Manager - Testing & Commissioning - Wind Turbine Specialist

Testing & Commissioning Manager – (Wind Turbine Specialist)
Position Overview

This position is responsible for the planning, execution, coordination, and technical assurance of commissioning activities for Wind Turbine Generators (WTGs) in utility-scale wind power projects. The role ensures that mechanical, electrical, control, protection and grid-interface systems of WTGs are commissioned safely, operate reliably, and fully comply with OEM requirements, statutory regulations, and grid codes prior to handover.

• Review and provide inputs to engineering team to take care of engineering itself
• based on experience.
• Grid compliance and WTG controller limits
• Machine specific challenges faced if any
• Participate in FAT review of WTG control and protection systems (where applicable).
• Develop WTG commissioning procedures, method statements, and risk assessments.
• Coordinate commissioning sequence planning with EPC, OEM, and grid operator.

• Supervise and verify correct completion of:
• Mechanical erection, torquing, alignment, and lubrication
• Electrical installation – LV, MV, transformers, grounding systems
• Ensure readiness of auxiliary systems:
• Pitch and yaw drives
• Hydraulic and lubrication systems
• Emergency and service power supplies

• Lead pre-energization checks including:
• Insulation resistance tests
• Grounding continuity
• Sensitivity: L&T Construction Internal Use
• Phase sequence and voltage checks
• Coordinate transformer energization and LV/MV energization.
• Execute first grid synchronization and progressive power ramp-up.
• Ensure safety compliance during live tests and rotating machinery operation.

• Validate WTG controller parameters as per grid code and PPC philosophy.
• Coordinate LVRT / HVRT, frequency ride-through, and reactive capability tests.
• Verify pitch-based power regulation and ramp-rate control.
• Confirm correct response to curtailment, trip, and fault conditions.

• Support trial run, availability tests, and performance acceptance.
• Review SCADA data, alarms, and event logs.
• Close commissioning punch points and support COD documentation.
• Conduct knowledge transfer and basic training for O&M teams.
• Testing, Commissioning & Troubleshooting
• Responsible for commissioning and grid-compliance testing of wind turbine generators as
• per IEC 61400-1, IEC 61400-21-1, IEC 61400-25, IEC 61400-27-1, IEC 60204-1, UL 6141
• and any other relevant standards

• Insulation & dielectric testing of generators and transformers
• Protection relay testing (OV/UV, OF/UF, differential, earth fault)
• Functional testing of:
• Pitch, yaw, mechanical brake
• Emergency stops and fail-safe systems
• Power curve and performance checks
• Communication tests with plant SCADA and PPC

• Grid-related trips (voltage/frequency instability)
• Pitch or yaw control faults
• Excessive vibration or temperature alarms
• Transformer or converter faults
• Communication failures between WTG and PPC

• Strong understanding of WTG electrical & control systems.
• Familiarity with IEC 61400 series and grid code requirements.
• Ability to analyze turbine event logs and operational trends.
• Experience coordinating multi-disciplinary OEM teams.
• High safety awareness for rotating equipment and work at height.

• Bachelor’s Degree – Electrical / Mechanical Engineering.
• 12–15 years of WTG commissioning experience.
• OEM commissioning authorization strongly preferred.
• Certified Engineer.