What happens if 25 Hz frequency is applied for 400/200,50 Hz
single phase Transformer.Will Voltage increase ?
- 2 Answers
- 10498 Views
- Bhel, Dawlance, IBM, I also Faced
- E-Mail Answers
Answer Posted / raji g
voltage will not increase obviously it will decrease because
the induced emf in the secondary winding the transformer is
directly proportional to the supply frequency.
Hence the voltage will reduce at the secondary winding
when will give the 25Hz.
But it is not advisable to give the 25Hz frequency to 50Hz
designed transformer.Because the transformer impedance
designed such that good efficiency at 50Hz only.
if u give the 25Hz the transformer winding may lead to get
over heat and may burn the windings due to the following reason
the reactacne(xl) of the transformer is direct proportional
to the supply frequency. so for reduced frequency the
impedance of winding will reduced and current will increased
to large level
| Is This Answer Correct ? | 16 Yes | 1 No |
Post New Answer View All Answers
How colour picturetube works & how many year it will works.
what is load vs Torque curve & why it is used?
what r the checklist while installing a 380 kva DG set
how to set the time in digital timer ?
Write down the design procedure of commutaj.
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
How will polarity test of Dy5 Transformer ?
What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.
WHY SEPARATELY EXCITED MACHINE NEEDS EXCITATION BY DC SUPPLY WHY NOT BY AC
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
What is q factor?
sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls
How to calculate Number of Earthing Pits....???
Explain the different methods used in the choice of rotor slots for reduction of harmonic torques in an induction motor.
we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes
