Oktyabrsky Electric Railway Car Repair Plant (OEVRZ) has started production of underground battery-operated locomotives with asynchronous traction drive (81-581.4) designed for hauling service trains along deenergized or unelectrified metro lines. The electric locomotive for Metro is a conceptually new product for OEVRZ.
By the end of 2016 OEVRZ will construct two 81-581.4 underground locomotives for GUP Petersburg Metropolitan.
A set of batteries placed in a battery room will ensure for an autonomous operation of the electric loco within 7-8 hours (a working shift). The rolling stock is expected to be equipped with an independent charging plant to provide for traction batteries charging from both a conductor rail and AC power source of 380 V and 50 HZ frequency.
Implementation of the underground battery-operated locomotives will considerably facilitate operations and improve metro infrastructure maintenance quality.
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