Answer / alok ranjan

when dc supply is given to the transformer momentary emf is generated at the secondary side and collapse suddenly.
because flux does not change periodically due to dc supply.

Answer / tirupathi rao

transformer winding will get damaged, why because for Dc flux produced will be zero,emf generated in winding i zero so difference in supply voltage and emf produced high. as the transformer winging resistance also less so high current flow through winding so transformer get damaged

Answer / arun singh mehra

when a dc supply is given to a transformer initially a flux is generated in primary windings but there is no emf produced because of e=-d(change in flux)/change in time.and there is no
output produced in the secondary output.

Answer / dineshkumar

when the dc supply passes through the transformer winding transformer core will gets magnatised (electro magnetic energy generated)

What is the difference between sensitive earth fault and restricted earth fault in power transformers?

4 Answers  

---

wht is meant by sh6

2 Answers  

---

how the capacitor work on dc?

1 Answers  

---

WHEN I AM CONNECTIN TWO ELCB IN PARALLEL.ONE ELCB TRIPPED...HOW IT HAPPEND??

5 Answers  

---

Why MS rod or flat are used in stead of GI rod or flat in switchyard earth mat ?

2 Answers  

---

what is pmu

1 Answers   Alstom,

---

why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

2 Answers   Bhel,

---

why name plate detail HP/KW rating of a motor is different from measured value HP/KW using formula?

1 Answers   MAHINDRA,

---

how does the harmonics enter into the induction motors?

1 Answers  

---

what is meant by motor protection relay & its working principle ?k

1 Answers   Pricol,

---

what is the full form of ka (100A mccb KA)

1 Answers  

---

where any change in supply line due to the incipient faults in three phase induction motor

2 Answers   ABB,

---