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
5096 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 the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

0 Answers ABB,

what are factors to be consider to design a HT & LT motor?

1 Answers

how to measure earth pit resistance

7 Answers BARC, BYD Electronic, Construction,

when voltage increases current decreases & vice versa why it is so?

3 Answers

in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?

0 Answers

what is the accaptable voltage between neutral to earth & How to reduse the resistance of earth in chemical earthing

4 Answers

sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

0 Answers

WHAT IS DGA TEST FOR THE TRANSFORMERS.

3 Answers ABB,

what is the working principle/operation/theory of 3-phase rectifier power transformer used in cold rolling mills.

1 Answers TATA,

In underground cables,we have a grading method called 'capacitance grading'.Why is it called 'capacitance grading' although we do not use any capacitor in it?

1 Answers

why we use REF and Differential Protection in one transformers?my doubt is both protections are operated in internal fault only.why we want to use 2 protections?please clarify.

7 Answers

hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

0 Answers

For more Electrical Engineering Interview Questions Click Here