1000 kVA Three Phase Oil Filled Pad Mounted Distribution Transformer, 13.8 kV to 480Y/277 V

1000 kVA Oil Filled Pad Mounted Distribution Transformer Features

This 1000 kVA three-phase oil-filled pad-mounted distribution transformer is designed with a 13.8 kV Delta-connected primary and a 480Y/277 V grounded Wye secondary, making it highly suitable for utility, commercial, and industrial power distribution applications. The transformer features high-quality silicon steel cores with advanced insulation using mineral oil, ensuring low losses, excellent thermal stability, and a temperature rise limit of 65°C for reliable long-term operation.

Encased in a rugged, tamper-proof NEMA Type 3R enclosure, this unit is engineered for both indoor and outdoor installations, providing superior protection against environmental elements. It complies with ANSI, IEEE, UL, CSA, and DOE standards, guaranteeing safe, efficient voltage step-down performance for North and South American power grids.

Energy Transformer’s 1000 kVA pad-mounted transformer offers robust performance, easy maintenance, and is widely trusted by utilities and industries in markets including the USA, Canada, Mexico, Brazil, Argentina, Peru, Bolivia, Panama, and Spanish-speaking countries. Bulk supply and customization options are available to meet diverse project requirements.

1000 KVA Pad Mounted Transformer Technical Specs

Parameter	Specification	Parameter	Specification
Rated Power	1000 kVA	Frequency	60 Hz
Phase	Three Phase	Cooling Method	ONAN (Oil Natural Air Natural)
Primary Voltage	13.8 kV (Delta-connected)	Secondary Voltage	480Y/277 V (Grounded Wye)
Tap Changer	±2 × 2.5% (On-load or off-load optional)	Temperature Rise	65°C maximum
Sound Level	≤ 60 dB (measured at 1 meter)	Altitude	Up to 1000 m (De-rating required above 1000 m)
Enclosure Type	Pad-Mounted, Tamper-Proof, Dead-Front or Live-Front	Enclosure Material	Heavy-gauge sheet steel, powder-coated finish
Dielectric Fluid	Biodegradable, Non-toxic, Fire-resistant Mineral Oil	Ingress Protection	NEMA 3R Equivalent / ANSI C57.12.34 compliant
Standards Compliance	ANSI C57.12.00, ANSI C57.12.34, IEEE, DOE 2016, CSA	Efficiency	Meets DOE 2016 / CSA C802.1 Efficiency standards
Impedance	~5.75% (±7.5%)	Winding Material	Aluminum or Copper (customizable)
Weight (approx.)	~4,400 kg (depends on configuration)	Dimensions (L×W×H)	Approx. 2000 × 1500 × 1600 mm (customizable)
Ambient Temperature	-40°C to +50°C operating range	Optional Accessories	Bayonet fuses, pressure relief valve, drain valve, thermometer, liquid level gauge, etc.
Typical Parameter Range	Range or Options	Typical Parameter Range	Range or Options
Rated Power	500 kVA – 2500 kVA	Primary Voltage	11 kV, 12 kV, 13.2 kV, 13.8 kV, 15 kV
Secondary Voltage	208Y/120 V, 240Y/120 V, 480Y/277 V, 600Y/347 V	Tap Changer Range	±2 × 2.5%, ±4 × 2.5% (On-load or off-load)
Temperature Rise	55°C, 65°C, 75°C options	Sound Level	≤ 55 dB to ≤ 65 dB depending on design
Cooling Methods	ONAN, ONAF	Enclosure Types	NEMA 3R, NEMA 3S, Stainless Steel
Winding Materials	Copper (standard), Aluminum (optional)	Standards	ANSI, IEEE, UL, CSA, DOE, IEC
Weight Range	2000 kg – 5000 kg	Operating Altitude	Up to 1000 m standard, optional higher altitude

✅ 1000 kVA Pad Mounted Transformer Overview

A 1000 kVA pad mounted transformer is a three-phase oil-filled distribution transformer designed to step down medium voltage (13.8 kV) to low voltage (480Y/277 V) for safe use in residential, commercial, and industrial power systems. These units are housed in weather-resistant, tamper-proof cabinets for outdoor ground-level installation. Whether for utility substations, factories, office buildings, or solar farms, the 1000 kVA pad mount transformer provides dependable and efficient power delivery. It is a popular choice in North America, Latin America, and Europe for energy distribution applications.

✅ 1000 kVA Pad Mounted Transformer Specifications

Standard features include ONAN cooling (Oil Natural Air Natural), biodegradable insulating oil, a temperature rise of 65°C, and an efficiency rating compliant with DOE 2016 and CSA C802.1. The transformer supports ±2×2.5% tap changers (on-load or off-load), and uses high-grade silicon steel cores to reduce losses. Complies with ANSI C57.12.00, ANSI C57.12.34, IEEE, UL, and CSA standards. These oil-immersed units are designed for long service life, high efficiency, and low maintenance.

✅ 1000 kVA Pad Mounted Transformer Amperage

With a secondary voltage of 480Y/277 V, the full-load output current is approximately 1202 amps per phase. The high ampacity of this transformer makes it suitable for facilities with large motor loads, HVAC systems, data centers, or equipment with high power consumption. It’s also ideal for large commercial buildings, distribution centers, and industrial complexes requiring stable voltage and current output.

✅ 1000 kVA Pad Mounted Transformer Dimensions

The standard dimensions of a 1000 kVA oil-filled pad mounted transformer are around 2150 mm (L) × 1650 mm (W) × 1600 mm (H). The compact design supports urban installation or space-restricted areas. Custom transformer sizes and cabinet configurations are also available to meet customer-specific pad design or underground cable routing requirements. This transformer fits within NEMA 3R-rated enclosures to ensure durability and environmental protection.

