--- title: "Transformers & Substations — Pad-Mounted & Dry-Type | Entogo" description: "Transformers and substations for North America: three-phase pad-mounted and single-phase overhead distribution transformers, dry-type and amorphous-core…" url: https://entogo.ca/products/category/transformers-substations/ lang: en type: website image: https://entogo.ca/og-cover.jpg alternates: en: https://entogo.ca/products/category/transformers-substations/ fr-CA: https://entogo.ca/fr/products/category/transformers-substations/ fr: https://entogo.ca/fr/products/category/transformers-substations/ es: https://entogo.ca/es/products/category/transformers-substations/ ar: https://entogo.ca/ar/products/category/transformers-substations/ pl: https://entogo.ca/pl/products/category/transformers-substations/ ro: https://entogo.ca/ro/products/category/transformers-substations/ ru-KZ: https://entogo.ca/ru/products/category/transformers-substations/ ru-UZ: https://entogo.ca/ru/products/category/transformers-substations/ ru-KG: https://entogo.ca/ru/products/category/transformers-substations/ ru-TJ: https://entogo.ca/ru/products/category/transformers-substations/ ru-TM: https://entogo.ca/ru/products/category/transformers-substations/ ru-AZ: https://entogo.ca/ru/products/category/transformers-substations/ ru-AM: https://entogo.ca/ru/products/category/transformers-substations/ ru-GE: https://entogo.ca/ru/products/category/transformers-substations/ site: https://entogo.ca/ llms: https://entogo.ca/llms.txt --- Home › Products › Transformers & Substations Power Equipment # Transformers & Substations Pad-mounted, overhead, dry-type and substation transformers and unit substations — designed to ANSI/IEEE C57 and DOE efficiency standards for North American utility-scale and industrial power. Summary Transformers and substations for North America: three-phase pad-mounted and single-phase overhead distribution transformers, dry-type and amorphous-core units, substation/power transformers and skid-mounted unit substations — designed to ANSI/IEEE C57 and DOE 10 CFR 431 efficiency, 60 Hz, UL (cULus)/CSA certifiable. Built in our own factory. [![Representative outline drawing of an Entogo three-phase dead-front pad-mounted transformer — front and side elevations, not a photograph](https://entogo.ca/_astro/Entogo-Three-Phase-Pad-Mounted-Transformer-Outline.BEuthAyQ_ggksH.webp) Power Equipment ### Three-Phase Pad-Mounted Distribution Transformer Three-phase pad-mounted distribution transformer for North American utility, commercial and industrial service — 75–2500 kVA, 12.47–34.5 kV class primary to 480Y/277 or 208Y/120 secondary, dead-front loop/radial-feed, NEMA 3R. Designed to IEEE C57.12.34 and DOE 10 CFR 431; UL/CSA certifiable. View](https://entogo.ca/products/three-phase-pad-mounted-transformer/)[![Entogo 36 kV outdoor compact unit substation for renewables and industrial sites](https://entogo.ca/_astro/Entogo-35kV-Chinese-Type-Substation.Dvb2rMnE_Z1wVTEq.webp) Power Equipment ### 36 kV Outdoor Compact Unit Substation A factory-assembled outdoor unit substation — incoming 34.5 / 35 kV switchgear, liquid-filled step-up or step-down transformer (1,000–10,000 kVA) and a low-voltage section in one weather-tight enclosure — for solar PV, wind and industrial interconnection. Built to IEEE C37.121, ANSI C57.12.34 and IEC 62271-202. View](https://entogo.ca/products/outdoor-unit-substation-36kv/)[![Entogo amorphous-core high-efficiency dry-type transformer](https://entogo.ca/_astro/Entogo-SCBH15-Amorphous-Alloy-Dry-Type-Transformer.CfCVUmci_Z56Pvf.webp) Power Equipment ### Amorphous-Core Dry-Type Transformer (High-Efficiency) A high-efficiency amorphous-metal-core dry-type transformer with very low no-load loss, low noise and low partial discharge — 30–2500 kVA, medium-voltage primary to 35 kV class stepping down to 480/208 V, fire-safe. Designed to UL 1562, CSA C9/C802.2 and DOE 10 CFR 431; UL/CSA certifiable. View](https://entogo.ca/products/amorphous-core-dry-type-transformer/)[![Entogo modular skid-mounted