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Eaton’s secondary unit substation is a close-coupled assembly consisting of primary high voltage equipment, three-phase power transformers and secondary low voltage equipment. Because the integrated transformer solution locates transformers and secondary distribution equipment near the load concentration, secondary distribution cables/buses are kept to minimum lengths – reducing power losses and exposure to faults and improving voltage regulation and service continuity.
Eaton’s Cooper Power series substation transformers are optimised 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 | 4.76 kV, 15 kV , 27 kV, 34.5 kV |
| kVA - Three Phase | 112.5 - 3750 kVA |
| BASIC IMPULSE LEVEL (BIL) | 350 kV BIL and Below |
| Secondary voltage | 600 V |
| 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, Aluminium |
