Answer / vishal ingle

the CT works on the principle of
Primary AT = Secondary AT
When current is flowing through primary, there must be
path for the secondary current to flow.
Else heavy ovevoltage will be induced in the secondary
winding which is sufficient for insulation failure and
busrcting of CT.
Hence CT secondary should always be short circuited

Answer / k

The output voltage will rise trying to develop current until
it reaches the saturation voltage of the coil at that
frequency. At that point, the voltage will cease to rise and
the transformer will add no additional impedance to the
driving current. Therefore,the output voltage of a current
transformer will be its saturation voltage at the operating
frequency.

How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

0 Answers  

---

what is the working principle of tube light?

2 Answers  

---

How many types of fault occur in a 3-phase power system?

2 Answers  

---

what purose of the double circuit transmission line phase of the line phase changed for circuit-1 for Circuit-2 R-Y-B B-Y-R

0 Answers   NCC,

---

How to select the cable size for the given load ?Pls explain the Formulae

3 Answers  

---

why ac generator ratings in kva only why not kw ????????????? ?

7 Answers  

---

what is the thumb rule for determination resistance of resistor?

0 Answers   Siemens,

---

For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?

5 Answers   DPL, NTPC,

---

how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB... pls answer this question and if possible send me the ckt diagram..

2 Answers  

---

clarify types of motor operated valves and advantages

0 Answers  

---

why high voltage is reqiured or L.T. panels? what type of tests should be taken for electrical panels?

2 Answers  

---

If induction motor load is incresed motor speed decrases.But in syncronous motor load incrases speed canstant why?

5 Answers  

---