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Thyristor convertor type AVR(Automatic Voltage Regulator) is made of Thyristors(Silicon Controlled Rectifiers,SCRs). We know that output DC voltage from an SCR will not only depend upon the r.m.s. value of Input voltage applied, but also at the angle at which the input AC cycle is fired (using gate signal). If the firing angle is zero(in a simple circuit), then maximum DC output voltage will be obtained.If the firing angle is changed from 0 to 180,then maximum to minimum voltage is obtained. This property could be used to build an AVR. The firing angle proportional to Output voltage could be used to trigger the thyristor,in a closed loop manner and a nearly constant DC voltage(Average Value) can be obtained.An invertor circuitory could be utilised to get a regulated AC supply. Many other configurations can be build from thyristors to get a regulated AC supply.
6919min qualification for sbi clerck is 10+2, so can a clerck b reach to an officer rank at any time in future by promotion or departmental examination with having no graduation degree.
1 3904how to prepare for exam for the post of DIPLOMA TRAINEE at HAL and also i want previous question papers.please send me.
2384Hi..I am Ramya Naveen...I hav applied for clerical post in karnatak bank...i m having exam on jan 4 ,2010.Pls send some sample papers to my email id, i.e, ramyanavi@gmail.com
2369Dear Freinds tell me Answer for this question who knows? 1) What is the role of Indian Air Force "Ground Dutty Officer" ?...
2089What was the cut off for SSC Tax assistant examination in previous year and what may be the cut off this year?
2204hi iam selected for boi interview,they have asked me to bring an application form along with call letter where can i find that application form??will they give at the venue,or shud i download it from somewhere?? please answer
3 6741plz send me last 10 years bank clerk papers for union bank clerk for preparation. thank u..plz hurry up..its urgent
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How to edit SAM file? any one can help me?
Is my transfer certificate issued by college is my character certificate?
What is mean by stacking?
When students say they want their teacher to be fair, what do you think they mean?
WHY DO YOU WANT TO JOIN AS CLERK IN BANK AFTER M.SC IN BIOTECHOLOGY
hello, how it is possible as you replied my id i was selected the indian bank clerical exam!!!!!!!!! hmmm. ok if i selected means, send me the result link website.. i will search and tell to thanks for you.. ok
plz send me last 10 years bank clerk papers for obc clerk paer preparation
Pl. Brief scope for Bsc nursing in India
How would you help an individual student who seemed to be struggling in class?
Q.1)IM A UK BORN PERSON. NOW IM MARRIED AND HAVE TWO KIDS THAT HOLD PAKISTANI NATIONALITY.NOW I WANT TO APPLY FOR UK VISIT VISA.WHAT ARE THE REUIREMENTS THAT ARE NEEDED TO BE FULFILLED FOR THE VISA?
what is capital,finance in accountancy??????????
what is stand for PPPP?
Describe your experience(s) working in an urban setting.
What experience do you have in schools?
What are your thoughts on the number of shows/contests you should attend each semester?
