Senior Operations Electrical Engineer (Protection & Control)
Posted Aug 25, 2026 · We last checked this listing on Oct 6, 2026
Likely interview questions for this role
Written from this job description, not a generic list. Each one notes what the interviewer is really checking.
About your past
Tell me about a protection issue you found that others had missed.
What they are checking: Whether they have the depth and curiosity to catch subtle protection problems before they cause outages.
Describe a time you were the go-to technical person for a hard problem. How did you handle that role?
What they are checking: Whether they can lead technically and support others, since this role is the lead resource for protection issues.
What would you do
A wind site keeps tripping offline during storms, and the cause is unclear. What do you do?
What they are checking: Whether they can lead a systematic investigation and coordinate with field teams and manufacturers.
Field technicians want to change a relay setting to stop nuisance trips. How do you respond?
What they are checking: Whether they protect safety and coordination while still helping the field solve a real problem.
About the work
Walk me through how you would analyze a relay event at a solar substation after an unexpected trip.
What they are checking: Whether they can pull event records, read waveforms and find the root cause in a structured way.
How does protection for inverter-based resources differ from protection for traditional synchronous generators?
What they are checking: Whether they understand limited fault current and inverter behavior that change how protection schemes work.
How do you check relay settings and coordination across a collection system, substation and gen-tie line?
What they are checking: Whether they can review coordination across voltage levels so the right device trips first.
What NERC standards apply to protection systems at generation sites, and how do you support compliance?
What they are checking: Whether they understand reliability standards like PRC requirements that apply to the fleet.
How would you write an event report so that both engineers and managers can understand it?
What they are checking: Whether they can communicate clearly at different technical levels, which the posting stresses for reporting.
What relay platforms, such as SEL or GE, have you worked with, and what do you like about each?
What they are checking: Whether they have real hands-on experience with the devices used across substations.
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Practice this out loudThe full job description
As published by Invenergy.