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Dual 120/240V Output 5kVA Single Phase Pole Mounted Transformer for Rural Utility Distribution
| Brand Name: | WINLEY |
| Model Number: | D11-5/24.94/0.24-0.12 |
| MOQ: | 1unit |
| Price: | $1000-$100000 |
| Packaging Details: | Plywood case |
| Payment Terms: | T/T |
- UL and cUL Listed Product Range
Our pole-mounted distribution transformer range from 10kVA to 500kVA is UL and cUL Listed under File No. E543292. Products are designed to meet or exceed applicable ANSI/IEEE, CSA, DOE 2016, and IEC 60076 requirements.
- Flexible Project Customization
Each transformer can be configured around project-specific voltage, capacity, protection, connection, and installation requirements. Customer-specified accessory brands, including Eaton Cooper Power series and Qualitrol, are also available upon request.
- Global Supply and Technical Support
With products supplied across North America, South America, and Southeast Asia, Winley Electric combines decades of transformer experience with responsive technical support. From specification review to final delivery, we provide safe, reliable, and efficient transformer solutions for utility and industrial projects.
This 5kVA single-phase conventional pole-mounted transformer steps a 24940GrdY/14400V grounded-wye distribution supply down to two 120/240V secondary winding sets for low-load overhead service. Built with double hanger brackets, mineral-oil insulation, ONAN cooling, copper windings and a 25kV-class primary, it is suited to rural service points, remote monitoring equipment, lighting circuits and small municipal loads.
The dual split-phase secondary arrangement provides two separate 120/240V winding sets within the transformer’s total 5kVA rating, supporting projects that require flexible low-voltage circuit allocation. A five-position external no-load tap changer provides ±2×2.5% primary adjustment to accommodate feeder voltage conditions.
| Specification | Data | Specification | Data |
|---|---|---|---|
| Product Type | Conventional pole-mounted distribution transformer | Model | D11-5/24.94/0.24-0.12 |
| Rated Capacity | 5kVA | Phase / Frequency | Single phase / 60Hz |
| Primary Voltage | 24940GrdY/14400V | Secondary Voltage | Dual 120/240V |
| Primary Voltage Class | 25kV class | Polarity / Connection Symbol | Subtractive / Ii0 |
| Cooling Method | ONAN, self-cooled | Insulation Class | Class E, 120°C |
| Temperature Rise | 65°C | Tap Adjustment | ±2×2.5%, five positions |
| Specification | Data | Specification | Data |
|---|---|---|---|
| Insulating Liquid | Type II non-PCB mineral oil | Winding Material | Copper |
| Core Material | Cold-rolled grain-oriented steel | Tank Material | Coated steel |
| Ambient Operating Range | -40°C to +40°C | Sound Level | 48dBA |
| Total Liquid-Filled Weight | 440lb | Drain Connection | 1/2in NPT drain port |
| Test Item | Tested Value | Test Item | Tested Value |
|---|---|---|---|
| No-Load Loss | 21.1W | No-Load Current | 0.75% |
| Load Loss at 85°C | 62.1W | Short-Circuit Impedance at 85°C | 2.19% |
- Two ANSI-27/50 HV Porcelain Bushings
Provide live-bushing primary connections for the 25kV-class grounded-wye system.
- Six ANSI-1/315 LV Bushings with 4-Hole Spades
Provide separate X1-X2-X3 and Y1-Y2-Y3 terminal groups and accept copper or aluminum field conductors.
- External Five-Position No-Load Tap Changer
Provides ±2×2.5% primary voltage adjustment through an externally accessible operating handle.
- External Surge Arrester Mounting Provisions
Provide dedicated mounting points for utility-selected surge arresters; arresters are not supplied as part of the conventional configuration.
- Automatic Pressure Relief Valve
Relieves abnormal internal tank pressure to protect the sealed transformer assembly.
- Drain Valve
Supports controlled removal of insulating liquid during inspection or maintenance.
- Copper Grounding Strap and 304 Stainless Steel Grounding Terminal
Provide a defined tank and secondary-neutral grounding path.
