BY SySTem

Power Supply Systems for Rail Operations

Rail power supply systems support train operations through substations, traction power, and energy management infrastructure. These systems are distributed and interconnected, often tied to external utilities, and require protection that does not interrupt power delivery.

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Challenges

The Main Challenges in Securing Power Supply Systems

Power infrastructure is distributed & remotely operated

Substations, feeders, and switching posts are spread across large territories, relying on RTUs (Remote Terminal Units) This makes centralized oversight difficult and increases reliance on remote monitoring and control via protocols like IEC 60870-5-104.

Rail power systems interface with external utilities and SCADA environments

Integration with grid operators and legacy control systems introduces dependencies beyond the rail domain, like on external DNP3 or IEC 61850 connections. These connections expand exposure and complicate attribution when anomalous behavior occurs.

Disruption can have immediate, network-wide impact

Power issues affect multiple lines, services, and assets simultaneously. Security incidents must be detected and handled prioritizing stability. Response must ensure controlled recovery of the overhead catenary or third rail power.

OUR Solution

How CylusOne Secures Power Supply Systems

Operational Insight Into Rail Power Control Systems

CylusOne secures rail power environments by monitoring operational communications across substations, control centers, and field devices without interfering with control logic and PLCs (Programmable Logic Controller). It establishes a clear picture of how power systems interact under normal operating conditions across the SCADA network, including RTU/PLC command paths. This is achieved through the parsing of SCADA protocols with CylusOne deep packet inspection (DPI) capabilities, to analyze the content of protocols like IEC 60870-5-104, DNP3 or IEC 61850.

Identifying Abnormal Power System Control Activity

CylusOne identifies deviations that may indicate cyber risk, misconfiguration, or abnormal control activity. By contextualizing anomalies within power system operations, it helps teams distinguish between legitimate operational changes and potential threats.

Rail-Safe Management of Power System Risk

CylusOne supports coordinated, rail-safe response by enabling teams to assess scope and impact across interconnected power assets. This allows operators to contain issues carefully while maintaining power availability and protecting the wider rail network.

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