Leilang Electric Group CO.,LTD
                                                                                                           
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19 Years
Since 2007
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ISO 60Hz Reconditioned Pad Mount Transformers 34.5kV Utility Transformer

Price Negotiable
Price: $1000-$10000
MOQ: 1unit
Delivery Time: 30days
Brand: Leilang Electric
Product Description
Three Phase Pad Mount Transformer
Durable solution for outdoor electrical distribution systems ensuring power delivery and safety

Product Overview
The three-phase pad-mounted oil-immersed transformer is a US-standard integrated distribution equipment specially designed for overseas power distribution systems in North America, Latin America and other regions. It fully complies with and exceeds international authoritative standards such as ANSI, IEEE, DOE and CSA, integrating the transformer body, switchgear, fuses, tap changers, low-voltage distribution devices and auxiliary equipment, serving as the core solution for medium-voltage power distribution in industrial and commercial, municipal, large residential and other scenarios.
This series of products covers a rated power range of 75kVA to 5500kVA, with a maximum input voltage of up to 34.5kV, perfectly adapting to mainstream North American power distribution systems. It features core advantages of advanced structure, reliable performance, energy saving and consumption reduction, maintenance-free operation, anti-electricity theft and high safety protection level.
Adopting a fully sealed oil-immersed structure and outdoor special cabinet design, it can be directly installed on outdoor ground foundations without additional power distribution rooms, greatly reducing infrastructure costs. It is widely used in industrial and commercial parks, commercial complexes, residential areas, municipal projects, data centers, new energy supporting and other scenarios, making it the preferred equipment for large overseas power distribution projects.
With more than ten years of R&D and production experience in US-standard transformers, we independently master core design and manufacturing processes. Our products are exported to North America in large quantities, with complete capabilities in design, production, export and full-cycle after-sales service, meeting various customized project requirements.

Core Structure and Process Advantages
High-Efficiency Energy-Saving Iron Core System
Made of high-quality cold-rolled grain-oriented silicon steel sheets with a multi-stage step-lapped full-oblique joint lamination process, it significantly reduces magnetic resistance, effectively lowering no-load loss and no-load current, fully complying with DOE energy efficiency standards and delivering remarkable energy-saving effects. The iron core is treated with vacuum impregnation and overall sealing reinforcement, featuring high mechanical strength, low operating noise and strong short-circuit resistance, suitable for all-weather outdoor working conditions and ensuring long-term operational stability.
High-Reliability Winding Design
  • High-Voltage Winding: Adopts a multi-layer cylindrical structure, wound with high-purity oxygen-free copper wire. The interlayer insulation uses high-strength insulating paper, treated with a vacuum impregnation process, ensuring excellent insulation performance, strong resistance to lightning impulse and short circuit, adapting to various complex power grid environments.
  • Low-Voltage Winding: Adopts a foil-wound structure, with tight winding and high concentricity, excellent heat dissipation performance, effectively reducing load loss and improving transformer operating efficiency, ensuring no overheating risk during long-term full-load operation and meeting high-current output requirements.
Integrated Modular Cabinet and Protection Design
  • Adopts a double-compartment/multi-compartment modular design, with complete isolation between the high-voltage side, low-voltage side and transformer body, ensuring safe and convenient operation, supporting ring network/radial wiring to meet different power distribution system requirements.
  • The cabinet is made of NEMA 3R weatherproof and corrosion-resistant steel plate, with high-temperature electrostatic spraying on the surface, featuring extremely strong weather resistance, adapting to extreme environments from -40℃ to +50℃, ensuring long-term stable operation under harsh working conditions such as coastal humidity, wind and sand, heavy rain and ice and snow.
  • Adopts Dead Front design, with all live parts completely enclosed, no exposed live parts on the operation surface, equipped with anti-theft locks and anti-misoperation structure, preventing electricity theft and misoperation, ensuring operation and public safety.
  • Fully sealed oil-immersed structure, with environmentally friendly mineral oil (optional vegetable insulating oil) as the insulating cooling medium, completely isolating air and moisture, preventing oil deterioration and insulation aging, realizing maintenance-free operation under normal conditions and eliminating the risk of oil leakage.
Complete Protection and Operation System
  • Equipped with standard accessories such as pressure relief valves, oil level gauges, thermometers, off-circuit tap changers, high-voltage fuses and low-voltage circuit breakers to comprehensively ensure the safe operation of the transformer.
  • Supports customized configuration, which can integrate intelligent temperature control, online monitoring, fault recording, remote communication and other systems to realize digital operation and maintenance.
  • Flexible and adjustable tap range, which can be accurately adjusted according to on-site voltage requirements to ensure stable output voltage, adapting to various power grid fluctuation scenarios.

