24-06-2012, 05:49 PM
I am a bit confused for the calculation of it. Could anyone point out my mistakes?
Can i use the pickup current only as shown in the attachment to calculate the feed resistance? So, it will only include Ballast Resistance, Relay Resistance and Feed Resistance.
From another post, it shows an approach by assuming the drop away % is 65% of Pick-up current. It will include Shunt Resistance, Ballast Resistance, Relay Resistance and Feed Resistance in the calculation. The Feed resistance will be about 3.36ohm.
Which one is correct??
Thanks in advance!!
Can i use the pickup current only as shown in the attachment to calculate the feed resistance? So, it will only include Ballast Resistance, Relay Resistance and Feed Resistance.
From another post, it shows an approach by assuming the drop away % is 65% of Pick-up current. It will include Shunt Resistance, Ballast Resistance, Relay Resistance and Feed Resistance in the calculation. The Feed resistance will be about 3.36ohm.
Which one is correct??
Thanks in advance!!