150 kVA Telephone Pole Transformer for Utility Distribution 13.2 kV / 13.8 kV to 120/240 V

150 kVA Telephone Pole Transformer Features

The 150 kVA telephone pole transformer is expertly engineered for efficient utility power distribution with primary voltages of 13.2 kV and 13.8 kV and a secondary output of 120/240 V split-phase grounded neutral. This versatile transformer is widely applied in residential zones, rural electrification, light industrial areas, and agricultural power systems across markets including the United States, Canada, Mexico, Brazil, Argentina, Peru, Bolivia, Panama, and Spain.

Constructed with premium-grade silicon steel cores featuring high magnetic permeability, combined with tightly wound enameled copper coils and mineral insulating oil, the transformer ensures minimal energy loss, superior thermal management, and extended operational durability. Its 65°C temperature rise standard supports demanding load conditions while maintaining high efficiency.

Encased in a robust, corrosion-resistant, and weatherproof tank, this transformer is designed for pole-mounted outdoor installation, guaranteeing reliable operation even under harsh weather and environmental stresses. The device supports split-phase secondary connections and offers tailored voltage configurations to meet specific utility or project requirements.

Fully compliant with international certifications such as ANSI C57.12, IEEE, CSA, UL, cUL, CE, and DOE energy efficiency guidelines, this 150 kVA transformer is ideal for OEM manufacturing, large-scale wholesale procurement, and private labeling. Our factory provides consistent quality control and fast delivery, ensuring seamless export logistics to North and South American regions.

Whether you are a utility provider, electrical distributor, or contractor seeking a dependable voltage conversion solution, this transformer delivers high performance, durability, and cost-effective supply from a leading Chinese manufacturer with extensive export experience.

150 KVA Telephone Pole Transformer Technical Specs

Parameter	Specification	Parameter	Specification
Rated Power	150 kVA	Phase Configuration	Single-phase (split-phase), other options available
Application	Overhead pole-mounted utility distribution	Frequency	60 Hz (Americas standard), 50 Hz optional
Primary Voltage (HV)	7.2 / 7.62 / 13.2 / 13.8 / 14.4 / 22.9 / 24.9 / 33 kV	Secondary Voltage (LV)	120/240 V (North America), 220/127 V / 380/220 V (South America)
Insulation Level	HV: BIL 95 kV / AC 35 kV; LV: AC 5 kV	BIL (Impulse Level)	95 kV HV / 10 kV LV
Cooling Type	ONAN – Oil Natural Air Natural	Cooling Medium	Mineral oil, silicone oil, or natural ester (IEC 60296)
Temperature Rise	65°C (CSA / ANSI standards)	Efficiency	≥ 98.5% at full load
No-load Loss	≤ 250 W (per ANSI / IEC / GOST)	Load Loss (at 75°C)	≤ 7000 W
No-load Current	≤ 2.5%	Impedance Voltage	4% standard; optional 5–6% for fault limitation
Protection Grade	IP00 (optional IP20 / IP23 enclosure)	Sound Level	≤ 55 dB (1m distance)
Mounting Type	Single-pole or double-pole mounting (vertical/horizontal)	Tank Type	Corrugated or galvanized steel tank with anti-corrosion coating
Ambient Temp Range	-40°C to +50°C (≤1000m altitude; optional for high-altitude installations)	Expected Lifespan	Over 25 years in normal operating conditions
Connection Group	Dyn11, Yyn0, Yd11, split-phase (utility-specific customization)	Standards	ANSI C57, CSA C2.1, IEC 60076, GOST 11677, NBR 5356
Vector Group Standard	IEC, ANSI, GOST compliant	Certifications	UL, CE, CSA, GOST, ISO9001, ISO14001
Standard Accessories	Lifting lugs, drain valve, oil level gauge, thermometer, grounding terminals	Optional Accessories	Pressure relief valve, lightning arrester, overload relay
Surface Finish	UV-resistant powder coating / galvanized anti-rust finish	Warranty	24 months standard; extended options available
Installation Accessories	Pole brackets, galvanized plates, terminal connectors	Market Compatibility	USA, Canada, Mexico, Brazil, Argentina, Chile, Colombia, Peru, Bolivia, Panama, Spain, etc.

What Is Inside a Transformer on a Telephone Pole?

Inside a telephone pole transformer, you’ll find a high-permeability silicon steel magnetic core, enameled copper windings (both primary and secondary), and mineral-based insulating oil. These components work together to step down high-voltage electricity (typically 13.2/13.8 kV) from power lines to the safer 120/240 V used in homes and businesses. The oil cools and insulates internal parts, while the sealed tank protects the system from moisture and environmental damage. Quality pole transformers from manufacturers like Energy Transformer are built to meet ANSI, CSA, and UL standards, ensuring reliable performance in harsh outdoor environments.

What Do Telephone Pole Transformers Do?

Telephone pole transformers play a critical role in electric utility distribution by converting high-voltage electricity from overhead transmission lines to lower voltages suitable for residential and commercial use. A 150 kVA transformer, for example, reduces 13.2 or 13.8 kV down to 120/240 V split-phase for North American applications. These units are mounted on utility poles and are essential for powering homes, farms, small factories, and rural infrastructure. As a trusted transformer supplier, we offer pole-mounted units for bulk wholesale and OEM services across the Americas.

