CAREPOLE
CAREPOLE pole-mounted dry-type (cast-resin) single-phase overhead distribution transformer, 10–100 kVA / ≤ 36 kV
CAREPOLE
- Windings cast with cycloaliphatic epoxy resin under vacuum, separated from the core — solid insulation keeps moisture out of the windings and withstands the dielectric loads of the distribution network
- No flammable oil-based insulating fluids and no tank: self-extinguishing cast resin, no explosion risk, no risk to water sources or nature reserves from oil leaks
- Maintenance-free with an expected lifetime of 25+ years — servicing limited to checking vegetation conditions and wildlife management
- Direct replacement for liquid-filled overhead distribution transformers: identical brackets and pole-fixing mechanisms, mountable at any angle, immediate energizing after installation
- Higher temperature withstand than liquid-filled transformers thanks to the thermal class of the solid insulation — units can be overloaded for longer periods of peak demand
- Orderable as Sensformer: sensors and smart IoT gateway transmit operational data with end-to-end encryption for loading, temperature and life-consumption views
Overhead distribution grids (pole-mounted)Urban, rural and coastal outdoor installationsDrop-in replacement of liquid-filled overhead distribution transformersEnvironmentally sensitive areas near water sources and nature reserves
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CAREPOLE covers 10–100 kV of the distribution transformers range (≤ 150 kV across the category, √ scale).
Specifications
Main
| Product type | Pole-mounted dry-type single-phase overhead distribution transformer, cast with cycloaliphatic epoxy resin |
| Insulation | Solid cast-resin (cycloaliphatic epoxy) — no oil-based insulating fluids, no tank; self-extinguishing, excellent electrical and mechanical properties |
| Windings | Cast with epoxy resin under vacuum, separated from the core; winding insulation surface in direct contact with ambient air for efficient natural heat exchange |
| Core | Wound core with high-quality electrical steel or amorphous (amorphous core reduces technical losses) |
| Bushings | High- and low-voltage bushings cast in one piece with the windings; one or two high-voltage bushings |
| Frame & bracket | Robust mechanical frame protects the core against corrosion and serves as lifting and fastening mechanism; bracket identical to conventional (liquid-filled) overhead transformers |
Electrical ratings
| Rated power | Single-phase, 10 kVA to 100 kVA |
| Maximum voltage | 36 kV maximum voltage capacity |
| Tap changer | Optional off-load tap changer, up to 5 positions — mountable on top of the high-voltage bushing (developed and patented by Siemens Energy) |
| Overload capability | Withstands higher temperatures than liquid-filled transformers (thermal class of the solid insulation) — overloadable for longer periods of peak demand |
| Detailed rating data | Not published in the source brochure — the ranges above are the only ratings stated; no per-rating table (impedance, losses, weights or dimensions) is given |
Service, environment & safety
| Expected lifetime | 25+ years |
| Maintenance | Maintenance-free — servicing limited to checking vegetation conditions and wildlife management |
| Installation environment | Outdoor: developed specifically for urban, rural or coastal installation; high weather and corrosion resistance; mountable at any angle with immediate energizing after installation |
| Fire & environmental safety | Self-extinguishing cast resin, no explosion risk; absence of insulating fluids removes risk to water sources and nature reserves from oil leaks, tank explosions or fires |
| Noise | Special manufacturing process and advanced sealing compound ensure perfect core protection and low-noise operation |
| Digital monitoring | Sensformer option: sensors and smart IoT gateway, end-to-end encrypted transmission to a storage and visualization platform — loading information, temperature status and life-consumption (residual lifetime) views |
Standards & compliance
| Product standard | IEEE C57.12.01 — Standard for General Requirements for Dry Type Distribution and Power Transformers |
| Overhead-type standard | IEEE C57.12.20 — Standard for Overhead Type Distribution Transformers 500 kVA and Smaller (where applicable) |
| Efficiency | In accordance with the U.S. Department of Energy (DoE); other requirements as dictated by customer standards |
Compatible accessories
Voltage adjustment
Off-load tap changer, up to 5 positions, mountable on top of the high-voltage bushing (patented)
Protection
Surge arrester (on request)
Handling & mounting
Lifting lugs
Handling & mounting
Mounting bracket (identical to conventional overhead transformers)
Earthing
Transformer ground connector; low-voltage ground on request
Digital monitoring
Sensors and smart IoT gateway — orderable as Sensformer (on request)
Documents & downloads
Brochure CAREPOLE — The eco-friendly alternative for more reliable and safer distribution grids (© Siemens Energy 2022)
Also covered in the technical library
Presentation Sustainable Transformers — Be More Eco-Friendly, Waste Less Energy (Presentation)
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