Core Technical Specifications (Standard Models)
Rated Power
(KVA)
High Voltage
(KV)
Low Voltage
(V)
No-load Loss
(W)
On-load Loss
(W)
Height
(mm)
Depth
(mm)
Width
(mm)
Weight
(kg)
Weight
(Lbs)
75KVA 34.5KV
4.160KV
12.47KV
13.2KV
13.8KV
24940GrdY/14400
1247Grdy/7200
4160GrdY/2400
or others
277V
347V
480V
600V
120/240V
208GrdY/120
415GrdY/240
480GrdY/277
600Y/347
180 1250 1430 910 1930 645 1422
150KVA 280 2200 1530 980 1510 989 2180
300KVA 480 3650 1680 1080 1660 1415 3119
500KVA 680 5100 1790 1160 1810 1905 4200
750KVA 980 7500 2030 1300 2030 2755 6074
1000KVA 1150 10300 1854 1549 1651 3235 7132
1500KVA 1640 14500 2150 1570 2210 5835 12864
2000KVA 2160 20645 2220 1600 2380 6430 14175
2500KVA 2680 23786 2330 1650 3070 8865 19544
3000KVA 3300 30300 2460 1850 3260 11300 24912
3735KVA 4125 37875 2680 2060 4080 14400 31746
Note: Capacity can be expanded to 5500kVA. Parameters such as voltage, loss, cabinet size and accessory configuration support full-dimensional personalized customization. The default connection symbol meets ANSI standards and can be adjusted as required.

Core Performance Highlights
  1. US-Standard Compliance, Global Adaptability: Fully complies with North American standards such as ANSI, IEEE, DOE and CSA, and passes UL certification, which can be directly adapted to overseas power distribution systems in North America, Latin America and other regions without additional modification, ensuring full compliance.
  2. Ultimate Energy Saving, Cost Reduction & Efficiency Improvement: Low-loss iron core and winding design, with no-load loss and load loss far lower than industry standards, complying with DOE energy efficiency requirements. Long-term operation can significantly reduce electricity costs, helping customers achieve energy conservation and carbon reduction goals.
  3. Safe, Reliable and Maintenance-Free: Fully sealed structure + Dead Front design, no exposed live parts, anti-theft and anti-misoperation, maintenance-free operation, greatly reducing operation and maintenance costs; strong resistance to short circuit and impact, stable operation in extreme environments, with a service life of more than 30 years.
  4. Integrated Design, Easy Installation: Integrated cabinet, no need for additional power distribution rooms, can be directly installed on outdoor ground foundations, saving infrastructure costs and shortening installation cycle, adapting to various scenarios such as industrial and commercial parks and commercial areas.
  5. Customized Service, Fast Delivery: Supports full-dimensional customization of capacity, voltage, cabinet structure, accessory configuration, insulating medium, etc. Independent production of core components, sufficient production capacity, meeting batch delivery requirements of large projects, and providing one-stop export services.
  6. Environmentally Friendly and Durable, Wide Adaptability: Adopts environmentally friendly insulating oil, no harmful emissions, fully sealed structure to eliminate pollution, adapting to various harsh outdoor working conditions, widely covering power distribution requirements in industrial and commercial, municipal, new energy and other scenarios.

Wide Application Scenarios
  • Industrial and Commercial Power Distribution: Factories, industrial parks, commercial complexes, office buildings, data centers, meeting high-load and high-reliability power supply requirements
  • Residential Power Distribution: Large residential areas, villa complexes, apartments, providing stable three-phase power supply for residents
  • Municipal Projects: Hospitals, schools, parks, municipal facilities, transportation hubs, ensuring reliable power supply for public facilities
  • New Energy Supporting: Photovoltaic power stations, energy storage power stations, charging stations, adapting to new energy grid-connected power distribution requirements
  • Rural Power Grid: Rural power distribution, agricultural irrigation, power supply in remote areas, solving long-distance and high-load power distribution problems

Quality Assurance and Service
This series of three-phase pad-mounted transformers is produced in strict accordance with the ISO9001 quality management system. All products have passed the full type test of ANSI/IEEE standards, with 100% independent production of core components, and complete performance tests before delivery to ensure the reliability and stability of each product.
We provide one-stop foreign trade services from selection design, manufacturing, export customs declaration, installation guidance to after-sales operation and maintenance, supporting customized specifications, providing Chinese and English technical documents, certification documents and compliance reports to meet the compliance requirements of overseas projects. After-sales service provides lifelong technical support, spare parts supply and quick-response maintenance services, ensuring stable operation of equipment throughout the entire life cycle.
Three Phase Pad Mount Transformer installation and operation
Three Phase Pad Mount Transformer technical specifications and design
Frequently Asked Questions
Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
Q: What is the lead time?
A: Mass production time 15-25 days.
Q: How long is the warranty?
A: 24 monthes from B/L. If there are any accessory problems, just provide the 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 also can provide technical support if you need.
Q: Is OEM/ODM available?
A: Yes, it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.
Customized services:
- Customized color and special function
- Customized box
- Print customer's logo
- Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.
Q: How to control the products quality?
A: Our company owns the core technology, all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors. The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Leilang Electric Group CO.,LTD
Location No. 2200, Zhude Road, Jiading District, Shanghai, China
Contact Person Alice Qin

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