what is ALF and ISF in
current transformer?

Answer Posted / jim sreedharan

ALF= Accuracy Limit Factor
ISF= Instrument Security Factor

Is This Answer Correct ?    20 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Differentiate between real and apparent power?

665


I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

1983


What is the name of the winding from which the supply is taken for load connections?

638


What is mason's gain formula?

783


Earth leakage relay basic knowledge principle

1742






While testing a ZCT what parameters have to check or measure?

1894


what is harmonics? what are the factors it will depend upon

1542


10 Mtr Hight of Lighting Arrestar how much area coverd??

2027


how to select proper cable for ct wiring so that drop within the limit.

1462


how does high earth to neutral voltage affects electronic circuit?

1294


Describe Non I.S. Earth System and why is it used?

1296


What are the types of transformers according to the arrangement of iron cores?

618


What current flows in the transformer primary when its secondary is open?

644


When MICC cables used ?

1609


What are the types of excitation system?

1478