high watt resistor for ct protection

Thread Starter

Avicreats

Joined Jan 18, 2013
19
Hello evryone,

I am conditioning a current using a circuit.I have a 80/2 current transformer(ct) which is connected to a live load.The o/p of the ct will be 0-2 ampswhich i have to condition into a voltage.
We know secondary of ct should not be kept in open.So theoritically,if we place a high wattage resistor in parallel to the ct,will it avoid the open ckt if a fault occurs.

So using a 1ohm 10watt resistor, can it withstand the maximum current of 2amps from the ct. p=i*i*r. so i=2A,r=1ohm.and thereby p=4watt.iam using 10watt for best protection
is my calculation right...
Plz anyone help me out of this...
 
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