Effect of Over Zone Feeding on Rail Potential and Stray Current in DC Mass Transit System

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Symbol</td><td class="align_center">Values</td><td class="align_left">Operating characteristic</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left"><i>U</i>&gt;</td><td class="align_center">92 VDC</td><td class="align_left">Switches on with 0.1 s delay and switches off after 10 s. </td></tr><tr><td class="align_left"><i>U</i>≫</td><td class="align_center">150 VDC</td><td class="align_left">Switches on with no delay and switches off after 10 s.</td></tr><tr><td class="align_left"><i>U⋙</i></td><td class="align_center">600 VDC</td><td class="align_left">Switches on with no delay and remains on until being switched off artificially</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mathematical Problems in Engineering

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Table 1

Table 1: Effect of Over Zone Feeding on Rail Potential and Stray Current in DC Mass Transit System 