Answer Posted / saddam husain

No because all ready transformer R conected.......

What is the working mechanism of OLTC in Power Transformers????

3891

---

What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

3540

---

Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

1528

---

What is dynamo?How it works and what is the function of dynamo in a DG.

2091

---

What difference between ref protection and differential protection ?

1336

---

---

What is the power factor of an alternator at no load?

841

---

hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

1465

---

What are the two segments of nyquist contour.

655

---

1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?

2295

---

Define damping ratio.

782

---

how to select correct size of power cable for inverter duty motor

922

---

bus bar design conditions and sizing pls tell me quickly

1489

---

Give some example of fault limiting devices?

791

---

can i use ups power as a raw power for another ups

1468

---

PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

5743

---