if 50hz transformer is required to be run on 50% frequency
what needs to be done???????????
Answers were Sorted based on User's Feedback
Answer / pankaj rajput
It will trip on over fluxing protection, if the protection
is installed.
It's not a wise situation to connect transformer to a lower
frequency with same voltage. The flux induced in core is
directly proportional to voltage & inversly proportional to
frequency. Hence the core will be over heated/over fluxed
and may get damage due to over heat.
The only remedy is reducing the voltage in same ratio.
| Is This Answer Correct ? | 31 Yes | 2 No |
Answer / ashokreddyreguri
flux is proportional to E\f or V\f
if the frequency is reduced the ratio V\f will increase so
flux will increase.so to maintain this flux magnetizing
current required will increase.this reduces the no load
power factor , so on load power factor is also reduced.
this also reduces o\p of transformer.so V/f ratio of t/f
must be maintained constant.
as 50% of frequency is applied to maintain constant V/f
input voltage applied must be 50%if rated voltage
| Is This Answer Correct ? | 16 Yes | 0 No |
Answer / eeaadil
60 Hz is expensive to generate and safer to operate than 50 Hz
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / abhishek goyal
Xmer is the static device which can produce the voltage in
secondary side WITHOUT CHANGING OF FREQUENCY. (Pl read xmer
principle. NO CHANGE REQUIRED.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / sachin_pawaskar2001
Nothing............only you will get 25hz frequency at out
put.
| Is This Answer Correct ? | 0 Yes | 24 No |
can you plz send l&t aptitude questions if available its urgent plz plz plz
What are safety features considered for Lifts during emergency?
what is different between 51N and 51G functions relay?
Explain the role of a car driver as one of a feedback mechanism.
which type sylbuse involved
In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?
how many earthing is required for sever room?
CTs Ratio
If current and resistance in a circuit is increased by 20%, what will happen to its voltage drop??
WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???
electromechanical relay type identification example : type=tjmh t-stants for j- m- h-
how you taken aotitude test
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)