John Graf
Sacramento
Summary
Safety-focused electrician with several years of experience. Highly effective at testing and troubleshooting electrical equipment as well as predicting possible electrical malfunctions. Upbeat when communicating with teammates and customers.
Overview
7
7
years of professional experience
Work History
Power Systems Electrician
The Folsom Dam
05.2024 - 02.2025
- Maintained operational uptime of hydroelectric generators by performing preventive and corrective maintenance during scheduled and emergent outages.
- Performed installation, repair, and maintenance of facility-wide electrical equipment ranging from 120V to 4160V, including transformers, distribution boards, and auxiliary systems.
- Maintained and serviced high-voltage transformers and switchyard equipment supporting hydroelectric power generation.
- Conducted advanced diagnostic testing using micro-ohmmeters on contact surfaces and verified insulation resistance readings for high-voltage hot sticks, including cleaning and maintenance.
- Bench tested timer relays to verify proper sequencing of automatic generator safety systems, including water gate and valve shutdown operations.
- Tested overspeed sensors, oil level minimum/maximum limits, and voltage ranges to ensure proper protective trip functionality.
- Performed dielectric testing, including DC ramping to winding saturation and leakage current analysis.
- Utilized infrared thermography to identify and mitigate abnormal heat sources within electrical systems.
- Troubleshot generator faults with minimal indications, identifying root causes across electrical, mechanical, and fluid systems.
- Maintained and repaired auxiliary equipment supporting hydroelectric generation at Folsom Dam and Nimbus Power facilities.
- Responded to critical power operations and emergency restoration activities.
Field Service Representative
Schneider Electric/ASCO
04.2022 - 05.2024
- Performed scheduled preventive maintenance on critical facility power equipment responsible for emergency backup and power transfer during outages.
- Installed, repaired, and retrofitted internal components of emergency power transfer switches across thousands of models and configurations.
- Diagnosed and serviced interior circuits without available drawings while maintaining strict electrical safety standards and assessing arc flash hazards.
- Troubleshoot complex electrical issues on-site and remotely; provided technical support over the phone to minimize downtime when possible.
- Consulted customers on system upgrades, retrofits, and reliability improvements to enhance long-term performance.
- Responded to emergency service calls nationwide, often mobilizing within 24 hours to support critical facilities.
- Serviced Automatic Transfer Switches (ATS) and critical switching equipment for hospitals, data centers, government buildings, and other mission-critical environments.
- Maintained on-call availability to support urgent outage restoration and emergency repairs.
- Northern California/Greater Bay Area
Nuclear Electrician's Mate Third Class (EMN3)
United States Navy
Yokosuka
03.2018 - 01.2022
- Supervised and performed advanced electrical operations and maintenance on nuclear reactor plant and shipboard electrical distribution systems.
- Operated and maintained 4160V and 450V switchgear, circuit breakers, motor controllers, turbine generators, diesel generators, variable frequency drive cabinets, PLC systems, and associated circuitry.
- Responded rapidly to plant alarms and casualty situations to ensure personnel safety and equipment protection.
- Executed and enforced Lockout/Tagout (LOTO) procedures, including writing, reviewing, and implementing electrical tag-outs using distribution diagrams and schematics.
- Maintained reactor plant and electrical systems in accordance with strict operating procedures and naval nuclear safety standards.
- Worked rotating shifts, weekends, and extended hours in high-tempo operational environments.
- Designated by the Carrier's Commanding Officer to maintain reactor plant parameters within specification in accordance with written operating procedures.
- Directly supervised and monitored nine power plant operators to ensure safe reactor conditions and compliance with nuclear safety requirements.
- Supervised and trained over 30 personnel in electrical operations, reactor safety, and preventive/corrective maintenance practices.
- Managed and completed over 1,500 maintenance actions on critical reactor plant equipment, ranging from routine servicing to complex system repairs.
- Coordinated large-scale maintenance outages to minimize downtime by aligning work windows with supporting departments and external activities.
- Mentored junior personnel in maintenance planning, preparation, and execution using technical manuals, electrical diagrams, and safety protocols.
- USS Ronald Reagan (CVN-76), Yokosuka, Japan
Education
Nuclear Power Training Unit -
Nuclear Power Training Unit (NPTU)
Saratoga Springs, NY02-2018
Naval Nuclear Power School -
Naval Nuclear Power School
Goose Creek, SC05-2017
Nuclear Field "A" School -
Nuclear Field "A" School (Electrician's Mate)
Goose Creek, SC09-2016
Skills
- Power restoration and emergency response
- Equipment reliability and uptime
- Testing and calibration of components
- Electrical equipment operations
- Detailed shift turnover reporting
- Data acquisition systems
- Role efficiency and inclusivity
- Team communication
- Reading and interpreting schematics
- Effective customer relations
- Resource maximization
- Preventive and corrective maintenance
- Advanced troubleshooting
Timeline
Power Systems Electrician
The Folsom Dam
05.2024 - 02.2025
Field Service Representative
Schneider Electric/ASCO
04.2022 - 05.2024
Nuclear Electrician's Mate Third Class (EMN3)
United States Navy
03.2018 - 01.2022
Nuclear Power Training Unit -
Nuclear Power Training Unit (NPTU)
Naval Nuclear Power School -
Naval Nuclear Power School
Nuclear Field "A" School -
Nuclear Field "A" School (Electrician's Mate)