750 kVA 3-Phase Padmount Transformer
The 750 kVA transformer is commonly specified for mid-sized commercial facilities, industrial operations, and growing AI-driven infrastructure that require stable three-phase power. This capacity provides substantial headroom over 500 kVA systems while remaining compact enough for pad-mounted distribution in space-constrained sites.
Giga supplies three-phase pad-mount transformers engineered for durability, enhanced thermal performance, and full IEEE/NEMA compliance. Whether you are supporting a data center expansion, EV charging deployment, manufacturing line upgrade, or new utility service, this page outlines applications, voltage configurations, and selection considerations so you can move directly into the quoting process.
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Applications and common use cases for a 750 kVA transformer
A 750 kVA transformer is the preferred choice where load demand exceeds small commercial capacity but does not yet require substation-scale infrastructure.
In AI and data center environments, 750 kVA units often support high-density server rooms, cooling systems, and redundant power distribution architectures. When deployed in parallel or as part of a modular strategy, they allow for phased capacity growth without immediately stepping into medium-voltage substation territory.
If you are comparing options across capacities, you can browse transformers by kVA rating to evaluate adjacent sizes.
Primary deployments include:
- Commercial buildings with significant HVAC and elevator loads
- Light-to-mid industrial manufacturing facilities
- AI edge data centers and colocation facilities
- Large retail centers and distribution warehouses
- EV charging hubs and fleet electrification sites
- Healthcare campuses and educational institutions
Sizing and selection considerations 750 kVA
Selecting the right 750 kVA transformer requires a realistic assessment of connected load, load diversity, and expected growth.
If your load study suggests you are near the upper end of this range, you may want to consider a 1000 kVA pad-mount transformer to avoid future constraints. Conversely, for smaller campuses or distributed loads, a 500 kVA pad-mount transformer may be more appropriate.
Our team can review your single-line diagram to help confirm whether 750 kVA provides the correct balance of efficiency, footprint, and expansion flexibility.
This size is typically chosen when:
- Calculated load falls between 550 kVA and 700 kVA, with growth projected.
- Redundancy strategies require multiple medium-sized units rather than a single large substation.
- You need more headroom than a 500 kVA transformer can provide.
- Motor starting currents or AI cooling loads introduce higher inrush requirements.
Common configurations include:
Most 750 kVA transformers for commercial and AI infrastructure are specified with medium-voltage primaries and low-voltage secondaries to support high-capacity distribution.
As part of our broader three-phase pad-mount transformers lineup, these units are designed for safe utility interface and long-term reliability. Custom impedance, BIL ratings, and tap configurations are available to meet utility or project-specific requirements.
Standard configurations include:
- Primary Voltages: Typically 12.47 kV, 13.2 kV, or 13.8 kV.
- Secondary Voltages: Standard 480Y/277V or 208Y/120V.
- Winding Types: Delta or grounded wye configurations to match utility service.
- Construction: Oil-filled, pad-mounted design engineered for outdoor installation.
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Product Details
Specifications
This 750 kVA transformer is a three-phase, oil-filled pad-mount unit designed for commercial, industrial, and AI-driven power distribution. Each unit features a welded steel tank, tamper-resistant cabinet construction, and cooling capacity engineered for continuous full-load operation. The design supports multiple medium-voltage primary options and standard low-voltage secondary configurations to align with modern building and data center requirements.
support
Our technical support team is available by phone and email to assist with sizing, voltage selection, documentation, and coordination with utilities or engineers of record.
free shipping
Giga offers free shipping within the contiguous United States on in-stock transformers, with most orders processed within 1 to 2 business days. International shipping options are available upon request.
warranty
All Giga transformers are backed by a 3-year warranty, providing confidence in long-term performance and build quality.
Manuals and documentation
Complete submittal drawings, user manuals, and specification sheets are available to support engineering review and installation planning.
Technical specifications
This oil-filled, tamper-resistant pad mount transformer is designed for reliable outdoor operation in commercial applications, with a robust welded steel tank, protective bushings, and an externally operated tap changer for voltage adjustment.
Typical characteristics for a 75 kVA pad-mount transformer include:
Final dimensions, weight, and impedance values vary based on voltage configuration and utility requirements.
Availability and lead time guidance
Availability for a 750 kVA transformer depends on primary voltage, secondary voltage, and utility specifications. Standard commercial configurations may offer accelerated lead times, while custom voltage combinations or impedance requirements typically require additional production time.
For accurate pricing and schedule confirmation, request a quote. Our team will promptly review your project details to confirm availability or build timelines.
FAQs
Find answers to frequently asked questions about our site origination and development services.
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What is a 750 kVA transformer used for?
750 kVA transformers are standard for commercial, light industrial, and AI infrastructure environments where three-phase power demand exceeds small commercial capacity. They are frequently deployed in data centers, manufacturing facilities, and large commercial buildings.
How do I know if I need a 750 kVA transformer?
If your calculated load approaches 600 to 700 kVA, a 750 kVA unit provides optimal headroom for growth. We recommend load studies that specifically account for HVAC, motor inrush, and high-density AI cooling loads before final selection.
What voltages are available for a 750 kVA transformer?
Common primary voltages include 12.47 kV, 13.2 kV, and 13.8 kV. Secondary voltages are typically 480Y/277V or 208Y/120V, depending on facility distribution requirements.
Is a 750 kVA transformer suitable for data centers?
Yes. A 750 kVA transformer is well-suited for edge data centers, modular AI deployments, and colocation facilities. It provides sufficient capacity for IT load, cooling infrastructure, and redundancy planning without the footprint of a full substation.
What is the difference between a 500 kVA and 750 kVA transformer?
A 750 kVA transformer offers additional capacity and significantly more expansion headroom compared to a 500 kVA unit. It is the preferred choice when load growth or high-peak cooling demands exceed the limits of a 500 kVA system.
What is the lead time for a 750 kVA pad-mount transformer?
Lead times vary by configuration. While standard voltage combinations often ship faster, custom builds require additional manufacturing time. Request a quote for the most accurate timeline.
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