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Power supply of the metro line will be provided by ELM (Power Supply Company in Budapest) The power supply will be of 10 kV with a level of safety that ensures that no main network defects can have an impact on metro operation.

Transformer stations will be installed at the stations, which will transform 10 kV alternating current into 750 V direct current for trains, and into 0.4 kV for mechanical and lighting installations at a high level of safety.

The direct current supply of the trains enable the economical operation of motor cars with power regeneration.