How can calculate the efficency of the rectifier. input
240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

Answer Posted / sam

input p=v*i cos pi

=1176W
dc p=v*i

=3380.4

eff 34.89%

Is This Answer Correct ?    3 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?

1438


when qty of cable being purchased is not sufficient according to the standard,what should the inspector do to ensure its quality according to the standard?

1550


what is mean by transition resistance of transformer?

3971


what is proper capacitor placement? How to evaluate capacitor size?

1660


how the works electronic energy meter?

1676






what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?

1586


Why wind turbines wheels rotate constantly

651


what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

3052


how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

2361


what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.

3718


how to erect roof control panel?

1549


why servomotor motor? where i apply for best output?

1566


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1530


how can i find cable size from current rating?

1333


If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?

1748