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Energy Oil Gas (81) - Teaching (427)
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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.
6429min 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 3215how to prepare for exam for the post of DIPLOMA TRAINEE at HAL and also i want previous question papers.please send me.
1902Hi..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
1874Dear Freinds tell me Answer for this question who knows? 1) What is the role of Indian Air Force "Ground Dutty Officer" ?...
1641What was the cut off for SSC Tax assistant examination in previous year and what may be the cut off this year?
1711hi 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 5576plz send me last 10 years bank clerk papers for union bank clerk for preparation. thank u..plz hurry up..its urgent
1640
Do you think that extra-curricular activities are important?
You give an assignment. A student ridicules the assignment, saying it does not make sense. What would you do?
is there any training istitute for mcx and share trading in Ahmedabad ?
We want that when we type baishakh and drag the fill handle,Excel should produce jestha, Aashadh and so on.What will you have to set to do that ?
consultancies which provide experience letters in hyderabad for SAS JOBS
Can the price of Gold can be controlled? If can, by whom? How?
What is Nusselt Numbers?
Hi all this is ATUL this side I have given my interview for SBI CLERK GRADE ON 28/04/2010 at DEHRADUN SBI LEARNING CENTER . If there is any one else who had attended interview on the same date/venue in morning session plz contat to me regarding further advancement about the recr. Process. Please be in touch My phone no is 09312813345 Email –id atulkumaronline@gamil.com Or find me on facebook at facebook.com/atulkumaronline
Which is best institute for ArcObject in Hyderabad..?
Explain what is Power Shares DB Energy Fund?
How will you deal with parents who are angry to see their child’s low grades?
What community activities would you like to be associated with? Why?
How would you make your subject interesting to a class of uninterested low ability pupils?
Hey Guys, can somebody suggest me how to consantrate on study because i m going to appear a tough competative exam and i m detuch with study about 4,5 years.It's not a multipal choose type exam. plzzzzzzzzzzzzzzzzz suggest me.
Mahatma Budhy got enlightment under the Banyan tree (Bat briksha) then why there are peepal tree in Bodh Gaya
