Three Phase Pad Mounted Transformer with 500KVA to 1000KVA Capacity for 15KV Class Medium Voltage and 480Y277V Low Voltage Output
Three Phase Pad Mounted Transformer 500KVA 750KVA 1000KVA 15KV 480Y277V Oil Filled for Commercial Distribution Product Overview The Three Phase Pad Mounted Transformer is an outdoor oil filled distribution transformer designed for medium voltage power distribution in commercial, industrial, utility, ...
500KVA to 1000KVA Capacity Pad Mounted Transformer
,15KV Class Medium Voltage Distribution Transformer
,480Y277V Low Voltage Output Three Phase Pad Mounted Transformer
The Three Phase Pad Mounted Transformer is an outdoor oil filled distribution transformer designed for medium voltage power distribution in commercial, industrial, utility, renewable energy and infrastructure projects.
Available in 500KVA, 750KVA and 1000KVA ratings, this pad mounted transformer is designed for 15KV class primary distribution systems with 480Y277V low voltage output, with project specific voltage, connection and protection configurations available according to local grid requirements.
The compact ground mounted construction provides a practical solution where underground medium voltage cables are used and where a transformer needs to be installed directly on a concrete pad without a conventional transformer room.
- Commercial buildings and shopping centers
- Industrial plants and manufacturing facilities
- Urban and rural distribution networks
- Solar PV and renewable energy projects
- Battery energy storage projects
- Mining and mineral processing facilities
- Agricultural and irrigation systems
- Hotels, hospitals and large infrastructure
- Utility distribution projects
- EPC electrical distribution projects
Available in 500KVA, 750KVA and 1000KVA, covering different power distribution requirements for commercial buildings, industrial facilities, renewable energy projects and utility applications.
Designed for 15KV class distribution systems, with primary voltage options configurable according to the customer's local grid, project drawings and utility requirements.
The 480Y277V secondary system is suitable for three-phase commercial and industrial power distribution, supporting motors, HVAC systems, pumps, lighting systems and other electrical loads.
The transformer is installed directly on a concrete foundation, reducing the need for a dedicated indoor transformer room and providing a compact solution for outdoor electrical distribution.
Depending on project requirements, the transformer can be configured with radial feed or loop feed, high voltage fuses, load break switch, bushings, grounding terminals, tap changer and other accessories.
| Parameter | Typical Specification |
|---|---|
| Product Type | Three Phase Pad Mounted Transformer |
| Transformer Type | Oil Filled Distribution Transformer |
| Rated Capacity | 500KVA 750KVA 1000KVA |
| Phase | Three Phase |
| Frequency | 60Hz or project specified |
| HV Class | 15KV Class |
| Typical HV Voltage | 12.47KV 13.2KV 13.8KV or project specified |
| LV Voltage | 480Y277V |
| Cooling | ONAN |
| Installation | Outdoor Pad Mounted |
| Insulating Medium | Mineral Oil or optional alternative |
| Winding Material | Copper or Aluminum according to design |
| Tap Changer | De Energized Tap Changer |
| Typical Tap Range | ±2 × 2.5% or project specified |
The transformer uses a high-efficiency magnetic core and carefully designed high and low voltage windings to control no-load losses, load losses, temperature rise and voltage regulation.
The active part is immersed in insulating oil for electrical insulation and heat transfer. The oil circulation and external cooling system help transfer heat from the winding and core to the surrounding environment during continuous operation.
- Lockable cabinet doors
- High voltage compartment
- Low voltage compartment
- Grounding terminals
- Lifting lugs
- Pressure relief device
- Oil level indicator
- Drain and sampling valve
- Nameplate
- Cable termination compartment
- Fuse protection
- Load break switching equipment when required
The transformer can be configured according to the actual project voltage and single line diagram rather than using one fixed configuration. Our engineering team can prepare corresponding technical proposals based on your specific requirements.
The transformer can be configured with an outdoor-rated cabinet, suitable surface treatment, appropriate cooling design and project-specific environmental requirements for challenging conditions including high temperatures, humidity, coastal salt exposure, and dust.
The pad mounted design provides a compact ground-level installation method, reducing the requirement for a conventional indoor transformer room.
The 500KVA, 750KVA and 1000KVA capacity range allows selection of appropriate transformer rating according to calculated load demand, considering connected load, demand factor, motor starting requirements and future expansion.
The listed configuration covers 500KVA, 750KVA and 1000KVA. Other ratings can also be evaluated according to the project load and distribution requirements.
Yes. Primary voltage, secondary voltage, frequency, connection type, BIL, impedance, tap range, protection configuration and enclosure requirements can be specified according to the project.
Yes. 480Y277V is a standard configuration for this type of three-phase pad-mounted distribution transformer. Other secondary voltage options can be evaluated according to the project requirement.
Yes. Both configurations can be considered. Radial feed is suitable for simpler distribution systems, while loop feed can provide greater flexibility for medium voltage distribution networks.
For an accurate quotation, please provide: KVA rating + HV voltage + LV voltage + frequency + connection group + BIL + impedance + tap range + radial or loop feed + protection requirements + installation environment. If available, please also send the single line diagram and technical specification.
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