how we can calculate the transformer size.

Answer Posted / narendra

Check the following
1.) Max connected load
2.) Max demand
3.) Load factor
4.) transformer efficency
5.) % loading
6.) provision for future expansion
Example
Total Connected Load in kW 870.00
Total Maximum Demand in kW (80% of CL) 696.00
Total kVA @ 0.8 PF 870.00
Total kVA @ 0.9 Load Factor 783.00
Transformer Capacity Chosen 2000

Is This Answer Correct ?    14 Yes 13 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

1423


what is difference between line differential and transformer differential?

1239


i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

1728


how to check three phase motor torque value?

1745


can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.

1360






When are the directional relays used?

612


how to select rating of HT Panel

930


Explain about c.t?

704


Can anyone tell me some hints about what type of questions are asked by the interviewer by an Electronics engineer when company is installing an IPP and wants a team of engineers?

1808


A 1F capacitor is charged to 100V initially. A 1H inductor is connected accros the capacitor througha a switch. The current in the circiut when the switch is closed is____

1869


what is reactive power?, why its measured in VA ? is it transient behavior of system?

1793


How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

1592


What happen to generator if i have unbalanced load?

1649


What are the advantages of thermal power plant?

680


what is meant by rotating magnetic filed

1532