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Senior Engineer - Protection & Relay (US Market)
Chennai · Staff/Principal
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What we know about this role
MEDIUM
Illumine is reviewing applications at a steady pace. Expect a standard response time as they evaluate the current pool.
First 72 hours
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Job description
- 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
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