Answer / ajay jethwa

we can controll the output voltage of generator by changing the exitation...
if we want higher generator output voltage than we have to give more exitation.& vise versa
For frequency control prime mover speed us to be change

Answer / k.prakashchandra

By controlling input to prime mover

How to calcute the cable size for both HT and LT please specify the formula for that Regards Chethan C

1 Answers   Bhel, Student,

---

why full load voltage is less than no load voltage?

4 Answers  

---

Dear Sir / Madam, Actually we requied 64 A MCB, But i have 32 A MCB = 2 No's this two i have to make series connection and we usw any place? isit possible or not......

4 Answers   Hindustan Unilever Limited,

---

Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?

0 Answers  

---

What core magnetic balance test of transformer? How to do this test in a three phase Star star (star-LV, star-HV) transformer? How to measure and where to measure?

1 Answers   Alstom,

---

In a 11kv/433v transformer,at the LT side ie 433 V side why do we need to put 3.5 core Cable upto Panel.The full load rated Amps is 666 at LV side.What value of current will flow through the Nuetral Conductor.Why can't we use 4Core Cable instea of that?

2 Answers  

---

what is KSR type transmission tower? What is LSR type transmission tower?

0 Answers   Ford,

---

kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased

0 Answers  

---

What is Exitation voltage and Exitation current? What is the function of these in Alternator?

2 Answers   TC, Tisco,

---

why is one voltage transformers (instead of three ) installed at the entrence of the incoming line in a substation.

2 Answers  

---

in three phase it represented by R-Y-B.what is full form of R-Y-B.

11 Answers   Sun Pharma, TCS,

---

how can we minimize the off load losses of a distribution transformer which is required to be energized 24x7 ?? capacity of the T/F is 1250 KVA and off load losses are around 2.0 KW.. can we use capacitor bank at the secondary of such a T/F to overcome off load losses? please elaborate briefly...thanks

2 Answers  

---