Form factor & Peak factor in tamil |Halfboil engineers | MD

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1.Form Factor :
Definition: The ratio of the root mean square value to the average value of an alternating quantity (current or voltage) is called Form Factor. The average of all the instantaneous values of current and voltage over one complete cycle is known as the average value of the alternating quantities.
Ir.m.s and Er.m.s are the roots mean square values of the current and the voltage respectively, and Iav and Eav are the average values of the alternating current and the voltage respectively.
For the current varying sinusoidally, the Form Factor is given as:
The value of Form Factor is 1.11
There is a relation between the peak value, the average value, and the root means square (R.M.S) value of an alternating quantity. Therefore, to express the relationship between all these three quantities, the two factors are used, namely as Peak Factor and Form Factor.
The Form Factor for the various sinusoidal waveforms are as follows:
For a sine wave, it is π/2√2 = 1.11072073
For a half-wave rectified sine wave, it is π/2 = 1.5707963
For a full-wave rectified sine wave, it is π/2√2 = 1.11072073
For a square wave, it is equal to 1
For triangle waveform, it is 2/√3 =1.15470054
For sawtooth waveform, it is 2/√3 = 1.15470054
This is all about the form factor.
2.Peak factor :
Definition: Peak Factor is defined as the ratio of maximum value to the R.M.S value of an alternating quantity. The alternating quantities can be voltage or current. The maximum value is the peak value or the crest value or the amplitude of the voltage or current.
The root mean square value is the amount of heat produced by the alternating current will be same when the direct supply of current is passed through the same resistance in the same given time.
Im and Em are the maximum value of the current and the voltage respectively, and Ir.m.s and Er.m.s are the roots mean square value of the alternating current and the voltage respectively.
For the current varying sinusoidally, the peak factor is given as:
The value of Peak Factor is 1.4142