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Eaton’s Cooper Power series Envirotran Hardened Data Center (HDC) three-phase substation transformer provides superior performance and surge protection even in stressful electrical environments. Designed and built around superior efficiency and reliability, substation HDC Transformers can be utilized in both indoor and outdoor applications, stepping down a wide variety of distribution system voltages while meeting an extensive array of complex data center needs including relaying protection, advanced monitoring and VFI fault protection.
Cargill's FR3 dielectric fluid provides superior transformer performance, safety and environmental friendliness.
| Base kVA |
45 kVA to 12,000 kVA |
| Primary voltage |
2400 V to 46,000 V |
| Secondary voltage |
120 V to 24,940 V |
| Basic Impulse Level (BIL) |
30kV to 250kV |
| ANSI/IEEE |
C57.12.00 and C57.12.36 |
| CSA |
C88 |
| NEMA (sound level) |
NEMA TR-1 |
| Third-party approval/recognition |
FM Global (Indoor & Outdoor), UL/cUL – available for most ratings |
| Layout |
Unit or open substation type |
| Tamper resistance |
Three-point latching and padlock system with recessed penta-head bolt |
| Enclosure integrity |
Meets or exceeds ANSI/IEEE C.57.12.28 andC57.12.29 |
| Material |
Mild or stainless steel (304L) |
| Enclosure environment |
Indoor and outdoor |
| Insulating medium |
Air |
| Hinge material |
Stainless steel cabinet hinges and mounting studs |
| Distribution transformer | Three-phase substation |
| Install location | Indoor and outdoor |
| Power direction | Step-down and Step-up |
| Fluid | FR3 fluid or electrical grade mineral insulating oil (upon special request) |
| Tap changer | De-energized tap changer, externally operable |
| Terminations | Sidewall-mounted high-voltage porcelain bushings |
| Sidewall-mounted low-voltage molded epoxy bushings with NEMA spades |
|
| Tank features | Tank bases designed for skidding or rolling in any direction |
| Extra-heavy, welded-in-place lifting lugs and jack pads (4) |
|
| Cooling | Cooling radiators are welded directly to the tank |
| Removable Radiators (optional) |
|
| Standard gauges | Dial-type thermometer |
| Dial-type liquid level gauge | |
| Pressure vacuum gauge | |
| Cover mounted automatic pressure relief device | |
| Pressure test connection |
|
| Drain/fill valves Paint color | 1” upper fill plug with filter press connection |
| 1” drain valve with sampler combination (2500 kVA and below) | |
| 2” drain valve with sampler (over 2500 kVA) | |
| 1” upper filter valve (over 2500 kVA) | |
| Painted using ANSI #61 Light Gray; ANSI #70 Sky Gray; or special paint available per request |
|
| Grounding | Stainless steel NEMA 2-hole ground pads (750-7500 kVA) |
| Nameplate | Laser-scribed anodized aluminum nameplate (SS nameplate optional) |
Learn about the fundamentals of medium-voltage transformers
In the wake of a storm or disaster, Eaton understands that safety and speed of response is everything. You can rely on Eaton Care teams to plan, protect and connect.
