Current transformer polarity and power flow


by adool_617
Tags: current, flow, polarity, power, transformer
adool_617
adool_617 is offline
#1
May30-11, 02:52 PM
P: 13
Hello

i need to know , does the polarity of the current transformer affects the power measurements in AC systems, and if it does , how it affects the power measurements knowing that in measuring power we use the RMS values

anybody have any idea about this ??

that's to say , if you have a 2000 Amps line and it is three phase line

you connect 3 CTs on each phase ratio 2000/5 then you connect the CT to ammeter which is calibrated to give full scale (2000A) at 5 A

if we connect a KWH meter instead of the ammeter , is polarity important ?
Phys.Org News Partner Engineering news on Phys.org
Lifting the brakes on fuel efficiency
PsiKick's batteryless sensors poised for coming 'Internet of things'
Researcher launches successful tech start-up to help the blind

Register to reply

Related Discussions
can electrical curents flow from generator to transformer General Physics 5
Dual polarity power supply circuit question Electrical Engineering 10
Dual polarity power supply Electrical Engineering 5
Power Generated by a Toroidal Current Transformer Electrical Engineering 3