Pre-energization inspection and testing of newly installed switchgear, transformers, breakers, cable, and protection systems to ANSI/NETA Acceptance Testing Specifications — confirming everything was installed correctly and performs to spec before energization.

Clients General Contractors, Facility Owners, and Utilities commissioning new or upgraded installations.

Results Independent verification that new equipment is safe and ready to energize, with clean, defensible documentation.

Scheduled inspection, cleaning, and electrical testing of in-service equipment, plus recurring preventive-maintenance programs that find developing problems before they become failures.

Clients Plants, Campuses, Data Centers, and Utilities maintaining existing systems.

Results Fewer unplanned outages, longer asset life, and a documented maintenance record for insurers and AHJs.

Field engineering, testing, switching, and energization of utility substations and switchyards — new builds, rebuilds, ring-bus and breaker-and-a-half configurations, control-house integration, outage sequencing, and startup coordination.

Clients Electric Utilities, Transmission and Distribution Owners.

Results One of the only testing firms to self-perform heavy substation startup; the Meridian founders have supported utility substation construction with technical oversight, protection and control support, and commissioning services for substations up to 500 kV for utilities.

Calibration, testing, and commissioning of protective relays — electromechanical through the latest microprocessor platforms (SEL, GE, ABB, Siemens) — including relay upgrades and retrofits, custom relay panels, wiring/circuit verification, logic validation, and satellite-synchronized end-to-end line protection testing (POTT, DCB, DTT, 87L; fiber and carrier).

Clients Utilities and Industrial Facilities with protective relaying.

Results Correct, coordinated protection that trips and holds when it should — verified end to end.

Diagnostic and field testing of the equipment that runs the system: circuit breakers (LV/MV/HV — vacuum and air), oil and dry-type transformers, switchgear, switchboards and MCCs, cable, instrument transformers, grounding, and DC/battery systems.

Clients Owners and contractors with electrical apparatus to verify or troubleshoot.

Results One crew that can test the entire lineup to NETA standards and provide clear, trusted results.

Equipment we test:

• Circuit breakers — timing/travel, contact resistance, primary & secondary injection, power-factor, vacuum-bottle integrity

• Transformers — turns ratio (TTR), winding resistance, power-factor/excitation, SFRA, insulation resistance, dielectric-fluid sampling & analysis

• Switchgear, switchboards & motor control centers (MCCs)

• Cable — DC hipot, VLF, tan-delta diagnostics, and fault location

• Current & potential transformers (CT/PT) and circuit verification

• Grounding-system testing

• Battery & DC systems — cell impedance, specific gravity, discharge testing

• Motor & generator testing