WORLD CLASS QUALITY TRANSFORMERS
The Niagara Power Transformer Corp. is recognized as a leader in the design and manufacturing of transformers intended to power the widest spectrum of the world’s transformer applications.
Whether it is general purpose requirements for the commercial, industrial, and utility customer to designing for the unique conditions of Antarctica, humid and corrosive offshore oil platforms, high elevation mining operations, or desert solar farms, our “customer designed” transformers provide unparalleled performance, no matter what the application.
Our Transformers
Choose from the list of our featured transformer types below.

Liquid-Filled Power Transformers
- Single-Phase Power Transformer
- Substation Transformers
- On-load Tap Changing Transformers (OLTC)
- Generator Step-Up Transformers (GSU)
- Unit Auxiliary Transformers (UAT)
- Reserve Auxiliary Transformers (RAT)
- Station Service Transformers (SST)
- Unit Substation Transformers
- Auto-Transformers
- Step-Up Transformers
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Rectifier Duty Transformers
- Drive Duty Transformers
- Pulse Rectifier Duty Transformers
- Variable Speed Drive Duty Transformers
- Drive Output Transformers
- Process High Current Duty Transformers
- Extra Heavy-Duty Traction Transformers
- Multiple Phase Shifted Windings Transformers
- Static Frequency Converter Transformers
- High Current Rectification Transformers
- Cyclo-Converter Transformers
- Excitation Transformers
- Static Excitation Transformers
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Grounding Transformers
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Voltage Regulators
Voltage regulators can use a variety of on-load tap changing devices to provide this voltage compensation. Up to 200 MVA of through power.
- Up to 50 MVA base rating
- Up to 138 kV, 650 kV BIL
- 3 phase
- Resistive or reactive on load switch
- Custom tap voltages available
- Auto/manual control
- Local/remote control
- Forward or reverse power (optional)
- Line drop compensation (optional)
- Retrofit of existing equipment (optional)
- High efficiency
- Low sound level

Special Applications
- Any type of Transformers in a Compartmental Type Tamper-Proof Enclosures
- Skid Mount Power Transformer
- Iron Core Reactors
- Marine Offshore Duty Transformers
- Motor Starting Auto-Transformers
- Phase-Shifting Transformers
- Mobile Substation Transformers
- Hazardous Location Transformers
- Furnace (Induction & Arc) Duty Transformers
- Mining Duty Transformers
- Test Transformers
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Industries We Serve
- Aerospace
- Automotive
- Bio Gas Power
- Cement
- Chemical
- Concentrated Solar Power
- Electric Utilities
- Electrochemical
- Electrowinning
- Export
- Geothermal
- Government
- Laboratories
- Marine – Offshore
- Mass Transit
- Military
- Mining
- Nuclear
- Oil and Gas
- Petrochemical Power Generation
- Pulp and Paper
- Refineries
- Renewables
- Specialty
- Steel
- Waste Water
- Wind Energy
OUR TRANSFORMERS, BY THE NUMBERS
From the test floor to the substation yard, we put our expertise to the ultimate test every day.
TEST FLOOR
FAILURE RATE
0.75%
over the last 10 YEARS
FIELD
FAILURE RATE
0.32%
over the last 10 YEARS
Sharp Facility
ISO
9001
80