On the basis of the theories, the releasevoltage value of electromagnetic relay in the accelerated storage life testing were fitted and forecased respectively.
A method for improving the ability of JZXC 480 track circuit once adjusting was presented. The method is to in crease the ratio of releasevoltage and work voltage of track relay.
B. Excellent discharge characteristics: especially for long time discharge, and the voltage is stable, more than 90% of the capacity can be almost constant platform releasevoltage.