Larsen & Toubro

Manager - Protection Relay Testing and Commissioning

Larsen & Toubro

Riyadh, Riyadh Province, Saudi Arabia · Full Time

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Experience
Any
Salary
—
Openings
1
Posted
1 week ago
Work mode
In office
Resume
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Job description

Role Overview

We are seeking a Manager to oversee protection relay testing and commissioning tasks for large-scale utility solar PV installations, substations, switchyards, and grid interconnection points based in Riyadh, Saudi Arabia.

Key Responsibilities

  • Direct and manage all protection relay testing and commissioning procedures for utility-scale solar power plants and associated electrical infrastructure.
  • Supervise testing activities on various protection relays including overcurrent, earth fault, differential, distance, transformer, busbar, and line protections.
  • Analyze and verify protection coordination studies, relay settings, protection schematics, single-line diagrams, and control wiring drawings.
  • Conduct and oversee secondary and primary injection tests, functional verifications, trip circuit testing, and comprehensive end-to-end protection tests.
  • Ensure seamless integration and testing of protection relays interfacing with SCADA, RTU, and substation automation platforms.
  • Liaise and coordinate with EPC contractors, consultants, OEMs, utility companies, and client representatives throughout testing and commissioning phases.
  • Control testing scheduling, manpower distribution, equipment readiness, and on-site task execution.
  • Ensure conformity to IEC, IEEE standards, utility requirements, project guidelines, and pre-approved testing protocols.
  • Troubleshoot issues related to relay malfunctions, wiring discrepancies, communication breakdowns, and abnormalities in protection schemes.
  • Prepare, review, and validate relay test documentation, commissioning reports, punch lists, and handover materials.
  • Oversee calibration and correct usage of relay testing instruments such as OMICRON and Megger kits.
  • Enforce site safety norms, manage permit-to-work processes, and uphold quality control during all testing activities.
  • Provide technical mentorship and training to engineers and technicians involved in relay testing.
  • Support activities related to grid synchronization, energization, performance testing, and the final project turnover.
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