Answer Posted / gunasekaran

as per standard it is not same cooling is depending upon
the rated MVA percentage impedance depending upon the MVA
rating if low MVA %impedance is low if high MVA %Z is high
in standard upto30MVA we can use ONAN
upto60MVA ONAF
above 60MVA we can use OFAF
upto 1.5MVA AN
if customer asking we can use for colling method for any
rating.

what's the exact magnitude of current, flows through Neutral?

1911

---

How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

2454

---

What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

2617

---

Usage of flywheel diode in relays

1869

---

What is the selection process of breakers. Can any one please give a formulation on same?

2090

---

what is meaning of 230volts ac 50hzs ac supply is it rms or maximum to getting ac 230v what amount of max voltage they will send

2003

---

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

2094

---

do we use neutral grounding for resistive balanced load? if we use what happen?

1742

---

IN dc capacitive reactance is??

1347

---

how many types are their in switchyard or substation(like D,I TYPE), what is differant between them

2073

---

1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks

2417

---

hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

1878

---

how does a liquid starter reduce the starting currents?

2087

---

STATE WORKING OF VACCUM CIRCUIT BRAKER?

1875

---

What is meant by reset level of the relay?

1155

---