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Heavy-Duty Power 2750 kVA 3-Phase Pad-Mounted Transformer
Key specifications at a glance for quick reference and confident planning.
Rated Capacity
2750 kVA
Feed Type
Loop / Radial
Cooling Medium
ONAN
Frequency
60 Hz
Installation
Outdoor Pad-Mounted
WAREHOUSE LOCATIONS
USA • Canada • UAE • China • Global Dispatch
FAST DISPATCH
Ready Stock • Ships in 1-3 Days • DDP Door-to-Door
Product Profile
The Apexto 2750 kVA Pad-Mounted Transformer is designed for facilities that want additional reserve capacity above a conventional 2.5 MVA power block. Its 2.75 MVA rating provides more headroom for future equipment, load variation, or expansion without moving immediately to a 3 MVA transformer.
This makes the model especially useful in projects where long-term load growth is already part of the site plan. Voltage ratio, impedance, taps, feed arrangement, and protection can be customized around the intended expansion strategy.
The 2750 kVA transformer therefore serves as an expansion-oriented capacity rather than simply another standard rating, giving project designers more flexibility between 2.5 and 3 MVA.
Core Advantages
01. Dead-Front Dual Compartment
Features a dual-compartment design separating high and low voltage with a rigid steel barrier. Enclosed dead-front bushings ensure maximum touch safety and tamper protection.
02. Multi-Tier Fuse & Switch Bay
Integrates accessible Bay-O-Net fuses with a four-position load-break switch (Source A/B) and a tap changer, ensuring instant fault isolation and safe power transfer.
03. Comprehensive Gauge Suite
Equipped with precision dial thermometer, pressure/vacuum, and oil level gauges alongside an automatic pressure relief valve (PRV) for continuous operational safety.
04. Auxiliary Control Cabinet
Houses neatly organized DIN-rail circuit breakers, terminal blocks, a power supply, and convenience outlet, simplifying secondary control wiring and field testing.
05. High-Conductivity LV Busbars
Fitted with heavy-duty tin-plated NEMA spade terminals (X0–X3) designed for high current capacity, minimizing contact resistance and easing multi-cable connections.
06. C5-M Enclosure & Cooling Fans
Protected by a C5-M marine-grade steel enclosure with large cooling radiator banks and auxiliary forced-air fans, engineered for non-stop duty in harsh environments.
Full Specifications
External dimensions
L:2500mm、W:2000mm、H:2300mm
Internal dimensions
L:2450mm、W:1950mm、H:2350mm
Weight
6000KG
|
Rated Capacity |
2750 kVA / 2.75 MVA |
Phase |
Three Phase |
|
Frequency |
60 Hz |
Primary Voltage |
Customized (Typical 12.47kV / 13.8kV / 24.94kV / 34.5kV) |
|
Secondary Voltage |
Customized (Typical 480Y/277V) |
Winding Configuration |
Delta - Wye / Grounded Wye (Project Specific) |
|
Winding Material |
Copper / Aluminum Available |
Cooling Type |
ONAN |
|
Insulation Fluid |
Mineral Oil |
Temperature Rise |
65°C |
|
Impedance |
Typical 5.75% |
BIL Rating |
According to Voltage Class |
|
Vector Group |
Dyn1 / Customized |
Tap Changer |
Off-Circuit Tap Changer |
|
Standards |
ANSI / IEEE C57 / DOE |
Testing |
Factory Routine Testing |
Engineering Documents
Padmount Spec Sheet
Padmount Dimensional Drawings
Padmount Installation Manual
Padmount Test & Warranty Guide
Certifications & Grid Compliance
Fully compliant with UL, CSA, IEEE/ANSI, DOE, and IEC standards. Tested and certified by international authorities to ensure maximum safety, efficiency, and instant approval by local power utilities.
UL/cUL
CSA
CESI
IEEE
IEC
EN00676
AS-NZS
GOST
Infrastructure Capabilities
We supply a full lineup of pad-mount transformers built for heavy-duty power. From 24/7 crypto mining farms to mission-critical data centers, we deliver reliable equipment designed to run non-stop.
We also offer custom engineering tailored to your exact site. From specific high and low voltages to specialized enclosure specs, we customize and deliver units in as fast as 4–6 weeks to get your project powered up on schedule.
Design
Raw Material
Procurement
Procurement
Assembly
Testing
Packaging
Delivery
Request a Project Quote
Tell us about your project or custom requirements. Our power systems engineers will review your specs and provide a tailored proposal.
Global Project References
View All >>
Reykjavik, Iceland
2550 kVA Pad-Mounted Transformer for Geothermal Data Center
High-efficiency 2750 kVA (2.75 MVA) padmount unit delivered to power a 100% green geothermal compute facility, operating reliably in cold sub-arctic climates.
