1,000+ Electrical Transformers (7.2–34.5 kV, 25–3000 kVA) — UL Evaluated, Certificate of Compliance Available — In Stock & Ready to Ship from Houston, CA & Florida. Contact Us Today!
Primary Voltage Ratings: 34500Delta
Secondary Voltage Ratings: 415GrdY/240V
H.V. TAP RANGE: +/- 2@ 2.5% LV taps
CONNECTION TYPE: Dyn1
TYPE: Dead Front loop feed HV & LV configuration
BIL: 150/30kV
Standards: IEEE, ANSI, NEMA
Application: Data Center
Power Rating: 2550 kVA/3300kVA
Certificate: UL
Cooling Method: ONAN/ONAF
The 2550 kVA pad-mounted transformer is specifically designed for data centers. It features a UL-listed nameplate and complies with IEEE standards, ensuring efficient, safe, and continuous power supply. Cooling is achieved through ONAN/ONAF methods, providing a rated capacity of 2550 kVA, expandable to 3300 kVA during high-load summer conditions with automatic fan activation.
Daelim Transformer has 2550kVA transformers in stock specifically for data centers, ready for immediate shipment, as follows:
| Model | Primary Voltage | Secondary Voltage | Quantity |
| ZGSL-H-2550/34.5/0.415 | 34.5kV | 415V | 11 units |
| ZGSL-H-2550/24.94/0.415 | 24.94kV | 415V | 8 units |
| ZGSL-H-2550/12.47/0.415 | 12.47kV | 415V | 8 units |
| ZGSL-H-2550/ 13.2/0.48 | 13.2kV | 480V | 3 units |
| ZGSL-H-2550/34.5/0.48 | 34.5kV | 480V | 4 units |
| ZGSL-H-2550/24.94/0.48 | 24.94kV | 480V | 6 units |
Contact Daelim Transformer for special requirements
These transformers were exported to the United States in 2023 and four units support a data center in Missouri, ensuring safe, reliable, efficient, and cost-effective operation. Primary voltage is supplied via a four-position load break switch, with a 5-position tap changer on the high-voltage side.
Specifications include a rated capacity of 2550 kVA (expandable to 3300 kVA), primary voltage of 34.5 kV (BIL 150 kV), and secondary voltage of 415V (BIL 30 kV). ASTM II mineral insulating liquid is used, with a temperature rise of 65℃ and efficiency reaching up to 99.4%.
High-conductivity aluminum strip windings ensure stable performance under high load currents, reducing procurement costs. The transformer utilizes a three-phase three-column core leg and features Dyn1 connection for high and low voltage windings.
Safety measures include bay-o-net and current limiting fuses for overload and overcurrent protection. An oil temperature indicator with high-temperature alarm and tripping contact enhances operational safety. Additionally, the low-voltage terminal is reinforced for added support.
The image below displays four 2550 kVA pad mounted transformers that have been installed and are effectively supporting power for the data center in Missouri. The customer has given Daelim Transformer’s transformers a high evaluation. The Daelim Transformer team is highly professional and efficient, providing rapid technical solutions, reference drawings, appearance drawings, and production drawings, completing production in just 8 weeks. They have proven to be a perfect partner.
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