Answer / gautam patel

The Magnetic Balance test is conducted on Transformers to identify inter turn faults and magnetic imbalance.

What are the essential parts of a transformer?

2 Answers   NIT,

---

Whot is the braking capacity for MCCB. How we select different braking capacity.

1 Answers  

---

why the check zone and main zone are used for Busbar Protn. scheem?

0 Answers  

---

Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?

4 Answers  

---

Why carbon brush used in dc motor also why its not used in ac motor?

2 Answers   RRB,

---

What is meant by Active and reactive power?

8 Answers   Micron Electricals, SVIT,

---

why capacitor burst?

2 Answers  

---

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers   Usha Capacitors,

---

How instantanious short circuit current is calculated? its formula?

1 Answers  

---

Define pole pitch?

0 Answers  

---

how the percentage impedance affect the transformer loading when connected in parallel.?

1 Answers  

---

Refernce currents are to be generated using refernce cueernts how can this be done

0 Answers   ABC, Wipro,

---