Products
High-Voltage Substation Transformers
High-voltage liquid-filled substation transformers designed to deliver reliable, utility-scale distribution for major industrial facilities.
High-Voltage Substation Transformers Engineered to Your Exact Requirements
Giga Energy high-voltage substation transformers are carefully engineered to meet all NEMA®, ANSI®, IEEE®, and DOE standards for utility-scale applications.
Voltage range: 69 kV – 138 kV
Transformer capacity: up to 100 MVA
Up to 138 kV
Ratings up to 100 MVA
Engineered in America. Built at Scale.
Giga combines high-quality American engineering with global manufacturing capacity to deliver utility-grade substations at best-in-industry lead times.
Fast lead times
Our made-to-order high-voltage substations deliver in a fraction of the time you're used to from legacy suppliers, all without sacrificing quality.
Design conformance
Rigorous engineering oversight and comprehensive testing protocols ensure every high-voltage substation we deliver meets your exact specifications and performance requirements.
Comprehensive warranty
Comprehensive warranty coverage on materials and workmanship, backed by Giga Energy’s responsive, boots-on-the-ground technical support.
Competitive pricing
Our vertical integration structure eliminates markup layers between manufacturer and customer. You receive utility-grade transformers at competitive pricing without sacrificing quality or service.
Exceptional quality
Strict quality control at every production stage ensures high-voltage transformers meet or exceed NEMA, ANSI, IEEE, and DOE standards for utility-scale applications.
Dedicated support
You get direct access to our engineering and project teams from initial specification through commissioning and beyond.
Standard Specifications
- Gauges with Alarm Contacts
- External Lockable Gauges, Bayonet Fuses, and Switch
- Liquid Temperature Gauge (Dial-type Thermometer)
- External Drain & Sample Valve
- Liquid Level Gauge
- Pressure Vacuum Gauge
- Pressure Relief Valve
- High Efficiency Ratings (>99%)
- 5-Legged Grain-Oriented Silicon Steel Core
- All Stainless Steel Hardware
- Nitrogen Sampling Port Circular / Disc Winding Design
- Buchholz
- Rapid Pressure Relay
- Copper
Optional Specifications
- Gauges with Alarm Contacts
- Fan Package
- Generator Step-Up
- Skid-Mounted Options
- Extended Cabinet Depth for T-OP connectors (for Smaller Units)
- 5-Legged Grain-Oriented Silicon Steel Core
- FR3
- LTC
- Inert Gas Oil Preservation System
- Fan Package
Choose from in-stock and custom solutions.
Built to Order
Our team works with you to design and manufacture substation transformers that meet your exact custom specifications with lead times as fast as 26 weeks.
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Seamless transformer
Giga makes the experience of sourcing substation transformers as seamless as possible. From initial quote to ongoing support, our expert team is committed to guiding you through every step of the journey with ease.
Build a quote
Place your order
Approve design drawings
Receive order updates
Receive your transformer
Enjoy ongoing support
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Our extensive selection of custom-built solutions and comprehensive inventory ensures that we can provide the ideal equipment to power your projects.
Let’s build what’s next together.