How Telephone Pole Transformer Works

A telephone pole transformer operates on the principle of electromagnetic induction. When high-voltage current enters the primary coil, it generates a magnetic field in the steel core. This field induces a lower voltage in the secondary coil, stepping down the power to 120/240 V. The transformer is typically oil-immersed to prevent overheating and ensure insulation. Our 150 kVA models are designed for consistent efficiency, supporting smart grid systems and rural electrification projects in the US, Canada, Mexico, Brazil, Argentina, and beyond.

How Much Does a Telephone Pole Transformer Cost?

The price of a telephone pole transformer depends on power rating, voltage specifications, certifications, materials used, and order volume. For example, a 150 kVA single-phase oil-filled transformer ranges from $1,200 to $3,500 USD, depending on customization, enclosure type, and delivery location. As a Chinese transformer manufacturer with full export support, Energy Transformer offers competitive factory-direct prices and bulk discounts for utility companies, electrical contractors, and distributors in North and South America.

How Much Does a Telephone Pole Transformer Weigh?

A typical 150 kVA oil-immersed telephone pole transformer weighs between 400 kg and 600 kg (880 to 1320 lbs), including the tank, oil, and accessories. The exact weight varies based on the tank material, core type, cooling method, and mounting configuration. Our transformers are designed for pole-top installations with robust structural stability, and we provide full technical data and packaging details to support safe transportation and fast on-site deployment.

Telephone Pole Transformer Parts

Key components of a telephone pole transformer include:

• Magnetic Core (high-grade silicon steel laminations)

• Primary and Secondary Windings (enameled copper)

• Insulating Oil (mineral or natural ester)

• Tank (galvanized steel or corrugated body with protective coating)

• Bushings and Terminals (porcelain or polymer)

• Pressure Relief Valve, Oil Level Gauge, Grounding Terminal
  All transformers are built to ANSI/IEEE and CSA standards for performance and safety. Our factory supports custom parts configurations based on regional grid requirements.

Telephone Pole Transformer Diagram

A telephone pole transformer diagram typically illustrates:

• Primary Side (13.2/13.8 kV) with high-voltage bushings and fuse cutouts

• Secondary Side (120/240 V) with low-voltage bushings

• Magnetic Core and Windings inside the tank

• Cooling System with mineral oil and radiators (for larger units)

• Protective Accessories like lightning arresters, PRDs, and nameplate
  Need a technical drawing? Contact our factory for detailed CAD diagrams and OEM customization options. We provide drawings for electrical contractors and utility bidding projects.

Core-Winding and Enclosure Fabrication of 150 kVA Telephone Pole Transformer

As one of China’s largest transformer manufacturers, Energy Transformer proudly operates a complete industrial chain for 150 kVA telephone pole transformers—from core stacking and coil winding to tank fabrication and final assembly. The core is precision-cut from high-grade silicon steel to ensure minimal losses, while the windings are formed with enameled copper using automated CNC machines for consistent performance and insulation. Our robust galvanized steel enclosures are welded, sandblasted, anti-corrosion treated, and finished with outdoor-grade powder coating. This in-house production capability ensures high quality, fast delivery, and full customization for North and South American utility markets.

Why Choose the 150 kVA Telephone Pole Transformer?

Energy Transformer’s 150 kVA Oil-Filled Pole-Mounted Transformer is built for reliable medium-to-low voltage distribution in overhead power systems across residential zones, industrial parks, remote villages, and grid-edge infrastructure. Designed for 13.2 kV or 13.8 kV input and 120/240 V output, this utility-grade transformer is ideal for utility-scale deployments in the USA, Canada, Mexico, Brazil, Chile, Argentina, Vietnam, and the Philippines.

✅ Dependable Utility Distribution

With its rugged pole-mounted design, the 150 kVA transformer ensures consistent power delivery to multi-building sites, small businesses, rural loads, and substation-fed networks. It’s perfect for expanding grid coverage and modernizing utility infrastructure.

✅ Enhanced Load Capacity

Offering 50% more power than a 100 kVA model, this transformer supports heavier electrical loads, making it ideal for multi-user residential clusters, telecom base stations, pumps, or light industry applications—all within a similar mounting footprint.

✅ Industrial-Grade Construction

Manufactured with low-loss silicon steel cores, enameled copper or aluminum windings, and heavy-duty weatherproof tanks, the unit performs reliably in high-humidity, coastal, or high-altitude environments. Each tank is sealed, painted, and tested for corrosion resistance and pressure integrity.

✅ Flexible Technical Options

Customize your transformer for any project need:

• Primary voltages: 13.2 kV, 13.8 kV, 12.47 kV, 11 kV, or others

• Secondary voltage: 120/240 V split-phase

• Winding options: Copper or aluminum

• Accessories available: Lightning arresters, bushing wells, tank grounding pads, bird guards, fuse links

• Mounting: Single- or double-pole bracket compatibility

✅ Full-Chain Manufacturing & Fast Shipping

We own the entire production chain—from core cutting and coil winding to oil tank welding and electrical testing—enabling rapid turnaround, OEM production, and on-time exports. Perfect for EPC contractors, utility providers, and government electrification projects.

✅ Cost-Effective & Certified

Backed by ISO-certified plants, our 150 kVA pole-top transformers comply with ANSI C57, CSA, IEC, GOST, UL, and CE standards. Get durable transformers at factory-direct pricing—no third-party markup.

✅ Global Compatibility

Trusted by clients across North America, South America, Southeast Asia, and Africa, these transformers are engineered for grid compatibility, solar hybrid systems, off-grid backup, and utility upgrades.

📦 Get a quote, technical datasheet, or customization plan today.
Partner with Energy Transformer—China’s trusted transformer manufacturer—for quality, reliability, and global utility success.