2004 Track Circuit Calculations

[sugavanam nagarajan]

Purpose of adding adding Relay end Resistance:
-Ability to detect on poor rail surface & Reduce significance of interference voltage is it correct?

Hi,
I observed that the feed end resistance and drop shunt value increased and these may be result in a condition where the TC may not pick up automatically after the passage of train due to the high resistance.

Regards,
Jenni.

I am slightly surprised that both the feed resistor and the DS increased when there is no relay end resistor. The former I would expect but the latter I would expect to be lower.
Peter