75 kVA Single-Phase Pole-Mounted Transformer 24940GrdY/14400V to 120/240V For

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.

This 75 kVA single-phase pole-mounted distribution transformer converts 24940GrdY/14400V primary voltage to 120/240V secondary voltage, built to ANSI C57.12.20 and DOE 2016 standards. Designed with heavy-duty hanger brackets for overhead pole installation, it delivers dependable step-down power distribution for rural grids, residential neighborhoods, and commercial utility networks.

Engineered with 100% copper windings and an ONAN mineral oil immersion system, the unit ensures high thermal endurance and reliable continuous duty under 65°C temperature rise conditions. Equipped with a factory-integrated 24 kV surge arrester and cutout fuse, it protects grid equipment against overvoltage spikes and line faults, significantly reducing maintenance down-time and operational costs for utility power projects.

   

   

• ANSI-35/50 Porcelain High-Voltage Bushing — Provides a cover-mounted live primary connection with a 150 kV BIL rating.
• Three ANSI-1/315 Low-Voltage Bushings — Provides X1, X2 and X3 terminals for 120/240V split-phase service.
• Five-Position Tap Changer — Offers two 2.5% taps above and two below nominal voltage for feeder-voltage adjustment.
• 15TC30K Cutout Fuse Link — Provides primary overcurrent protection matched to the transformer rating.
• 24 kV Station-Class Arrester — Uses a 19.5 kV MCOV rating to protect the high-voltage terminal from surge events.
• Copper Core-and-Coil Assembly — Provides copper current-carrying windings for the 75 kVA transformer design.
• Automatic Pressure-Relief Valve — Releases excess internal tank pressure to support safe operation.
• Tinned Ground Straps and Tank Grounding Provision — Supports secure neutral bonding and equipment grounding.
• Drain Valve — Provides access for insulating-liquid sampling, inspection and servicing.
• Bird Guard — Helps reduce accidental contact by birds around the energized high-voltage connection.
• Coated-Steel Tank and Cover — Uses an ANSI 70 light-gray outdoor finish for weather-exposed pole-mounted service.
• Double Hanger Brackets and Lifting Provisions — Support transformer handling and installation on the utility pole.

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.