In this post moving iron instrument torque equation will be derived.Torque Equation of...
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