750 kVA Three-Phase Pad Mounted Transformer
Source factory-direct 750 kVA (1.25 MVA) pad mounted transformers for 1.0MW compute sites. Available in ready US stock or fully custom voltage configurations.
Precise 750 KVA Continuous Power. In Stock & Custom Engineered.
Key apeclicaticns et a glanoe for quick eference and oontident plenning.
750 kVA
Loop / Radial
ONAN
60 Hz
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 750 kVA Three-Phase Pad-Mounted Transformer is designed for reliable medium-voltage power distribution in commercial facilities, industrial sites, data centers, and cryptocurrency mining operations. Its compact outdoor enclosure integrates the transformer, switching, and protection components into one secure unit, simplifying installation and reducing the required footprint.
The transformer can be configured with 12.47 kV or 24.94 kV primary voltage and common secondary voltages such as 480Y/277 V or 600Y/347 V. A dead-front loop-feed design, load-break switch, Bay-O-Net and current-limiting fuse protection, and multi-position tap changer can be supplied according to project requirements.
With efficient oil-immersed natural cooling, robust weather-resistant construction, and flexible electrical configurations, the 750 kVA transformer provides a dependable power solution for continuous-duty applications.
Core Advantages
01. High-Efficiency Radiators
Large external radiator panels maximize surface area for natural oil cooling, maintaining stable thermal performance during continuous 24/7 heavy-duty operations.
02. Auxiliary Control Box
Clearly organized terminals and control components simplify field wiring, commissioning, inspection, troubleshooting, and routine maintenance for faster on-site service and support.
03. Integrated Monitoring Panel
Integrated gauges provide clear temperature, pressure, and operating status information, helping technicians identify abnormal conditions quickly during routine transformer inspections and maintenance.
04. Low-Voltage Connection Panel
Clearly marked X0, X1, X2, and X3 terminals simplify low-voltage cable connections, phase identification, installation, inspection, and routine maintenance in the field.
05. High-Voltage Protection
H1, H2, and H3 terminals combine high-voltage connections with protection and voltage adjustment components, supporting safer installation, operation, inspection, and maintenance.
06. High-Dielectric Bushing Layout
Heavy-duty high-voltage bushings deliver superior electrical insulation and generous clearance, paired with a rugged steel tank built for decades of reliable service.
Full Specifications
External dimensions
W:1192mm、D:1255mm、H:1250mm
Internal dimensions
W:1142mm、D:1205mm、H:1200mm
Weight
3083KG
|
Rated Capacity |
750 kVA / 0.75 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 – Grounded Wye |
|
Winding Material |
Aluminum |
Cooling Type |
ONAN |
|
Insulation Fluid |
Mineral Oil |
Temperature Rise |
65°C |
|
Impedance |
5.75% |
Feed Configuration |
Loop Feed |
|
Connection Type |
Dead Front |
Vector Group |
Project-Specific; Dyn1 shown on 34.5kV version |
|
Tap Changer |
5-Position Off-Circuit Tap Changer |
Tapping Range |
±2 × 2.5% |
|
Efficiency |
99.15% / DOE-compliant configuration |
Standards |
IEEE / CSA / DOE |
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.
Procurement
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 >>
750 kVA Pad-Mounted Transformers for Data Center
Dual 1000 kVA three-phase padmount units deployed to support high-density server racks and liquid-to-chip cooling infrastructure for a regional edge compute facility.
13.8 kV
480Y/277V
ONAN 750 kVA
750 kVA (0.75 MVA) Pad-Mounted Transformer for BESS Storage
Liquid-filled 750 kVA transformer supplied for a commercial battery energy storage system (BESS) integration, providing reliable bidirectional grid stepping.
750kVA
12.47 kV
480Y/277V
750 kVA Pad-Mounted Transformer for Crypto Mining Pod
Rugged 750 kVA pad-mount transformer powering hydro-cooled ASIC mining pod, delivering non-stop 415V power under extreme desert heat.
34.5 kV
415Y/240V
99.4% Efficiency
4 x 1000 kVA Pad-Mounted Transformers for Industrial Grid
Four 750 kVA step-down padmount transformers installed for an advanced manufacturing plant, fully compliant with Hydro-Québec 600V distribution standards.
4 x 750 kVA
24.94 kV GrdY
600Y/347V
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
A 750 kVA three-phase transformer provides approximately 902A at 480V at full load. This is the key value for sizing the secondary breaker, switchboard, cables, and busway.
Yes. A 750 kVA transformer produces about 902A at 480V, so a 1200A switchboard is a practical configuration. The final breaker setting and conductor sizing should follow the project load and applicable electrical code.
Often yes, but the dimensions and cable-entry layout must be checked first. Send Apexto the existing nameplate, transformer dimensions, pad opening, and conduit locations so the replacement layout can be verified before production.
Yes, but the existing electrical system must be checked for the higher capacity. The switchboard, breakers, cables, busway, fault-current ratings, concrete pad, and utility service may all need to be reviewed before upgrading.
Recommended Capacities
Discover our full lineup of three-phase pad-mounted transformers built for projects of any scale.
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500KVA
500 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 |
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 |
