Senior Engineer - Protection & Relay (US Market)

Location: Chennai, India

Department: Power Engineering

Experience: 7-14 years

Skills: Substation Design, Secondary Design, Accuracy/Attention to Detail, Protection & Control

• You’ll lead protection & control design for transmission and distribution substations (69 kV–500 kV)
• You’ll develop protection philosophies aligned with US utility standards
• You’ll prepare and review Single Line Diagrams (SLDs), three-line diagrams, AC/DC schematics, and wiring diagrams
• You’ll design relay protection schemes including line, transformer, busbar, breaker failure, and feeder protection
• You’ll perform relay coordination studies and protection settings calculations
• You’ll develop logic diagrams, interlocking schemes, and trip matrix documentation
• You’ll prepare protection panel layouts and cable schedules
• You’ll perform short-circuit and coordination studies using industry-standard tools
• You’ll validate CT/PT sizing and burden calculations
• You’ll ensure compliance with ANSI/IEEE and NERC reliability standards
• You’ll support interconnection projects aligned with ISO/RTO requirements such as PJM, MISO, CAISO, and ERCOT
• You’ll review vendor relay configurations and protection settings
• You’ll support FAT, SAT, relay testing procedures, and commissioning documentation
• You’ll interface directly with US utilities and respond to technical review comments

• 7-14 years of experience in Substation Design with exposure to US utility projects
• Strong foundation in:
  • ANSI/IEEE standards (C37 series, IEEE 242, IEEE 399, etc.)
  • Substation physical design & electrical clearances
  • Protection principles for transmission & sub-transmission systems
  • Relay coordination & fault analysis
  • T/PT selection and burden calculations
• Experience designing substations in the 69 kV–500 kV range
• Proficiency in at least one of the following

• Strong knowledge of US utility protection manuals and compliance practices
• Experience preparing calculation packages and protection setting files
• Strong technical documentation aligned with US client expectations

• Experience in renewable interconnection substations (Solar / Wind / BESS)
• Exposure to digital substations
• Experience with relay settings coordination
• Familiarity with SCADA, RTU, and communication architecture for US utilities
• Experience supporting NERC PRC Standards
• Experience supporting FERC-regulated projects
• Prior client-facing consulting experience with North American utilities