Mathan Ganesan

SAS Engineer with hands-on experience in IEC 61850-based substation automation, testing & commissioning, and SCADA-driven power system operations across HV/EHV substations. Strong technical background in integration of IEDs, BCUs, RTUs, gateways, and SCADA servers, including IEC 60870-5-104/101 mapping, point configuration, signal validation, and alarm/event management. Proficient in configuration of GOOSE messaging and Sampled Values (SV) on Station Bus and Process Bus, along with SCADA HMI monitoring, SOE analysis, trends, and real-time status/control verification.

Experienced in control and protection scheme testing, interlock logic validation, auto-reclose and synchro-check functions, and end-to-end system testing. Actively involved in real-time system monitoring, remote switching operations, load management, disturbance handling, and restoration, with strict adherence to PTW and LOTO procedures to ensure operational safety, system reliability.

Substation Automation System Engineer at Oasis Automation & Technologies (Associated with GE VERNOVA T&D) (2022-04 – 2025-08)

Engineering and Testing responsibilities in substation automation solutions.

• Preparation of IO List, SAS Architecture, BoM as per project specifications.
• Performed IEC61850 Configuration for Bay control Units, RTUs, Gateways and Protection Relays.
• Implemented and supported network redundancy solutions based on PRP, HSR, MRP, and RSTP protocols for reliable system performance.
• Configuration of LGOS between the BCU's and IED's.
• Configuration & Integration of Modbus devices with BCU.
• Configured IEC60870-104 Scada Mapping for G500 in DS Agile-Studio.
• Designing of complete HMI including the System Architecture, Single Line Diagram, GAS SLD Diagram, Bay views, Dynamic animations of SLD, Measurement blocks, Annunciations and Control Function Blocks.
• Complete automation and protection scheme verification (Control and Relay Panel) for different voltage levels 765kV, 400kV, 220kV, 66kV and 33kV.
• Configuration and testing of Auto Reclose, Voltage Synchro check functions in Bay Control Units.
• Developed and validated interlocking logics for isolators, circuit breakers, earth switches, and voltage selection schemes.
• Goose Configuration between relays.
• Established network ring architecture and performed troubleshooting for communication networks.
• Installation & testing of SCADA Server, Gateway and RTU systems.
• Troubleshoot the IEC61850 with IED scout.

Testing & Commissioning Engineer at Alfanar Engineering Services (2025-08 – Present)

Testing & Commissioning and Operation & Maintenance of substation automation systems.

• Performed comprehensive component testing including auxiliary relays, contactors, trip relays, lockout relays, and timer relays.
• Conducted CT and VT Insulation resistance test.
• Carried out testing and calibration of multifunction meters.
• Conducted CT testing for 33kV switchgear, including winding resistance, ratio, polarity, and excitation and burden tests.
• Executed protection relay testing for Distance, Backup and Feeder protection relays.
• Configured the CID files for SIPROTEC and Easergy devices.
• Developed and configured logic schemes using CFC charts in Siemens DIGSI 5.
• Performed SAS open-loop testing for 132kV and 33kV bays.
• Conducted scheme checks for 33kV switchgear and 132kV GIS bays to verify protection trips and interlocks.
• Preparation of test reports after testing & commissioning and obtaining approval.
• Making sure Electrical Safety during Testing Jobs.
• Monitor real-time power system parameters including voltage, frequency, load flow, and breaker status through SCADA systems.
• Analyze system trends and event logs to identify abnormalities and prevent potential outages.
• Coordinate load management, load shedding, and restoration activities during system disturbances or maintenance operations.
• Perform remote operation of circuit breakers, isolators, and protection systems via SCADA as per operational procedures.
• Support planned outages, shutdowns, and energization activities by reviewing switching programs and safety clearances.
• Coordinate with Field engineers and technicians for maintenance and troubleshooting.
• Authorize and issue Permit to Work (PTW) and Isolation Certificates to ensure safe maintenance operations
• Ensure accurate tagging, isolation, and LOTO compliance before authorizing field work.
• Provide handover briefings between shifts, ensuring continuity of operations and awareness of ongoing issues.

B.E in Electrical and Electronics Engineering – J.P College of Engineering, Tenkasi (2018-07 – 2022-07)