Single phase full wave mid point type rectifier , Electrical Engineering

Assignment Help:

Single Phase Full Wave Mid Point Type  Rectifier

A single  phase full wave  mid point  type controlled  rectifier consists  two  thyristors  one centre tapped  transformer  and a RL load  as shown in figure.

 Here O is the  point of secondary winding  of transformer  and turns ration from  primary  to each secondary is unity. Let  the output  current is continuous. For  positive  half  cycle of the input voltage terminal a will be positive  with respect ot O and terminal O will be positive with respect to terminal b.

In this  condition thyristor  T1 is  forward biased. For  negative half  cycle  of  input  voltage  thyristor T2 will be  conducing when  gate  pulse is applied to its gate terminal. Let  us suppose T2 is already conducting. After  positive  and T1  remains in forward  biased .when  gate pulse is applied to T1 at = a it will get turned on and T2  get tumed off with  reverse voltage  2Vm sin a and  load  current  is transferred  from

T2 to T1,, T1 conducts from α to ( Π + α).


Related Discussions:- Single phase full wave mid point type rectifier

State faraday''s law, Faraday's Law Faraday's laws of electromagnetic i...

Faraday's Law Faraday's laws of electromagnetic induction state: i)  An induced e.m.f is setup when the magnetic field linking that circuit changes ii)  The magnitude of

Find the line current after the addition of capacitor bank, Q. Find the lin...

Q. Find the line current after the addition of capacitor bank? A 60-Hz, three-phase motor draws 25 kVA at 0.707 lagging power factor from a 220-V source. It is desired to impro

Explain numeric processor 8087, Explain numeric processor 8087. Numeric...

Explain numeric processor 8087. Numeric processor 8087 is a coprocessor which has been intended to work under the control of the processor 8086 and offer it additional numeric

Which metal has material with lowest resistivity, The material with lowest ...

The material with lowest resistivity is (A) Constantan.         (B) Silver. (C) manganin.            (D) nichrome. Ans: The material with lowest resist

Calculate the maximum radiation intensity, Q. The power gain of an antenna ...

Q. The power gain of an antenna is 10,000. If its input power is 1 kW, calculate the maximum radiation intensity that it can generate.

Princeton and harvard microprocessor architectures, Question a) Explain...

Question a) Explain, with the aid of diagrams, the differences between the Princeton and Harvard microprocessor architectures. b) Describe why the principle of locality of r

Usage of transistor, Usage of transistor: The bipolar junction transis...

Usage of transistor: The bipolar junction transistor that is abbreviated as BJT was the most generally used transistor in the 1960s and 70s. Even later than MOSFETs became ext

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd