what is effect of reverse c.t connection on metering.

Answer Posted / vels

one phase is reversed then the Energy meter will not give correct reading
but 3 phases are reversed then the current direction shown are wrong and the reading of MW ,MVAR are showing import instead of export

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

1751


How the frame size of a flange mounted AC induction motor is calculated?

1524


how to test and calculat the head and discharge in borewell compressor

1703


A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

1599


How 48-relay (incomplete sequence) functions?

3554






am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

1364


sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

1754


what is two point starter?

1646


How would you calculate power loss in a resistor?

637


Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

1043


Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1514


How phase displacement change in the over current relay coils.

1869


how to conduct dc resistance test for rotor of an alternator and how to measure the rotor dc resistance value theoritically?

2823


why there using acb enclosure in big buildings

1544


I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

1564