Answer Posted / navaneetha

well flux will depend on ratio of voltage and frequency ..
so as the frequency will increase flux will decrease .. so
the magnetising current required will be more.. so there
may be decrease in power factor and also losses will be
more.

what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

2344

---

Assuming that a dedicated neutral earthing transformer is provided for each GT generator, when the two generators are running in parallel, has consideration been given that the earth fault current from one generator stator winding be split between the two neutral earthing transformers? If so, what adverse impact will this have on the operation of the 59N and 27TN devices?

1714

---

in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

2913

---

What is nichols chart?

1404

---

describe the fully control circuit diagram of ac drives

1915

---

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

1912

---

How to calculate multiplying factor of dc energy meter

1713

---

why we used ZNO in Lightning arrester.

2049

---

What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

1820

---

why output is out of phase in case of common emitter?

2182

---

how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

2227

---

Post possible questions for Power Factor Panel FAT / SAT

1450

---

Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1898

---

Why is negative feedback invariably preferred in closed loop system?

2374

---

what is mean by transition resistance of transformer?

4591

---