how much current does 3ph a.c & d.c motor drawn.Plz.
provide formula with example.

Answers were Sorted based on User's Feedback



how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example...

Answer / dilip

for dc motor Ia = (V-Eb)Ra = (735.5*H.P)/V
for 3-ph motor Ia = (735.5*H.P)/V

Is This Answer Correct ?    3 Yes 1 No

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example...

Answer / dilip

theoritically it is 735.5 but practically 746 W = 1 H.P

Is This Answer Correct ?    2 Yes 0 No

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example...

Answer / mdrameeztp

it is not 735.5 but it is 745.7 , rest of the part in above
answer is true

Is This Answer Correct ?    2 Yes 1 No

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example...

Answer / eng/mohamed

3pH every 1kw drew 2 amp 380 v
every 1 hp drew 1.5 amp
for dc i=p/v for dc and 1bp ac

Eng/mohamed

Is This Answer Correct ?    0 Yes 0 No

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example...

Answer / raghavan

I=p/1.732*v*cos¢ for ac

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

Why not connect relay Y phase for over current and earth fault

1 Answers   HB,


WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB

0 Answers   IBM,


What is the difference between vector surge relay (78) and Pole slip relay (98G)

0 Answers  


1.4 What is meant by CT knee point voltage and how would you determine it

0 Answers  


which of the following is the earliest known literary source of ancient india and indeed of mankind

1 Answers  






what is the fuction of electrical transducer in control pannel?

6 Answers  


What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

0 Answers  


My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

0 Answers   Premier,


What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

0 Answers   JSW,


Relay setting for earth fault of reciprocating and centrifugal compressor motor feeder.Setting will be different or same?

1 Answers   Reliance,


trasnfarmaer core make

0 Answers   MPSEB,


how calculate the electrical load for industry and office

2 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)