if the transformer at full load have a iron loss =900w and copper loss = 1600w .

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the load will the transformer has a maximum efficiency?

Question Posted / happyboopathy

3 Answers
16828 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the..

Answer / happyboopathy

75%

Is This Answer Correct ?

32 Yes

3 No

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the..

Answer / hi2know

We know that at maximum efficiency in %= √Pi/Pc * 100 = √900/1600 * 100= 3/4 * 100= 75%

Is This Answer Correct ?

20 Yes

0 No

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the..

Answer / bala

the exact answer is 72%.because the condition for maximum efficiency is variable loss=constant loss.here constant loss=900,variable loss=1600 at full load.so when variable loss=900 the transformer may reach its maximum efficiency.so efficiency=((900+900)/2500)x100=72%

Is This Answer Correct ?

8 Yes

7 No

Post New Answer

More Electrical Engineering Interview Questions

pls define kvarh

2 Answers

1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

0 Answers Areva,

We have got the HT connection of 1000 KVA in which we have installed a seprate APFC panel at the PCC end & seprate KWH meter is installed. My question is that does the KWH reading shown in the meter is a part of the Consumption ???? ( approx 500 units is shown)

1 Answers

how the earhing is done on ship and airplane.

2 Answers

Frequency in the control system represents? Continuous system in time domain ? In frequency domain?

1 Answers CCP,

What is meant by SMPS how it working ... and where it used

2 Answers MTS,

how much amps will get from a 360/11kv line

2 Answers

Hydro P.P. run @ 600 rpm,8pole, Nucler P.P @ 1500rpm 4 pole , ThermlP.P @ 3000 rpm 2 pole.Why this diffrence??? when we can generate electricity @ 600 rpm then Why we had incresed speed in NPP & TPP???

3 Answers

What is the difference between single core 2 wire and single core 3 wire system? Which application we are using this? and for What purpose we are using this?

0 Answers

ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers

in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com

0 Answers

funtion of choke

4 Answers L&T,

For more Electrical Engineering Interview Questions Click Here