Electrical Acceptance, Commissioning & Maintenance Services

Precision Service for Critical Systems

At Electric Supply Source, we help ensure your electrical systems are installed correctly, operate reliably, and stay efficient over time. Whether you’re powering up a new system or maintaining aging infrastructure, our certified team brings the experience and precision needed to keep everything running smoothly.

We offer acceptance testing, commissioning, preventive maintenance, diagnostics, and troubleshooting—all performed by qualified technicians trained in both UL 508A standards and advanced control technologies.

We Service

  • Protective Relays & Power Meters
    Calibration and functional testing to verify protective coordination and metering accuracy.

 

  • Transformers
    Inspection, oil analysis, and thermal imaging for dry-type, oil-filled, and control transformers.

 

  • Circuit Breakers
    Testing and servicing of air, vacuum, oil, and SF6 breakers—trip unit verification, contact resistance checks, and more.

 

  • Switchgear
    Comprehensive inspection, cleaning, insulation resistance testing, thermal scans, and operational verification.

 

  • Current, Voltage, and Control Power Transformers
    Ratio, polarity, and insulation resistance testing to ensure reliable control and protection.

 

  • Automatic Transfer Switches (ATS)
    Full commissioning, sequence testing, and routine maintenance for critical power reliability.

 

  • Cables & Busway Systems
    Megger testing, HiPot testing, terminations, and visual inspections for safe power distribution.

 

  • Control Panels & Logic Systems
    Functional testing, loop checks, and commissioning for new and retrofit automation systems.

 

  • Station Batteries & DC Systems
    Load testing, impedance checks, and backup system evaluations.

 

  • Additional Systems & Custom Projects
    From unique control configurations to legacy system upgrades, contact us to discuss your specific power and automation needs.

Protective Relays & Power Meters

Ensure your system reacts the way it should.
We calibrate and function-test protective relays and meters to verify timing, coordination, and trip accuracy. This guarantees fast and reliable fault isolation while maintaining the integrity of your electrical network.

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Contact Us

3650 Buckner St, El Paso, TX 79925

(915) 217 – 2200

AlexSanchez@ElectricSupplySource.com