11 kV Class
415Y/240V
ONAN 2750
Frankfurt, Germany
2750 kVA (2.75 MVA) Transformer for European AI Facility
Three-phase 2750 kVA pad-mounted transformer dispatched via express freight to support an enterprise AI server expansion and high-density liquid cooling loops.
2750 kVA
20 kV Class
400V / 415V
West Texas, USA
4 x 2750 kVA Transformers for Mining Park
Convoys of 2750 kVA padmount transformers dispatched simultaneously to power a utility-scale 40-foot hydro container park under extreme desert heat.
4 x 2750 kVA
34.5 kV Class
415Y/240V
Calgary, Alberta, Canada
3 x 2550 kVA Padmount Units for High-Density Compute
Heavy-duty 2550 kVA step-down transformers installed alongside a massive louvered cooling infrastructure, fully compliant with Canadian 600V/415V grids.
2750 kVA
24.94 kV
600Y / 415V
Capabilities & Support
24-Month Quality Warranty
Enjoy peace of mind with our 24-month full warranty. If any operational issue arises with your transformer, our dedicated engineering team will resolve it rapidly and reliably.
Local Field Service Team
Whether in North America or global regions, our certified local engineering teams provide professional on-site transformer installation, energization testing, and maintenance.
24/7 Remote Video Support
Connect directly with our senior power engineers via live video for real-time installation guidance, system diagnostics, and instant troubleshooting support, anytime and anywhere.
Spare Parts & Support
We maintain an extensive inventory of genuine spare parts for fast dispatch, paired with lifetime technical guidance to maximize your equipment uptime.
Need a Customized Power & Transformer Solution?
Talk to our engineers to get an optimized configuration and fast quote.
FAQs
Can a 2750 kVA transformer run a 2.4 MW hydro mining container?
Yes, if 2.4 MW is the total site load. At a 0.95 power factor, 2.4 MW requires about 2,526 kVA, leaving approximately 224 kVA of transformer capacity. If cooling or auxiliary loads are additional to the 2.4 MW rating, they should be included before final sizing.
Should I use a 2750 kVA or 3000 kVA transformer for a 2.4 MW mining load?
For a fixed 2.4 MW total load with no major expansion planned, 2750 kVA is a practical fit. Choose 3000 kVA when the 2.4 MW figure excludes cooling loads, or when overclocking, additional miners, or near-term expansion is planned.
What size switchgear is typically needed for a 2750 kVA transformer?
At full load, a 2750 kVA transformer delivers approximately 3,308A at 480V and 2,646A at 600V. This generally points to 4000A-class distribution at 480V or 3000–3500A-class distribution at 600V, subject to the final electrical design.
Can I use a single 3200A main breaker with a 2750 kVA transformer at 415V?
Not if you intend to use the transformer’s full capacity. A 2750 kVA transformer delivers approximately 3,827A at 415V. A 3200A main would therefore limit how much of the transformer capacity can actually be used.
Is 5.75% impedance suitable for a 2750 kVA transformer?
5.75% is a common starting point, but it should be checked against the project short-circuit study. At 480V, a 2750 kVA transformer with 5.75% impedance can produce roughly 57.5 kA of transformer-limited fault current, which directly affects switchgear interrupting ratings.
Should I use cables or busway between a 2750 kVA transformer and the main switchgear?
At 3,000A+ secondary currents, both are possible. Short parallel cable runs are common, while busway or close-coupled switchgear can simplify very high-current connections. The decision should be based mainly on distance, available space, installation cost, and required current capacity.
Recommended Capacities
Discover our full lineup of three-phase pad-mounted transformers built for projects of any scale.
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1250KVA
1250 kVA Pad Mount Three-Phase Transformer
|
Primary Voltage |
2.4 kV – 34.5 kV Class |
|
Secondary Voltage |
120 V – 600 V Range |
|
Availability |
USA & China |
1500KVA
1500 kVA Pad Mount Three-Phase Transformer
|
Primary Voltage |
2.4 kV – 34.5 kV Class |
|
Secondary Voltage |
120 V – 600 V Range |
|
Availability |
USA & China |
2000KVA
2000 kVA Pad Mount Three-Phase Transformer
|
Primary Voltage |
2.4 kV – 34.5 kV Class |
|
Secondary Voltage |
120 V – 600 V Range |
|
Availability |
USA & China |
3000KVA
3000 kVA Pad Mount Three-Phase Transformer
|
Primary Voltage |
2.4 kV – 34.5 kV Class |
|
Secondary Voltage |
120 V – 600 V Range |
|
Availability |
USA & China |
