The High-Density Power Node
The 3750 kVA Pad Mounted Transformer moves beyond simple distribution; it acts as a compact, ground-level substation. Delivering massive power (approx. 4500 Amps at 480V) in a single enclosure, this unit is engineered for high-density applications like cryptocurrency mining farms, hyperscale data centers, and large-scale solar collection grids.
While standard commercial padmounts are typically sized for strip malls or housing estates, this 3.75 MVA unit is a specialized industrial asset. It utilizes a reinforced "Unit Substation" tank design, providing the necessary internal clearance for higher voltage insulation and the physical volume required to house nearly 1,000 gallons of cooling fluid.
Assembly of heavy copper busbars to handle 4500A low voltage
output.
Engineering Design Advantages
1. Heavy-Duty Unit Substation Structure
The 3750 kVA pad mounted transformer is built with a reinforced tank design to support high-capacity power transfer and enhanced insulation clearance. It is suitable for continuous industrial operation under heavy load conditions.
2. Efficient Thermal Management System
To ensure stable operation at full load, the transformer uses an optimized oil-immersed cooling system. Optional detachable radiator banks improve heat dissipation and allow easier transportation and installation.
3. Integrated Protection System (VFI Option)
For high-capacity systems like this padmounted transformer, protection is critical. The optional Vacuum Fault Interrupter (VFI) provides:
- Fast fault isolation
- Resettable protection (no fuse replacement required)
- Coordinated protection with downstream switchgear
4. Compact Padmount Installation Design
As part of modern padmounts transformer systems, this unit is designed for ground-level installation without requiring a dedicated indoor substation, reducing infrastructure cost and installation complexity.
Technical Data Sheet
|
Technical Parameter |
Specification Data |
|
Rated Power |
3750 kVA (3.75 MVA) |
|
Design Class |
Unit Substation Style |
|
Primary Voltage |
12.47kV / 13.8kV / 34.5kV |
|
Secondary Voltage |
480Y/277V or 415V or 600V |
|
Rated Current (LV) |
~4510 A (at 480V) |
|
Cooling |
ONAN (with Detachable Radiators) |
|
Protection |
VFI (Recommended) or Current Limiting Fuses |
|
Total Weight |
Approx. 8,500 - 10,000 kg |
Typical Application Context
- Bitcoin/Crypto Mining: Feeding 40ft mining containers where high density and compact footprint are mandatory. The 3750 kVA size perfectly matches the load of modern 3MW+ containers.
- Solar Step-Up: Inverters outputting 600V or 800V feed into the LV side, stepping up to 34.5kV for grid connection.
- Industrial Expansion: Providing a "Plug-and-Play" substation for factory expansions without the need to build a fenced outdoor yard.
3750 kVA unit substation transformer providing power for a major
industrial factory expansion.
FAQ
Q: 1. What is a 3750 kVA Pad Mounted Transformer used for?
A: It is used for stepping down medium voltage electricity to low voltage for industrial, commercial, and utility distribution systems.
Q: 2. What is the difference between pad mounted transformer and padmounts?
A: "Pad mounted transformer" is the product type, while "padmounts" is a common industry term referring to ground-mounted distribution transformer systems.
Q: 3. Can this transformer be used for 480V systems?
A: Yes, the standard secondary voltage options include 480Y/277V, making it suitable for North American industrial applications.
Q: 4. What protection system is available?
A: It can be equipped with VFI (Vacuum Fault Interrupter) or traditional current-limiting fuse protection depending on project requirements.
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