I have a power distribution unit (PDU) used in servers . It has current rating of 32 A. I want to measure this current and convert it into proportional voltage using CT (current transformer). The current of 32 A passing through live cable of PDU . This wire is passed through 1 CT . Its turns ratio is 1:2500. I will connect a burden resistor of 7.5 ohm accros CT and measure voltage across burden resistor .
As per theory of transformers, V1/V2=N1/N2 =I2/I1 . Suppose V1=Vin =230 , I1=Iin=32A , N1=1, N2=2500 . Here , So V2 should be 230*2500= 575000V and I2=Iout should be I1/2500=0.0128A .When I performed simulation of the above schematic, I am getting same I2 value but V2 is 96mV? I think they done following calculation V2=Vout=I2*Rburdon= 0.0128*7.5=96mV .
But I don't understand how it is possible ? Why simulation results are showing V2=96mV instead of 575000V?How both current and voltage values obtained at secondary of CT are in range of milli-volt/ ampere ?What about transformer turns ratio relationship?