- Copper-Wound Core-and-Coil Assembly with Mineral Oil
Supports self-cooled ONAN operation and continuous outdoor distribution service.
- Pole-Mounting Provisions and Lifting Lugs
Support overhead installation, handling and positioning during field erection.
- Gasketed Tank Cover with Stainless Steel Hardware
Uses a sealing gasket, stainless hold-down components and ANSI 70 gray coating for secure outdoor service.
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Rural & Agricultural Distribution Grids
Ideal for stepping down 24.94kV regional distribution lines to supply reliable 120/240V power for farmsteads and pumping stations.
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Overhead Commercial Utility Services
Suitable for utility-owned pole-mounted overhead distribution drops supplying small commercial buildings and workshop units.
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Remote Infrastructure & Lighting Networks
Provides compact single-phase auxiliary power for highway lighting, telecommunications cabinets, and remote monitoring
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Telecommunications and Monitoring Sites
Suitable for remote communication cabinets, SCADA equipment, traffic controls and utility monitoring devices requiring compact pole-mounted power.
| Rated Capacity (kVA) | High Voltage (kV) | No Load Loss (W) | On Load Loss (W) | Height (mm) | Depth (mm) | Width (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 15kVA |
34.5/19.92 13.8/7.96 13.2/7.6 12.47/7.2 or others |
50 | 195 | 840 | 740 | 610 | 294 |
| 25kVA | 80 | 290 | 840 | 740 | 610 | 362 | |
| 37.5kVA | 106 | 360 | 840 | 760 | 610 | 476 | |
| 50kVA | 135 | 500 | 840 | 810 | 610 | 553 | |
| 75kVA | 190 | 650 | 840 | 860 | 610 | 672 | |
| 100kVA | 280 | 1010 | 910 | 1200 | 965 | 714 | |
| 167kVA | 435 | 1530 | 1000 | 1200 | 965 | 913 | |
| 250kVA | 550 | 2230 | 1250 | 1300 | 1430 | 1106 |
A: Winley delivers standard pole-mounted distribution transformers within 30 days after technical approval. We provide a detailed production schedule and real-time manufacturing photos to help track progress.
A: We offer a flexible MOQ of just 1 unit. Complete inquiries are quoted within 1–2 days with 24/7 support, we ensure highly cost-effective and reliable solutions.
A: Yes. We accept OEM and ODM. Winley pole-mounted distribution transformers are available in standard ratings from 15-333 kVA (and maximum capability up to 500kVA), with HV systems up to 34.5 kV. According to customer drawings, we can customize secondary voltage, conventional or CSP design, copper or aluminum windings, low-carbon steel or stainless-steel tanks, tap changers, surge arresters, secondary circuit breakers, meter sockets and custom colors. We also integrate components from brands such as Qualitrol and Eaton Cooper.
A: Yes. Our full range of products are UL/cUL-certified under UL File No. E543292, designed strictly in compliance with ANSI/IEEE, CSA, DOE, NEMA and IEC 60076 to meet grid connection and regulatory standards.
A: We deliver a complete compliance package: approval drawings, datasheets, nameplate drawings, routine test reports, UL/cUL certs, DOE 2016 docs and accessory manuals. We also back your project with lifetime documentation support.
A: Winley ensures quality through 4 annual unannounced UL audits and strict ISO 9001 process management with dedicated QC oversight. Prior to delivery, every unit undergoes comprehensive routine testing, including Winding Resistance, Turns Ratio, Polarity and Phase Relation, and No-Load Loss and Excitation Current tests. We also fully support Factory Acceptance Testing (FAT) and third-party inspections (SGS).
A: 24 months from B/L. During the warranty period, If there are any accessory problems, just provide photos of damaged accessory, then we will provide free service. According to the number of products, we will provide easily damaged accessories for free. We can also provide technical support if you need.
A: Yes. Winley matches existing nameplates, utility specifications, mounting dimensions and protection configurations for replacement projects.
