1000 kVA 13.8 kV Distribution Transformer Features
This 1000 kVA three phase oil immersed distribution transformer, designed for stepping down from 13.8 kV Delta to 208Y/120 V, is ideal for commercial and industrial applications across North and South America, including the U.S., Canada, Mexico, Brazil, and Argentina. Engineered with high-efficiency silicon steel cores, copper windings, and mineral oil insulation, it ensures excellent thermal performance and energy efficiency. Built to meet UL, CSA, and DOE standards, this transformer is perfect for outdoor substations, solar power integration, and grid modernization projects. Manufactured in China with OEM/ODM customization options and fast delivery from a reliable factory.
1000 kVA 13.8 kV Distribution Transformer Technical Specs
| No. | Item | Specification | Remark |
|---|---|---|---|
| 1 | Power Rating | 1000 kVA | Common range: 500 kVA – 2500 kVA oil-immersed distribution transformers |
| 2 | Primary Voltage | 13.8 kV (Delta connection) | Typical range: 4.16 kV, 7.2 kV, 13.2 kV, 13.8 kV, 15 kV, 24.9 kV |
| 3 | Secondary Voltage | 208Y/120 V | Also available: 240/120V, 480Y/277V, 600V for North/South America |
| 4 | Phase | Three-phase | Three-phase 60 Hz systems for utilities and commercial sites |
| 5 | Cooling Type | ONAN (Oil Natural Air Natural) | Standard cooling for pad-mounted or pole-mounted oil transformers |
| 6 | Core Material | High-efficiency silicon steel | CRGO core to reduce no-load losses |
| 7 | Insulation | Mineral oil | Meets IEEE/ASTM oil specifications for thermal insulation |
| 8 | Temperature Rise | 65°C | Also available: 55°C for high-efficiency applications |
| 9 | Enclosure | Outdoor type, weatherproof, tamper-resistant | NEMA 3R / pad-mounted enclosures optional |
| 10 | Standards Compliance | ANSI C57, IEEE, UL, CSA | Conforms to DOE 2016 and Canadian CSA-C88 standards |
| 11 | Certifications | UL, cUL, CSA, DOE, CE, SGS | Globally recognized for quality and safety compliance |
| 12 | Connection Type | Delta – Grounded Wye (Standard) | Optional: Wye-Wye, Delta-Delta, Wye-Delta |
| 13 | Applications | Commercial buildings, utilities, schools, hospitals | Suitable for industrial parks, residential neighborhoods, substations |
| 14 | Protection Features | Pressure relief valve, oil level indicator, thermometer | Optional: Buchholz relay, surge arrester, drain valve |
| 15 | Dimensions & Weight | Customizable | Size varies from ~1.5 to 2.5 tons based on capacity and design |
| 16 | Efficiency | High-efficiency design per DOE 2016 | Helps reduce energy bills and carbon footprint |
| 17 | Transport & Installation | Lifting lugs, skid base, galvanized fittings | Designed for forklift, crane, or trailer-mounted installation |
| 18 | Ambient Temperature Range | -30°C to +50°C | Optional: Cold climate design up to -45°C |
| 19 | Total Losses (at Rated Load) | ~1.5% | Low-loss design improves long-term efficiency |
| 20 | No-Load Loss | ≤ 0.35% of rated power | Reduces standby power consumption during idle periods |
| 21 | Load Loss | ≤ 1.2% of rated power | Optimized for full-load operation |
| 22 | Impedance Voltage | 5.75% | Range: 5% to 7.5% based on kVA rating and design |
| 23 | Short-Circuit Withstand | 25 kA for 2 seconds | High mechanical strength for fault conditions |
| 24 | Insulation Class | Class A (105°C) | Other classes available on request (B, F) |
| 25 | Winding Material | Copper (Standard) / Aluminum (Optional) | Copper preferred for higher efficiency and durability |
| 26 | Tap Changer | ±2 x 2.5% Off-Circuit Tap Changer (OCTC) | Optional: On-Load Tap Changer (OLTC) for voltage regulation |
| 27 | Bushing Type | ANSI porcelain bushings | Optional: Polymeric bushings for harsh environments |
| 28 | Cooling Oil Volume | ~500 Liters | Depends on size, enclosure, and cooling design |
| 29 | Design Life | 25 – 30 years | Suitable for long-term grid operation with minimal maintenance |
| 30 | Noise Level | ≤ 60 dB at 1 meter | Designed for urban and commercial areas with noise restrictions |
| 31 | Warranty | 2 – 3 years standard | Extended warranty available upon request |
| 32 | Delivery Time | 30 – 45 days (standard orders) | Rapid production and export from China |
| 33 | Lead Time for Custom Orders | 60 – 75 days | Shorter than industry average for custom designs |
| 34 | Price Range | Contact for a detailed quote | Depends on design, copper content, bushings, certifications, etc. |
| 35 | Origin | Made in China by Energy Transformer / Evernew Transformer | Direct factory supply with CE, UL, CSA, CUL certifications |
Drawings of 1000 kVA 13.8 kV Distribution Transformer with Additional Component
FAQ about 1000 kVA 13.8 kV Three Phase Oil Immersed Distribution Transformer
This transformer features:
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Primary Voltage: 13.8 kV
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Secondary Voltage: 208Y/120 V
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Frequency: 60 Hz
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Cooling Method: ONAN (Oil Natural Air Natural)
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Phase: Three-phase
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Certifications: UL, cUL, CSA, GOST
It offers stable performance, low noise, and safe operation for long-term use in harsh environments.
