500 kVA Three-Phase Pad Mounted Transformer
Source factory-direct 500 kVA (0.5 MVA) pad mounted transformers. Available in ready US stock or fully custom voltage configurations.
500 KVA Continuous Power. In Stock & Custom Engineered.
Key apeclicaticns et a glanoe for quick eference and oontident plenning.
500 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 500 kVA Three-Phase Pad-Mounted Transformer provides safe, reliable medium-voltage power distribution for commercial, industrial, data center, and cryptocurrency mining applications. Its compact, weather-resistant outdoor enclosure integrates the transformer and protection components in a secure, tamper-resistant design, making it ideal for space-limited installations.
The unit supports customized primary and secondary voltages, loop-feed or radial-feed configurations, tap changers, load-break switches, and fuse protection. Oil-immersed natural cooling ensures stable operation under continuous loads, while the durable enclosure supports dependable outdoor performance.
With flexible configurations and robust construction, this transformer is well suited for distributed power systems, mining facilities, and other applications requiring efficient, reliable three-phase power delivery.
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:1480mm、D:1300mm、H:1750mm
Internal dimensions
W:1430mm、D:1250mm、H:1700mm
Weight
2700KG
|
Rated Capacity |
500 kVA / 0.5 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 |
5.25% |
Feed Configuration |
Loop Feed |
|
Connection Type |
Dead Front |
Tap Changer |
5-Position Off-Circuit Tap Changer |
|
Tapping Range |
±2 × 2.5% |
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 >>
2 x 500 kVA Pad-Mounted Transformers for Data Center
Dual 500 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 500 kVA
500 kVA (0.5 MVA) Pad-Mounted Transformer for BESS Storage
Liquid-filled 500 kVA transformer supplied for a commercial battery energy storage system (BESS) integration, providing reliable bidirectional grid stepping.
500kVA
12.47 kV
480Y/277V
1000 kVA Pad-Mounted Transformer for Crypto Mining Pod
Rugged 500 kVA pad-mount transformer powering an 400 kW hydro-cooled ASIC mining pod, delivering non-stop 415V power under extreme desert heat.
34.5 kV
415Y/240V
99.4% Efficiency
4 x 500 kVA Pad-Mounted Transformers for Industrial Grid
Four 1000 kVA step-down padmount transformers installed for an advanced manufacturing plant, fully compliant with Hydro-Québec 600V distribution standards.
4 x 500 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 500 kVA three-phase transformer provides approximately 601A at 480V at full load. This value is used when sizing the secondary breaker, switchboard, cables, and other downstream distribution equipment.
Yes. An 800A switchboard is a practical match for a 500 kVA, 480V transformer because the transformer full-load current is approximately 601A. The final breaker setting should be based on the calculated load and protection design.
Yes, it should be checked. Transformer impedance affects available fault current and voltage drop. If the existing switchgear and breakers will remain in service, the replacement transformer impedance should be reviewed before production.
It depends on the electrical design and applicable code, but secondary conductor and downstream equipment protection must always be confirmed before installation. For replacement projects, Apexto recommends reviewing the existing one-line diagram and protection scheme rather than assuming the old configuration can be reused unchanged.
Recommended Capacities
Discover our full lineup of three-phase pad-mounted transformers built for projects of any scale.
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1000KVA
1000 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 |
2550KVA
2550 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 |
