how can we minimize the off load losses of a distribution transformer which is

how can we minimize the off load losses of a distribution
transformer which is required to be energized 24x7 ??
capacity of the T/F is 1250 KVA and off load losses are
around 2.0 KW.. can we use capacitor bank at the secondary
of such a T/F to overcome off load losses? please elaborate
briefly...thanks

Question Posted / ahmad yousuf

2 Answers
4998 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

how can we minimize the off load losses of a distribution transformer which is required to be energ..

Answer / ahmad yousuf

need answers from Transformer specialists..!!

Is This Answer Correct ?

1 Yes

0 No

how can we minimize the off load losses of a distribution transformer which is required to be energ..

Answer / shariff

Distribution transformers are to be charged 24x7 as they
have to supply to the consumers. These transformers are
loaded in a day ( 24 hrs) with different loads, i.e more
load during peak hours and light loads during off peak
hours. Whatever the load or no load on this trf the off
load losses will be present in the trfs and cant be
avoided. The capacitors connecting sec. will not help in
any way and that will be used only for the pf improvement.
Hence this trf efficency will be calculated as ALL-DAY
EFFCICIENCY... For more the the effciency the trf should be
loaded to its rating(100%). The noload (offload) losses
cant be supressed in the transformers as this is part of
the loss occurred to magntize the core.

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

what is difference between ac voltage and ac current

3 Answers TATA,

X/R ratio in 11kv transmission line is?

1 Answers RRB,

What is meant by a stray loss of a induction motor??? What is the equation to find it

0 Answers

why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers JK Cement,

Meggering minimum acceptable Ohms for insulation resistance.

1 Answers TATA, Wood Group,

how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 Answers

We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

2 Answers

what is difference b/w earth and ground?

7 Answers TATA, TCS,

why 2 phase is used in argc furnace? why 6 phase is used in converting machinery?

1 Answers

What happen if LV supply is fed to a HT motor?

19 Answers ITC Infotech, Jindal,

Did RMU have ct and pt ?

0 Answers

AC 230V BULB GIVING DC SUPPLY WHAT HAPPENS?

2 Answers

For more Electrical Engineering Interview Questions Click Here