Supervision for Erection & Installation
Supervise full assembly of power transformers at site.
On-site lifting, vacuum, oil filling & handling procedures.
MGG TRANSFORMER SERVICES LLC
MGG Transformer Services LLC dedicated to providing high-quality field services for power transformer systems across utilities, data centers, industrial, renewables Oil & Gas 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 experience in the power transformer industry.
Core Services
We provide various kind of
service for you
Supervise full assembly of power transformers at site.
On-site lifting, vacuum, oil filling & handling procedures.
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).
Gasket replacing and sealing.
Welding repair.
Pressure testing verification.
Bushings, Current Transformers, Radiators.
Fans, Valves, Gaskets.
Internal inspections.
Fault troubleshooting.
Core grounding repair.
DGA interpretation of gases generated.
Dissolved Gas Analysis (DGA).
Oil screen (Dielectric Breakdown Voltage, Moisture Content, Acidity/Neutralization Number, Interfacial Tension (IFT), Power Factor/Dissipation Factor.
Internal inspection and CT replacement and testing (Colorado)





Full assembly, vacuum, oil filling and electrical testing (Texas)



Leak repair on OLTC (lowa)


Leaks repair and gaskets replacements (North Carolina)




Weld leak repair and touch up paint (Oklahoma)




Internal inspection, troubleshooting and leads replacement and crimping, vacuum and oil processing (Nebraska)




LTC draining inspection and oil processing (California)




To deliver safe, reliable, and cost-effective transformer service solutions that reduce operation costs, downtime and extend equipment life.
CERTIFICATIONS & COMPLIANCE
- OSHA, Confined Space & LOTO Certified Technicians.
- IEEE Testing Standards compliance.
COVERAGE AREA
Serving clients across USA.