Eaton’s primary unit substation transformer is ideal for stepping down utility distribution voltages to in-plant distribution voltages. By locating the medium-voltage transformer and close-coupled equipment near areas of load concentration, the secondary distribution cables/buses are kept to minimum lengths, resulting in advantages including reduced power losses and exposure to faults, and improved voltage regulation and service continuity.
Eaton’s Cooper Power series substation transformers are optimized to perform in the most rigorous sectors of industry and are designed to last. Transformers can be filled with Envirotemp FR3 fluid, offering fire safety and extended life or with conventional mineral oil for common applications.
Eaton’s dry type transformer solutions are custom-designed dry-type power transformers, which give environmental protection, for both indoor and outdoor applications.
| RATED MAXIMUM PRIMARY VOLTAGE | 6.9 kV, 15 kV , 27 kV, 34.5 kV, 69 kV |
| kVA - Three Phase | 500 - 20,000 KVA |
| BASIC IMPULSE LEVEL (BIL) | 350 KV BIL and Below |
| Secondary Voltage | 2.4 kV - 34.5 kV |
| IEEE STANDARD | 100-1977 |
| ANSI | C57.12.00 , C57.12.91 |
| NEMA | 201-1982 |
| CSA | C88 |
| THIRD PARTY APPROVAL/RECOGNITION | UL , FM |
| SEISMIC QUALIFICATION | Zone 4 Certification |
| INSULATING MEDIUM | Mineral Oil, Silicone Fluid, Envirotemp™ FR3™, VPI, VPE, Cast Coil, RESIBLOC |
| ENCLOSURE TYPE | NEMA 1, NEMA 3R |
| Bus Material | Copper , Aluminum |
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