Traction substations

In traction substations, batteries are used to provide DC power for switchgear protection. The DC bus on traction substations is 110Vdc (55 x 2V cells). This voltage is used to induce a trip condition on the breaker when there is a fault, or overcurrent condition.

The same DC bus is also used for closing the breaker to ensure power supply. Due to the critical nature of switchgear protection, reliable batteries with a long service life are required.

Chloride Faure-X Standby Chloride Brochure Plante

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