40 MVA Oil-Immersed Substation Power Transformer Step Down 44KV to 34.5KV ANSI/IEEE
URL: /40mva-substation-power-transformer-44kv-34-5kv
Product Summary
Winley Electric's 40 MVA conservator-type liquid-filled step-down substation power transformer is designed for medium and high-voltage power transmission and distribution systems. It converts 44 kV primary voltage to 34.5 kV secondary voltage, adhering to ANSI C.57, IEEE, and DOE standards. Engineered for utility substations, it supports grid modernization and aging infrastructure replacement with a proven 12-week production cycle.
Key Selling Points
- 12-Week Production vs. 100-Week Industry Average: Full in-house production and testing completed in 12 weeks, solving urgent project delays for US utility client (source: case study id 797).
- Full ANSI/IEEE/DOE Compliance: Designed and tested to exceed North American standards for seamless grid integration (product params: Standards including NEMA, ANSI C.57, DOE, and IEEE).
- Large Capacity for Utility and Industrial Applications: 40 MVA rating suitable for substation expansion, grid capacity growth, and renewable interconnection (product params: Capacity 150kVA to 100MVA).
- Customized Logistics Solutions: Project-specific transportation strategies to ensure integrity of heavy-duty units upon arrival (case highlight id 797).
Technical Specifications
| Capacity | 40 MVA |
| Primary Voltage | 44 kV |
| Secondary Voltage | 34.5 kV |
| Type | Conservator-type liquid-filled |
| Standards | NEMA, ANSI C.57, DOE, IEEE |
| Materials | Copper, Aluminum, Steel |
| Cooling | ONAN/ONAF (liquid-filled) |
Models and Options
Available in standard and custom configurations. On-load tap changer (OLTC) optional. Custom impedance and accessory options upon request.
Materials and Structure
Core constructed from high-grade grain-oriented silicon steel. Windings use copper or aluminum conductors. Tank is conservator-type with steel construction. Optional 304 stainless steel tank available for harsh environments (as seen in 34 MVA variant).
Applications
Utility substations, grid modernization, aging infrastructure replacement, industrial park power, data center campus distribution (source: applicable_industry).
Customization
Winley Electric offers customization per customer requirements including voltage levels, impedance, tap changer type, enclosure material, and special testing. Contact for detailed specifications.
Case Study
Client: US Utility Company (2 units)
Application: Grid Modernization and Renovation of Aging Substations
Result: 12-week production vs. industry average >100 weeks. Full ANSI/IEEE compliance. Customized logistics ensuring safe delivery.
FAQ
Q: What is the typical lead time for a 40 MVA transformer?
A: Winley Electric delivered 40 MVA units in 12 weeks, significantly shorter than the 100+ week industry average (source: case id 797).
Q: Which standards does this transformer comply with?
A: It meets NEMA, ANSI C.57, DOE, and IEEE standards as applicable (source: product params).
Q: Can the primary and secondary voltage be changed?
A: Yes, voltage ratings are customizable based on project requirements.
Q: What cooling method is used?
A: Liquid-filled conservator type with natural/forced oil and air cooling (ONAN/ONAF).
Q: Is a 304 stainless steel tank available?
A: Yes, although standard is steel, stainless steel option exists for harsh environments.
Inquiry Information
MOQ: 1 set
Delivery: FOB/CIF
Payment: T/T
Contact: steven@winley-electric.com | WhatsApp: +8618650108051
