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Southern California Edison Protection Engineer 3 [HYBRID] in Pomona, California

Job Description

Join the Clean Energy Revolution

Become a Protection Engineer 3 at Southern California Edison (SCE) and build a better tomorrow. Protection Engineering is one of the most critical organizations in the company due to its technically significant role. Protection Engineering provides support to the Grid Control Center (GCC) on daily system operations, including post-fault event analysis, switching sequences/procedures for in-serving testing, etc. We support field Test technicians on commissioning relays for new and revised relay settings.

Protection Engineering provides technical requirements for design of new capital, infrastructure replacement, substation automation projects for transmission and distribution systems. Protection Engineering is responsible for implementing NERC/WECC compliance programs and other programs such as Special Protection Systems (SPS), Under Frequency Load Shedding (UFLS).

A day in the life - Get ready to think big, work smart and shine bright!

  • Review and analyze daily relay operations for determining correct operation or mis-operation in responding to an electrical system disturbance or anomalies. Make appropriate recommendation/resolution for mitigation to Operations, and report to internal Edison external organizations.

  • Perform system studies, provide protection requirements for design, review and sign off one-line, elementary, logic diagrams and work with other discipline engineers - substation engineers, Distribution Field engineers, project engineers, apparatus engineers - to support sub transmission and distribution substation expansion, substation automation and infrastructure replacement projects.

  • Gather and evaluate line data of transmission, sub-transmission, distribution systems, transformer test data, generator data, etc. Model systems on appropriate software tool, such as CAPE, perform short circuit studies, and protection coordination studies necessary for completing relay settings, perform relay settings, prepare protection summary, coordinate relay settings with neighboring utilities, balancing authorities and perform other required assignments meeting WECC and NERC PRC compliance.

  • Issue Substation Relays and field Auto recloser settings (GE, SEL and Electromagnetic) via ASPEN relay database to the field, support Test technicians in-servicing or commissioning relay settings, review/approve returned as-left relay setting files and communicate with Test technicians for making revisions/changes to relay settings as necessary.

  • Analyze post-fault event using historical data such as DFR traces, digital relay records, or related data.

  • Provide support to the Test Technicians and Operators.

  • Travel to the field may be required from time to time per project job walk or testing needs.


The essentials

  • Bachelor’s Degree in Electrical Engineering or similar.

  • Five (5) or more years of experience with protection, substation and/or distribution engineering in the electric utility industry or equivalent.

The preferred

  • Utilizing Computer Aided Protection Engineering Software (CAPE), CYME, ASPEN relay database or Blue Beam.

  • Interpreting/applying/designing electrical one-line, elementary, protection logic diagrams.

  • Performing system studies, symmetrical component analysis, fault calculation, and set Electromechanical Relays, SEL and GE microprocessor relays using Accelerator and URPC software

  • Developing logic diagrams, programming relay settings and preparing setting documents for Test technicians and support them for in-servicing relays for bulk-power (220/115 kV) transmission lines, bus, transformer banks, capacitor banks, reactor banks, etc.

  • Performing automation of sub-transmission substations, protective relay upgrades in transformer banks, transmission and distribution lines, and protective fuse and auto-recloser setting calculations in distribution lines.

  • Experience using application software such as Microsoft Word, Excel, PowerPoint, Access, Visio, and Project.

  • Good communication skills, oral and written, and applying to customer focus in support of appropriate identification of and response to the client business needs.

You should know …

  • Work Mode: When a return-to-office date has been determined, this position’s work mode is hybrid . The employee will report to an SCE facility for a set number of days with the option to work remotely on the remaining days. Unless otherwise noted, employees are required to reside in the state of California. Further details of this work mode will be discussed at the interview stage.

  • Visit ourCandidate Resource page ( to get meaningful information related to benefits, perks, resources, testing information, and hiring process, and more!

  • This position has been identified as a NERC/CIP impacted position - Prior to being hired, the successful candidate must pass a Personnel Risk Assessment (PRA) or Background Investigation. Once hired, the candidate must complete specified training prior to gaining un-escorted access to assigned work location and performing necessary job duties.


  • This position requires testing and applicants who are identified to continue through the selection process will be invited to test via email. ForInformation Guides ( , please reference test(s): Edison Individual Workstyles (Test #8203). Candidates who have previously passed these assessment(s), in some cases, may not need to retest again for this position.

About Southern California Edison

The people at SCE don't just keep the lights on. Our mission is so much bigger. We’re fueling the kind of innovation that’s changing an entire industry, and quite possibly the planet. Join us and create a future with cleaner energy, while providing our customers with the safety and reliability they demand.

At SCE, we celebrate our differences. We are a proud Equal Opportunity Employer and will not discriminate based on race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status or any other protected status.

We are committed to ensuring that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodations at (833) 343-0727.