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.

Transformers

Trust the core of your power system.
We provide full inspection, oil sampling, and thermal imaging on dry-type, oil-filled, and control transformers. Our services detect early signs of degradation to prevent failure and extend transformer life.

Circuit Breakers

Critical protection demands critical care.
We test and maintain air, vacuum, oil, and SF6 breakers with precision. From trip verification to contact resistance and timing analysis, we help ensure your breakers are always ready to act.

Switchgear

Keep your backbone system safe and efficient.
Our comprehensive switchgear service includes internal cleaning, insulation resistance testing, thermal scanning, and mechanical operation verification—essential for uptime and safety.

Current, Voltage, and Control Power Transformers

Precision inputs start with accurate measurements.
We test CTs, VTs, and CPTs for ratio accuracy, polarity, burden capacity, and insulation resistance to ensure reliable signal input and control.

Automatic Transfer Switches (ATS)

When the power goes out, depend on your backup.
We provide full ATS commissioning and sequence testing, verifying smooth load transitions and reliable performance under real-world conditions.

Cables & Busway Systems

From connection points to cable runs, we cover it all.
We conduct HiPot and Megger testing, termination evaluations, and visual inspections of cable and busway systems to verify insulation integrity and detect early faults.

Contact Us

3650 Buckner St, El Paso, TX 79925

(915) 217 – 2200

AlexSanchez@ElectricSupplySource.com