is there any difference between protection C.T and measuring C.T?if yes then w

is there any difference between protection C.T and
measuring C.T?if yes then what is the difference?

Question Posted / tushar

4 Answers
12313 Views
BARC, Century Rayon, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

is there any difference between protection C.T and measuring C.T?if yes then what is the differenc..

ct used for protection has to carry full load current and
fault current.ct core shudnt get saturated while carryin
fault current.So the ct used for protection shud hav high
saturation factor.But ct used for measuring shud hav high
accuracy

Is This Answer Correct ?

17 Yes

4 No

is there any difference between protection C.T and measuring C.T?if yes then what is the differenc..

Answer / gunasekaran

protection ct is operating below the knee point voltage but
metering ct is operating almost saturation point.accuracy is
more in metering ct accuracy is not important under normal
condition. metering ct accuracy is 25%to 120% of the rated
current but protection ct is not like that suppose the ct
5P10 and 20VA burden 10times current in primary 5% error is
acceptable up to 10 times current it will feed 20VA burden

Is This Answer Correct ?

9 Yes

2 No

is there any difference between protection C.T and measuring C.T?if yes then what is the differenc..

Answer / d.lakshmi narayana

The difference of protection ct & measuring ct is the
protection ct secondary current is very accuracy .Ex 600/1A
ct is the sec current is Exactly coming 1A But metering ct
is not accuracy That same ct is coming Sec current is
0.98--0.97 A

Is This Answer Correct ?

2 Yes

4 No

is there any difference between protection C.T and measuring C.T?if yes then what is the differenc..

Answer / ahir ashish

protection ct is depand upon the ratio error and measureing
ct is depand upon phase angle error.

Is This Answer Correct ?

2 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?

0 Answers

How shall i select the value of capacitor or inductor in a system?

0 Answers

what is mean by derating factor?

4 Answers Essar,

formula for cable size calculation for current?

10 Answers KL Power, ONGC, RL Clean Power Pvt Ltd RLCPPL, SAS, Sobha Developers,

how much up to LT Voltage range?

4 Answers

What is grid collapse? what is the reason for it?

0 Answers

why are use corona ring in high tension line switchgear?

1 Answers

we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

3 Answers CFCL,

HOW TO CUT A CAKE IN 8 PIECES IN 1 STROKE

3 Answers

when transformer oil should be filtered/tested?

3 Answers

how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

0 Answers Asahi, BARC, K-Electric,

i need to calculate high voltage line power factor daily basics but there is meter reading kwh and kvah while calculating power factor kwh/kvah formula was right. for examble there is point c=13kwh c=1.8 lag c=1.2 lead and c=14.5kvah like that i know that p.f =kwh/kvah but c=1.8lag kvarh and c=1.2lead kvarh points i dont know if u know please reply

1 Answers

For more Electrical Engineering Interview Questions Click Here