MGG Transformer Services

ABOUT US

MGG Transformer Services LLC is company dedicated to providing high-quality field services for power transformer systems across utility, industrial, and energy sectors.

Our company specializes in providing comprehensive services for power transformers, with a team of highly skilled transformer technicians and engineers. With over 74 years of combined experience in the power transformer industry.

BOOK A SERVICE

Mission

To provide our clients with reliable transformer solutions through exceptional service, expertise, and quality.

Our Services

Tailored to your needs

Supervision for Erection & Installation

Supervise full assembly of power transformers at site.
On-site lifting, vacuum, oil filling & handling procedures.

Transformer Electrical Testing

Core/Clamps Insulation Resistance.
Winding Insulation Resistance.
Bushings/Windings Power Factor & Capacitance.
Single Phase Excitation Current.
Turns Ratio (TTR).
CT testing.
Bushings C1, C2.
Dewpoint measurement.
Sweep Frequency Response Analysis (SFRA).

Leaks Repair and Oil Top Up

Gasket replacing and sealing.
Welding repair.
Pressure testing verification.

On-site replacement transformer components

Bushings, Current Transformers, Radiators.
Fans, Valves, Gaskets.

Internal inspections/Troubleshooting

Internal inspections.
Fault troubleshooting.
Core grounding repair.
DGA interpretation of gases generated.

Oil sampling

Dissolved Gas Analysis (DGA).
Oil screen (Dielectric Breakdown Voltage)
Moisture Content.
Acidity/Neutralization Number.
Interfacial Tension (IFT).
Power Factor/Dissipation Factor.

BOOK A SERVICE

PRIOR PROJECTS

Internal inspection and
CT replacement and
testing (Colorado)