Xiamen Winley Electric Co.,Ltd
| Type | Substation Power Transformer, Conservator Type |
| Payment Terms | T/T |
| Packaging Details | Plywood case |
| Supply Ability | 300set/month |
| Phase | Three Phase |
| Capacity | 34 MVA (34000 KVA) |
| Cooling Class | KNAN/KNAF; Self-Cooled/Fan-Cooled |
| Tank Material | 304 Stainless Steel |
| Primary Voltage | 11000V |
| Delivery Time | 60days |
| Efficiency Standard(s) | Meets ANSI/IEEE Standards |
| Secondary Voltage | 11000Y/6351 |
| Certification | UL/cUL, ISO |
| Brand Name | WINLEY |
| Place of Origin | CHINA |
| Model Number | S-34000/11 |
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Product Specification
| Type | Substation Power Transformer, Conservator Type | Payment Terms | T/T |
| Packaging Details | Plywood case | Supply Ability | 300set/month |
| Phase | Three Phase | Capacity | 34 MVA (34000 KVA) |
| Cooling Class | KNAN/KNAF; Self-Cooled/Fan-Cooled | Tank Material | 304 Stainless Steel |
| Primary Voltage | 11000V | Delivery Time | 60days |
| Efficiency Standard(s) | Meets ANSI/IEEE Standards | Secondary Voltage | 11000Y/6351 |
| Certification | UL/cUL, ISO | Brand Name | WINLEY |
| Place of Origin | CHINA | Model Number | S-34000/11 |
| High Light | 34MVA substation transformer 11KV stainless steel ，11KV power transformer NEMA 4X tank ，ANSI IEEE standard substation transformer 34MVA | ||
34MVA Electrical Substation Transformer 11KV Isolation Transformer 304 SS NEMA 4X Tank ANSI IEEE Standards
This 34 MVA three-phase substation transformer is engineered for modern power infrastructure where high-capacity, corrosion resistance, and reliable delivery timelines are critical. Designed with a 11000V delta primary and 11000Y/6351 grounded wye secondary, it provides stable step-down performance for utility and industrial systems.
Driven by increasing demand from grid expansion, renewable energy integration, and industrial electrification, utilities and EPC contractors are seeking transformers that combine high load capability, environmental durability, and compliance with North American standards. This unit addresses those needs with fan-assisted capacity up to 34 MVA, ANSI/IEEE compliance, and a full 304 stainless steel NEMA 4X enclosure, making it ideal for harsh outdoor environments, coastal regions, and critical infrastructure projects.
Transformer Manufacturing Process
NEMA 4X 304 Stainless Steel Oil Tank
Coil Winding
Final Assembly
Product Photos
Main data
| Transformer Type | Substation Power Transformer, Conservator Type |
| Phase | Three Phase |
| Capacity (w/o Fans) | 26 MVA (26000 KVA) |
| Capacity (w/ Fans) | 34 MVA (34000 KVA) |
| Vector Group | Dyn1 |
| Primary Voltage | 11000V |
| Primary Phasor | Delta |
| Primary BIL | 95 KV |
| Secondary Voltage | 11000Y/6351 |
| Secondary BIL | 95 KV |
| Frequency | 50 Hz |
| Temperature Rise | 55/65°C |
| Cooling Class | KNAN/KNAF; Self-Cooled/Fan-Cooled |
| Impedance (Typical) | 5.75%, In Accordance with IEEE C57.12.10 |
| Efficiency Standard(s) | Meets ANSI/IEEE Standards |
| Winding Material | Copper |
| Tank Material | 304 Stainless Steel, Undercoated with a heavy rubberized protective sealing material (0.8 mm thick) |
| Dimensions* | 196W x 149D x 169H |
| Dry Weight (w/o Oil)* | 72648 LBS |
| Total Weight (Liquid Filled)* | 96620 LBS |
| Off-Load Loss (in watts) | 21800W |
| On-Load Loss (in watts) | 120890W |
Drawing
Standard Features
High-Capacity Performance – 34 MVA with Forced Air Cooling
Supports continuous operation under heavy load conditions, with KNAN/KNAF cooling enabling flexible response to peak demand and system expansion.
304 Stainless Steel Construction – Built for Harsh Environments
Full 304 stainless steel tank, cabinet, and base with heavy-duty anti-corrosion coating:
NEMA 4X Enclosure – Maximum Outdoor Protection
Weatherproof, dust-tight, and corrosion-resistant design, suitable for exposed outdoor installations and extreme climates.
Eco-Friendly Natural Ester Insulation Fluid
Biodegradable, non-PCB fluid with high fire point
Improved fire safety and environmental compliance
Preferred for urban, industrial, and renewable energy projects
Advanced Monitoring & Protection System
Equipped with full protection and monitoring devices:
Liquid level, temperature, and pressure indicators with remote alarm contacts
Buchholz relay for internal fault detection
Pressure relief valve and auxiliary control panel
Ensures real-time condition monitoring and operational safety
PRODUCT SPECIFICATION
| Substation Transformer Specification | |||||
| kVA | HV | LV | Width(mm) | Length(mm) | Height(mm) |
| 315kVA | 11000V | 400V | 800 | 696 | 1336 |
| 500kVA | 27600V | 480GrdY/277V | 1730 | 2300 | 1510 |
| 500kVA | 11000V | 415V | 1700 | 1700 | 1650 |
| 750kVA | 11000V | 433V | 1850 | 1845 | 1465 |
| 1000kVA | 14400V | 415/240V | 1085 | 1860 | 1570 |
| 1200kVA | 13800V | 240V | 2450 | 1850 | 1820 |
| 1500kVA | 24940V | 600V | 1800 | 1880 | 1895 |
| 2000kVA | 7200V | 600GrdY/346 | 1766 | 2680 | 1982 |
| 2000kVA | 44000V | 600V | 1260 | 2090 | 1700 |
| 2500kVA | 24940V | 480GrdY/277V | 2400 | 2200 | 2060 |
| 3000kVA | 11000V | 415V | 1600 | 2330 | 1920 |
| 3000kVA | 22800V | 415/240V | 2130 | 3500 | 1910 |
| 3750kVA | 44000V | 600V | 2240 | 2650 | 2700 |
| 4000kVA | 33kV | 600Y/347 | 2150 | 3250 | 2290 |
| 5000kVA | 34500V | 7200V | 3780 | 1850 | 3450 |
| 5000kVA | 34500V | 4160V | 2799 | 2400 | 2938 |
| 6300kVA | 35000V | 400V | 3520 | 2820 | 3470 |
| 6800kVA | 34500V | 800V | 3400 | 2670 | 3400 |
| 7500kVA | 27600Y | 4160V | 3350 | 3290 | 2270 |
Applications
Ratings
FAQ
1. Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
2. Q: What is the lead time?
A: Mass production time 15-25 days.
3. 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.
4. 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:
a. Customized color and special function.
b. Customized box.
c. Print customer's logo.
d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.
5. 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.
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2007
Total Annual:
$45M-$60M
Employee Number:
150~210
Ecer Certification：
Verified Supplier
R&D and production capabilities Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions according to... R&D and production capabilities Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions according to...
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