How much energy save vfd if motor run on 50 Hz (full speed)




Answers were Sorted based on User's Feedback



How much energy save vfd if motor run on 50 Hz (full speed)..

Answer / harikesh yadav

If VFD Motor run 50HZ Full Speed then VFD saved energy
From starting Jurk Load because not taken jurk load
starting time.

Is This Answer Correct ?    1 Yes 0 No

How much energy save vfd if motor run on 50 Hz (full speed)..

Answer / nagaraj

VFD stands for variable frequency drive.Change in frequency changes the RPM , which is directly proportional.

Synchronous speed = 120 x f/p

Here 120 is constant, f stands for frequency and p for no. of poles. The operating frequency in INDIA is 50 Hz.

Operating frequency is set at 50Hz, motor runs at rated speed, so no savings in power consumption.

Is This Answer Correct ?    0 Yes 1 No

How much energy save vfd if motor run on 50 Hz (full speed)..

Answer / mayukh maiti

IF THE SUPPLY VOLTAGE IS 50 HZ THEN NO ENERGY IS SAVED BY
THAT V.F.D

Is This Answer Correct ?    0 Yes 2 No



Post New Answer



More Electrical Engineering Interview Questions

Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

0 Answers  


what is the practical application of full adder circuit?

0 Answers   College School Exams Tests,


what is the function of step up transformer?

1 Answers   DEWA,


If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  


Compare OH Transmission & UG Transmission?

2 Answers  






How much allowable difference current between on three phases Dear sir, We have a 1870 KW HT motor, 11 Kv supply,FLA-120A,2870 rpm,2-pole squirrel cage induction Motor.And stator is connected in star connection with Liquid resistance stater to limit the starting current.It has coupled with Centrifugal air compressor.My question is it is loading 73% of FLA taking R-phase 86.7 A, Y-phase-85.4A,B-phase- 78.3A.why the B phase current is that much of difference.Is it allowable, or any one tell me how much allowable current.If any method to calculate.

1 Answers  


why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.

0 Answers   HAL,


what is alternater?

8 Answers  


What happens if ac excitation is given to the field of an alternator

3 Answers   Aurobindo,


why the earth conductor in top of the tranmission line ?

2 Answers  


What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

0 Answers  


what is the working principle of energy saver control panel. please give the complete calculation & theory.

0 Answers   Lupin,






Categories
  • Civil Engineering Interview Questions Civil Engineering (4639)
  • Mechanical Engineering Interview Questions Mechanical Engineering (3703)
  • Electrical Engineering Interview Questions Electrical Engineering (15780)
  • Electronics Communications Interview Questions Electronics Communications (2638)
  • Chemical Engineering Interview Questions Chemical Engineering (762)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (79)
  • Bio Engineering Interview Questions Bio Engineering (30)
  • Metallurgy Interview Questions Metallurgy (95)
  • Industrial Engineering Interview Questions Industrial Engineering (199)
  • Instrumentation Interview Questions Instrumentation (2882)
  • Automobile Engineering Interview Questions Automobile Engineering (171)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (41)
  • Marine Engineering Interview Questions Marine Engineering (62)
  • Power Plant Engineering Interview Questions Power Plant Engineering (170)
  • Engineering AllOther Interview Questions Engineering AllOther (1334)