A Center Tapped Full wave Rectifier is a circuit which makes unidirectional flow of current through the load during the full cycle of input voltage. Two diodes are so connected across the terminals of center tapped transformer secondary terminals that one diode conducts for positive...
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September 24, 2018 admin
Basic Electronics
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The value of ripple factor of single phase half wave rectifier is equal to 1.21. Since, ripple factor is the ratio of rms value of fluctuating ac component to the average value or dc value. Its value of 1.21 means that, the ac fluctuating component...
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September 23, 2018 admin
AC Circuit
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What is Ripple? Ripple is the fluctuating AC component present in rectified DC output. The output of a rectifier may either be DC current or voltage. In view of this, AC fluctuating component present in DC output voltage is called voltage ripple and that in...
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September 21, 2018 admin
AC Circuit
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Definition Average value of AC or alternating current is expressed by that DC current which transfers across any point of circuit the same charge as is transferred by the AC current for the same time. This means, if AC current I in a circuit flows...
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September 20, 2018 admin
AC Circuit
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Definition Root Mean Square (RMS) value of AC current is defined as the steady or DC current which when flowing through a circuit for a given time period produces the same heat as produced by the AC current flowing through the same circuit for the...
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September 17, 2018 admin
AC Circuit
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The winding used in electrical machine can be broadly classified into two types: Concentrated Winding and Distributed Winding. Concentrated Winding In concentrated type of winding, all the winding turns are wound together in series to form one multi-turn coil. Examples of concentrated winding are field...
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September 15, 2018 admin
Electrical Machines
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Definition of Armature Winding Armature winding in an electrical machine is that winding which carries the load current. In other words, it can also be defined as the winding in which emf is generated due to air gap field flux. It should be noted here...
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September 12, 2018 admin
Electrical Machines
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The main difference between lap and wave winding is the manner of connecting the armature winding coil end to the commutator segment. In lap winding the top and bottom coil ends are connected to adjacent commutator segment whereas in wave winding, they are bent in...
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September 11, 2018 admin
Electrical Machines
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Wave winding posses certain advantages over lap winding. The main advantage of wave winding is requirement of lesser amount of conductor and carbon brushes. This is because the number of parallel path in wave winding is always 2, therefore two carbon brushes are only required....
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September 9, 2018 admin
Electrical Machines
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Pitch Factor or Coil Span Factor Pitch Factor or Coil Span Factor is definite as the ratio of emf generated in short pitch coil to the emf generated in full pitch coil. It is denoted by Kp and its value is always less than unity....
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September 8, 2018 admin
Electrical Machines
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