Answer Posted / satya mahesh

load factor(LF) and utilization factor(UF) will play a
major role in transformer selection.
Connected load-4810
Maximum demand in a month-1582 Amps
Average load which will be the average of running loads
came in a month-1173 Amps
LF=average load/max demand
=1173/1582
=0.74
UF=No.of hours running Equip/total hours in a month
=(30*20)/(30*24)
=600/720
=0.83
Transformer size= Connected load X LF X UF
=4810 X 0.74 X 0.83
=2954 Amps
for 2954 Amps 2500 KVA(3484 Amps) transformer was suitable
in continution to the future loads also.

how to calculate percentage impedence at 75 deg C at normal tap

1806

---

What are the types of feedback oscillators?

823

---

The screw thread commonly used for transmission of motion is one of the following types of threads

701

---

If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

1534

---

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

2255

---

---

describe the fully control circuit diagram of ac drives

1369

---

I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

1852

---

in non technical way how can u define POWER FACTOR??

1377

---

How to test Alternator stability test for REF relay

962

---

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1628

---

by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

1526

---

What is meant by reverse polarity and how it can be fixed?

749

---

technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

1550

---

Enlist four components of electrive drives.

1435

---

What is the previous name of Cox's Bazar

1465

---