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 we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?

1533


How do I calculate/select Droop CT ratio for various capacity of generators?

3076


What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1022


tan delta equation test on alternators

1775


how can you calculate fault level ?

1906






Pl. share your experience about industrial-electronics repair of machine tool.

1456


in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

1428


kindly send me 11KV MV motor differential protection procedure by primary injection method.

1029


what is the circutor?why we use it ?

1838


Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

922


we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1492


briefly explain principle of resistance welding

1422


What is the necessary condition for stability.

734


How to calculate mf when meter equipment and meter are connected

1277


Good day everyone,currently in our premise we using 30kw slip ring motor with resistance bank which we use as forward and reverse at conveyor bar handling. So,my question is how do we calculate the resistance bank which is suit the motor. Kindly,assist me... thank you

1277