Senior Electrical
Test Engineer
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Electrical Substation
Testing
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Apply today
Electrical Substation
Testing
Add paragraph text. Click “Edit Text” to update the font, size and more. To change and reuse text themes, go to Site Styles.
Electrical Substation
Testing
Electrical Substation
Testing
Add paragraph text. Click “Edit Text” to update the font, size and more. To change and reuse text themes, go to Site Styles.
Electrical Substation
Testing
Sentinel Electric Inc. Careers
Since 2001, providing NERC-compliant commissioning, maintenance, and third-party acceptance testing for critical electrical infrastructure.
2001 | The Foundation
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Established as an independent leader in Georgia with headquarters in Palmetto
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Specializes in commissioning, acceptance testing, and maintenance
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Serves transmission substations, distribution and generation plants, and large-scale power users.
Growth & Industry Evolution
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Proven leader in independent electrical testing services since 2001
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Evolving into a trusted partner for utility, transmission and generation clients
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Delivering reliable, high-quality services at competitive prices.
2026 | Milestone of Trust
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Celebrating 25 years of safety, reliability, and measured authority in electrical testing
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Ongoing commitment to supporting national grid infrastructure
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Commemorating a quarter-century of service with a new 25-Year anniversary logo.
SAFETY FIRST
TECHNICAL EXPERTISE
NERC CERTIFIED
Protective Relays
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Setting, testing and calibration of electro-mechanical type relays
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Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
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“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Protective Relays
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Setting, testing and calibration of electro-mechanical type relays
-
Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
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“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Power Line Carrier
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Line Traps
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Line Tuners
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Transmitters and Receivers
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“End to End” system testing
Power Line Carrier
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Line Traps
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Line Tuners
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Transmitters and Receivers
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“End to End” system testing
In compliance with PRC - 005 NERC reliability requirements
Sentinel Electric Inc. provides testing and commissioning services to utilities for their protection and control projects. On a typical project (apparatus change out or relay protection upgrade), Sentinel Electric Inc. will dedicate a Commissioning Engineer to prepare, oversee, test and install those components and systems. Our Commissioning Engineers are experienced in commissioning of greenfield projects as well as modifications. Some of the Commissioning Engineer’s responsibilities are to review the design drawings, develop and execute test plans provide technical direction to the protective relay engineer, equipment specialist and control board wiremen, and perform final in-service checks when bringing the equipment online for the first time. To learn more about our substation testing, contact us today.
Electrical Substation Testing
Protective Relays
-
Setting, testing and calibration of electro-mechanical type relays
-
Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
-
“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Power Line Carrier
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Line Traps
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Line Tuners
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Transmitters and Receivers
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“End to End” system testing
Protective Relays
-
Setting, testing and calibration of electro-mechanical type relays
-
Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
-
“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Power Line Carrier
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Line Traps
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Line Tuners
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Transmitters and Receivers
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“End to End” system testing
Functional Testing
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Circuit verification of AC and DC circuits from schematics, three-lines, one-lines and manufacturer drawings
Protective Relays
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Setting, testing and calibration of electro-mechanical type relays
-
Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
-
“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Electrical Substation
Testing
Power Generator Station Testing
Project
Management
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Setting, testing and calibration of electro-mechanical type relays
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Setting and testing of micro-processor type relays, such as, Schweitzer, ABB, RFL, Beckwith, Multilin, GE, Siemens and Basler
-
“End to End” system testing utilizing Doble F6150 / Omicron 356 satellite technology
Protective Relays 1
Power Line Carrier 2
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Line Traps
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Line Tuners
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Transmitters and Receivers
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“End to End” system testing
Functional Testing 3
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Circuit verification of AC and DC circuits from schematics, three-lines, one-lines and manufacturer drawings
Power Circuit Breakers 4
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Breaker timing, velocity, voltage withstand and contact resistance
Power Transformers 5
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Power Factor (Doble)
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Transformers Turns Ratio (TTR)
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Winding resistance
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Megger
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Verification of: operation of the rapid pressure rise relay, nitrogen system alarms, temperature monitor system, oil level system and testing of the annunciator
Current Transformers 6
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Ratio
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Polarity
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Saturation
Coupling Capacitator Voltage Transformers (CCVT) 7
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Power Factor (Doble)
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Ratio
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Megger
Motor Operated Disconnects (MOD) 8
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Setup, functional and contact resistance
Station Battery & Charger 9
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Discharge Tests
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Impedance Tests
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Specific Gravity, voltage and contact resistance of straps
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Verification of battery charger float and equalize voltages, current limit, output alarms and wiring
Meters 10
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Kwh (money meter), as well as, panel board and transducer testing
Cables 11
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Hipot and/or Megger
Control Panel Wiring 12
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Terminate cables, modify internals to new design
Ground Grid 13
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Three Point fall of potential method and test all stingers
Project Management 14
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On site project management and quality assurance. Providing expertise in correct installation and knowledge of devices.
In compliance with PRC - 005 NERC reliability requirements
Sentinel Electric Inc. provides testing and commissioning services to utilities for their protection and control projects. On a typical project (apparatus change out or relay protection upgrade), Sentinel Electric Inc. will dedicate a Commissioning Engineer to prepare, oversee, test and install those components and systems. Our Commissioning Engineers are experienced in commissioning of greenfield projects as well as modifications. Some of the Commissioning Engineer’s responsibilities are to review the design drawings, develop and execute test plans provide technical direction to the protective relay engineer, equipment specialist and control board wiremen, and perform final in-service checks when bringing the equipment online for the first time. To learn more about our substation testing, contact us today.
Electrical Substation Testing