Advantages of short circuit and open circuit tests of a transformer?

Advantages of short circuit and open circuit tests of a
transformer?

Question Posted / zohaib mirza

3 Answers
29761 Views
Engineering, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Advantages of short circuit and open circuit tests of a transformer?..

Answer / deepak24

1. SCT and OCT are performed to determine Copper and Iron Loss respectively. so by obtaining these values we can obtain efficiency as follows-
efficiency = input/(input+losses)
2. efficiency can be found for any desired load without connecting it to full load.
3. power consumption is less as compare to full load test.

Is This Answer Correct ?

43 Yes

12 No

Advantages of short circuit and open circuit tests of a transformer?..

Answer / binayak dey

In the open circuit test as the high internal resistance voltmeter is connected to the high voltage side and the low voltage side is loaded so the current flowing through the low voltage side is determined by the connected ammeter.so the copper loss is neglected and the power loss will also be neglected. So the power factor is minimise and hence the risk factor is minimum.

Is This Answer Correct ?

8 Yes

2 No

Advantages of short circuit and open circuit tests of a transformer?..

Answer / hassan

Open circuit test : Finding (Core losses) Rc & Xm.
,Finding Voltage with on load.

Short circuit test:Finding Equivalent (Resistance of windings & leakages flux) .

Is This Answer Correct ?

4 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

why breather cap filled with oil?

7 Answers

What is the Ohms low calculation

2 Answers

why inductivedrop in dc motor neglected

2 Answers

What is the actual meaning between the energy conservation and energy saving ?

3 Answers

1 HP = how many Kva

5 Answers

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases voltage A does not alter B decreases C increases D none of above

1 Answers

what is function of reactor coil in Power factor correction panel

1 Answers

In 11kv transmission line whats the maximum power can be drawn?

1 Answers Concast, Prestige,

whats the application of voltage regulation? and whats the voltage regulation's device?

0 Answers

WHAT DRESS I SHOULD WEAR WHILE ATTENDING AN INTERVIEW? PLEASE SPECIFY THE STYLE AND COLOUR. CAN A LADY WEAR CHUDIDAR FOR AN INTERVIEW?

6 Answers Wipro,

1000 W bulb takes 4.16 Amps at 240 volt then what will be the KWH & if i am using 1000 W bulb at 180 Volt the amps will be 5.55 then what will be KWH????????????????

2 Answers

How to select earthing strip for 100kw induction motor ?

2 Answers

For more Electrical Engineering Interview Questions Click Here