5kVA Single Phase Pole-Mounted Transformer 24940Y/14400V to 120/240V UL Listed

1. Winley Electric pole-mounted distribution transformers are UL and cUL Listed under File No. E543292, with ratings from 10 kVA through 500 kVA. They are built to meet or exceed applicable requirements of ANSI/IEEE, CSA, DOE 2016, and IEC 60076 standards.
2. Winley Electric pole-mounted transformers can be flexibly customized to meet project requirements. Customer-specified accessory brands, such as Eaton Cooper Power series and Qualitrol, can also be provided upon request.
3. Winley Electric transformers are supplied to global markets, including North America, South America, and Southeast Asia. Backed by decades of industry experience, we deliver safe, reliable, and efficient transformer designs with comprehensive technical support.

Engineered for North American overhead distribution, this 5kVA single-phase pole-mounted transformer steps down 24.94kV grounded-wye lines (14.4kV phase-to-neutral) to two independent 120/240V split-phase outputs.

Built with all-copper windings, 125kV BIL insulation, and standard mineral oil cooling (ONAN), this unit delivers exceptionally reliable performance for rural drops, agricultural facilities, and remote infrastructure. Its unique dual-secondary design allows utilities and operators to power two separate low-voltage circuit groups from a single pole location—saving equipment cost and pole space while ensuring standard-compliant isolation.

   

   

• Two Porcelain High-Voltage Bushings — High-grade porcelain bushings designed for reliable 14.4kV phase-to-neutral connection on overhead feeders.
• Six Low-Voltage Bushings with NEMA 4-Hole Spades — Separate X1-X2-X3 and Y1-Y2-Y3 terminal groups with tin-plated spades for multiple cable connections.
• External Five-Position No-Load Tap Changer — De-energized adjustment (±2 × 2.5%) for quick field voltage tuning without opening the tank.
• Copper Neutral Grounding Strap — Factory-bonded neutral-to-tank strap and dedicated ground connector ensure solid earth grounding.
• Tank Grounding Terminal — Provides a dedicated connection for solid grounding of the transformer tank.
• Pressure Relief Valve — Automatic pressure relief for operational safety and clear internal oil indicators for quick inspection.
• Drain Valve — Provides an access point for draining or sampling the insulating liquid.
• Lightning-Arrester Mounting Provisions — Allow arresters to be mounted close to the primary terminals where required.
• Double Pole-Mounting Hanger Brackets — Secure the transformer to the utility pole structure.
• Lifting Lugs — Provide defined lifting points for handling and installation.
• Stainless Steel Riveted Nameplate — Displays the electrical ratings, tap positions, terminal diagram and unit identification.

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.