✅ 1000 kVA Pad Mounted Transformer Weight

The average weight of a 1000 kVA pad mount transformer is approximately 2600 to 3200 kilograms, depending on whether copper or aluminum windings are used and the thickness of the enclosure. Shipping weight influences logistics planning, crane lifting capacity, and foundation reinforcement. Heavier units often correlate with higher thermal capacity and better overload performance.

✅ 1000 kVA Pad Mounted Transformer Cabinet (Box / Enclosure)

The transformer is enclosed in a tamper-resistant, pad-mounted cabinet made from heavy-gauge steel and coated with UV-resistant powder paint. The dead-front or live-front design ensures safety during operation and maintenance. Cabinets are NEMA 3R rated, protecting internal components from rain, snow, dust, and rodents. Available in green, gray, or custom colors, the box is lockable and compatible with underground service and loop feed configurations.

✅ 1000 kVA Pad Mounted Transformer Installation

Installation includes site preparation, pad construction, grounding system, and cable terminations. ENERGY TRANSFORMER provides installation guides, wiring diagrams, and optional field service support. The unit comes factory-tested, oil-filled, and sealed for quick deployment. Compatible with loop feed or radial feed systems, this transformer is plug-and-play ready for utility-scale and commercial-grade projects.

✅ 1000 kVA Pad Mounted Transformer Windings

Available with copper or aluminum windings, ENERGY TRANSFORMER ensures both cost-effectiveness and performance. Copper-wound transformers offer better conductivity and thermal stability, ideal for mission-critical environments. Aluminum windings are lighter and more economical, perfect for budget-sensitive projects. All windings are insulated with thermally upgraded paper and varnish, vacuum-dried, and impregnated for long-term durability.

✅ 1000 kVA Pad Mounted Transformer Efficiency

Our transformers are engineered for maximum energy efficiency, reducing both no-load and load losses. ENERGY TRANSFORMER uses precision-laminated silicon steel cores and optimized winding designs to meet the DOE 2016 energy efficiency standards and CSA C802.1 for Canada. Higher efficiency means lower operating costs, reduced heat generation, and a longer service lifespan.

✅ 1000 kVA Pad Mounted Transformer Certifications

ENERGY TRANSFORMER’s products comply with ANSI, IEEE, CSA, UL, NEMA, IEC, and other global standards. Certified for export to the U.S., Canada, Brazil, Mexico, Colombia, Chile, Argentina, and European countries. Each unit undergoes full routine and type tests, and certification documents can be provided upon request for engineering approval or tender requirements.

✅ 1000 kVA Pad Mounted Transformer Applications

This model is widely used in medium-voltage distribution networks, solar energy systems, commercial power infrastructure, smart grid projects, manufacturing facilities, mining operations, and industrial parks. The compact design and sealed enclosure make it suitable for outdoor applications with exposure to varying weather conditions.

✅ 1000 kVA Pad Mounted Transformer Sizes & Voltage Options

ENERGY TRANSFORMER offers flexible voltage combinations:

• Primary: 13.8 kV, 13.2 kV, 12.47 kV, 11 kV, 15 kV

• Secondary: 480Y/277 V, 208Y/120 V, 240 V Delta, 240/120 V
  Custom tap ranges, winding configurations, and bushing arrangements are available based on utility or project requirements.

✅ 1000 kVA Pad Mounted Transformer For Sale

We stock 1000 kVA three-phase pad-mounted transformers ready for export to North America, Central America, and South America. ENERGY TRANSFORMER offers competitive wholesale prices, fast delivery (30–45 days), and full documentation. Whether you need 1 unit or 100 units, we’re your trusted OEM/ODM supplier for high-voltage distribution transformers.

✅ 1000 kVA Pad Mounted Transformer Price

Typical factory-direct prices for a 1000 kVA pad mount transformer range from $8,800 to $13,500 USD, depending on configuration, copper/aluminum material, and certification requirements. Contact us for a detailed quote, including shipping to ports in Los Angeles, Houston, Vancouver, Montreal, Buenos Aires, Lima, or Panama City.

✅ 1000 kVA Pad Mounted Transformer Manufacturers (USA, China, Global)

Top U.S. brands include Eaton, GE, ABB, and Siemens, but ENERGY TRANSFORMER is one of the leading pad-mounted transformer manufacturers in China, offering UL-listed, CSA-compliant solutions with low MOQs, fast lead times, and full customizability. We partner with clients in the USA, Canada, Mexico, Brazil, Peru, and Colombia for long-term B2B cooperation.

✅ 1000 kVA Pad Mounted Transformer Wholesale Supply

We offer bulk transformer supply solutions for contractors, distributors, and government tenders. ENERGY TRANSFORMER’s production capacity supports OEM branding, full compliance, and port-to-door logistics. You can also order 500 kVA, 750 kVA, 1500 kVA, or 2500 kVA pad mount transformers to cover different load capacities under one supplier.

✅ Related Pad-Mounted Transformer Models

We also manufacture:

• 500 kVA Pad Mounted Transformers (13.2 kV to 480Y/277 V)

• 750 kVA Pad Mounted Transformers (12.47 kV to 208Y/120 V)

• 1500 kVA and 10000 kVA Pad Mount Transformers

• Custom Dry-Type, Cast Resin, or Solar Inverter Transformers

Drawings and Finished Product Warehouse of 1000 kVA Pad-Mounted Transformer