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Length: ~2200 mm
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Width: ~1500 mm
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Height: ~1800 mm
These standard dimensions ensure ease of transportation and installation in pad-mounted or skid-mounted configurations.
This transformer is designed with a compact footprint suitable for tight installations while still offering high-capacity output for mission-critical applications.
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Total Weight (with oil): 2800 – 3200 kg
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Built with a heavy-duty tank and strong lifting lugs, this unit ensures mechanical stability and long service life.
Copper Windings (optional): 300 – 400 kg
Pure copper ensures excellent electrical conductivity, low losses, and high thermal endurance under full load.
Oil Volume: 500 – 600 liters
This transformer uses high-grade mineral or synthetic insulating oil to improve cooling, insulation, and arc suppression.
Typical Impedance: 5% – 6.5%
Optimized impedance reduces fault currents and supports safe short-circuit protection coordination.
This unit is rated for 1000 kVA continuous power output, capable of handling heavy load cycles, voltage drops, and surge conditions in demanding distribution networks.
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Primary Current (13.8 kV): ~41.8 A
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Secondary Current (208Y/120 V): ~2778 A
The full-load current helps users determine appropriate conductor sizes, breakers, and grounding systems.
To support electrical system design, this transformer outputs approximately 2778 amps at 208 volts (three-phase), making it suitable for large-scale facilities requiring stable voltage transformation.
The nameplate includes:
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Voltage ratings, phase, frequency, kVA
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Impedance, connection type, cooling class
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Manufacturer serial number, standards compliance
This ensures proper identification, installation, and safety inspection.
We supply 1000 kVA distribution transformers with fast delivery and global shipping to the United States, Canada, Mexico, Brazil, Chile, Peru, Colombia, Argentina, and other regions.
Services include:
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OEM/ODM customization
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Custom tap changer options
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Fast production & export packaging
Estimated Price Range: USD $9,000 – $14,000 FOB
Prices vary depending on material (copper or aluminum), accessories, voltage class, and destination port. Contact us for a detailed quote with specification sheet.
Why Choose the 1000 kVA 13.8 kV to 208Y/120 V Three Phase Oil Immersed Distribution Transformer?
Energy Transformer’s 1000 kVA Oil-Immersed Distribution Transformer offers a highly reliable and efficient solution for stepping down medium voltage (13.8 kV) to low voltage (208Y/120 V) in commercial, industrial, utility, and institutional networks. With a rugged design and robust insulation, this transformer ensures long-term performance with minimal maintenance.
Engineered for North America, South America, and global markets, and fully compliant with UL, cUL, CSA, GOST, and CE standards, it’s ideal for use in regions such as the U.S., Canada, Mexico, Brazil, Chile, Colombia, Peru, Saudi Arabia, and Southeast Asia.
🔋 Key Benefits
✅ Proven 1000 kVA Load Handling
Designed to deliver consistent, high-capacity power output for large-scale commercial buildings, manufacturing facilities, shopping centers, and utility substations.
✅ Reliable Oil-Immersed Cooling (ONAN)
Utilizes high-quality transformer oil for natural convection cooling, extending service life while reducing internal temperature and component stress.
✅ Safe & Secure Voltage Conversion
Smoothly steps down 13.8 kV to 208Y/120 V, making it a dependable part of your power distribution system, especially for 60 Hz low-voltage operations in North America.
✅ Long-Life Design with Low Maintenance
Constructed with top-grade copper or aluminum windings, precision-engineered cores, and a hermetically sealed tank to minimize oxidation, moisture, and corrosion risks.
✅ Cost-Effective & Efficient Power Delivery
Delivers low no-load and load losses in accordance with DOE efficiency standards, helping reduce utility costs over the transformer’s lifecycle.
✅ Quiet Operation, Strong Performance
Designed to operate with low noise and vibration, suitable for placement near office buildings, campuses, hospitals, and residential areas.
✅ Customizable for Your Application
Offers flexibility with optional tap changers, surge protection, temperature monitoring, and enclosure types (pad-mount, pole-mount, or skid-mount).
✅ Global Certification Ready
Complies with UL, cUL, CSA (North America), GOST (Russia/CIS), CE (Europe), and ANSI/IEEE standards, ensuring fast regulatory approval and seamless integration worldwide.
✅ Fast Production & Global Delivery
Manufactured in our advanced facilities with large-scale capacity to ensure rapid lead times and global shipping logistics for urgent project demands.
✅ Factory-Direct Pricing Advantage
Save costs through direct procurement from Energy Transformer—a trusted OEM manufacturer offering consistent quality and competitive pricing.
Whether you’re powering a new commercial facility, retrofitting an industrial plant, or expanding a municipal utility grid, the 1000 kVA 13.8 kV to 208Y/120 V Oil-Immersed Transformer from Energy Transformer delivers the performance, safety, and value your project demands.
📩 Contact us today to get a custom quote or technical support for your next power solution.
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