A <a href="https://en.wikipedia.org/wiki/Pantograph_(transport)" class="extiw" title="w:Pantograph (transport)">pantograph</a> of ED9M electric multiple unit passes <a href="https://en.wikipedia.org/wiki/neutral_section" class="extiw" title="w:neutral section">neutral section</a> of <a href="https://en.wikipedia.org/wiki/25_kV_AC_railway_electrification" class="extiw" title="w:25 kV AC railway electrification">25 kV AC</a> <a href="https://en.wikipedia.org/wiki/overhead_line" class="extiw" title="w:overhead line">overhead line</a> between sections with different phases without lowering. During the passage of this section a main air <a href="https://en.wikipedia.org/wiki/circuit_breaker" class="extiw" title="w:circuit breaker">circuit breaker</a> of a car switches off (visible in front of pantograph). Kursavka station, Stavropol region, Russia
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