step-up collector unit substation for renewables](https://entogo.ca/_astro/Entogo-Modular-Prefabricated-Substation-Boosting-Station.ER8-5pAg_1FgNst.webp) Power Equipment ### Modular Skid-Mounted Unit Substation (Step-Up / Collector) A fully modular, skid-mounted unit substation for renewable collector and step-up duty — cutting site footprint by ~30% and design/installation time by ~70%, with cloud-based remote diagnostics. Up to 38 kV class, 60 Hz; designed to IEEE C37.121/ANSI C57.12.34; UL/CSA certifiable. View](https://entogo.ca/products/modular-skid-unit-substation/)[![Entogo 36 kV class three-phase oil-immersed power transformer for substations](https://entogo.ca/_astro/Entogo-35kV-Three-Phase-Oil-Immersed-Distribution-Transformer.BWoRk9EQ_Z1dAjmQ.webp) Power Equipment ### 36 kV Oil-Immersed Power Transformer A liquid-filled (mineral oil) three-phase power transformer for substation and subtransmission duty in 34.5 / 35 / 36 kV networks, rated 2.5 to 31.5 MVA with ONAN / ONAF cooling, off-circuit or on-load tap changing and copper windings, designed to IEEE C57.12.00 / C57.12.10 and IEC 60076. View](https://entogo.ca/products/oil-immersed-power-transformer-36kv/)[![Entogo single-phase overhead pole-mounted distribution transformer](https://entogo.ca/_astro/Entogo-Oil-Immersed-Power-Transformer.CrmqSHyg_1u981k.webp) Power Equipment ### Single-Phase Overhead (Pole-Mounted) Distribution Transformer Single-phase overhead pole-mounted distribution transformers for North American utility lines — 10 to 167 kVA, 7200 / 12470GrdY / 24940GrdY primary to 120/240 V secondary, conventional or completely self-protected (CSP). Designed to IEEE C57.12.20 and DOE 10 CFR 431 efficiency, 60 Hz; UL / CSA certifiable. View](https://entogo.ca/products/single-phase-pole-mounted-transformer/)[![Entogo three-phase ventilated dry-type distribution transformer for indoor installation](https://entogo.ca/_astro/Entogo-Three-Phase-Dry-Type-Distribution-Transformer.CFPX-dwa_ZTA5IE.webp) Power Equipment ### Three-Phase Dry-Type Distribution Transformer A three-phase ventilated dry-type distribution transformer for indoor commercial/industrial service — 15–2500 kVA, low-voltage 600 V class (480 to 208Y/120) and medium-voltage to 35 kV class, 220 °C insulation. Designed to UL 1561/1562, CSA C9 and DOE 10 CFR 431; UL/CSA certifiable. View](https://entogo.ca/products/three-phase-dry-type-distribution-transformer/)[![Entogo three-dimensional triangular wound-core low-loss distribution transformer](https://entogo.ca/_astro/Entogo-Stereoscopic-Triangular-Transformer.ChH9EFSn_Z1ffw8C.webp) Power Equipment ### Three-Dimensional Wound-Core Transformer (Low-Loss) A three-dimensional (triangular) wound-core distribution transformer with a closed, symmetric core for lower no-load loss, balanced flux, low noise and high short-circuit withstand — oil-filled or dry-type, 15/25/35 kV class, 60 Hz. Designed to IEEE C57/UL and DOE 10 CFR 431; UL/CSA certifiable. View](https://entogo.ca/products/wound-core-distribution-transformer/)[![Entogo combined pad-mounted transformer with integrated MV switching](https://entogo.ca/_astro/Entogo-Combined-Transformer.Dnpo8NDr_ZpRF3M.webp) Power Equipment ### Combined Pad-Mounted Transformer (Integrated MV Switching) Combined pad-mounted transformer integrating the medium-voltage load-break switch, fuse protection and low-voltage distribution with the transformer in one tamper-resistant tank — 75–2500 kVA, 15/25/35 kV class, 60 Hz. Designed to IEEE C57.12.34/.28; UL/CSA certifiable. View](https://entogo.ca/products/combined-pad-mounted-transformer/)[![Entogo overhead pole-mounted distribution transformer complete set with cutout and arrester](https://entogo.ca/_astro/Entogo-10kV-Pole-Mounted-Transformer-Complete-Set.CbDfTClh_ZOxieg.webp) Power Equipment ### Overhead Distribution Transformer Set (Pole-Mount Package) A complete overhead pole-mount distribution package — transformer, fused cutout, lightning arrester, secondary/metering pedestal, jumpers and hardware — engineered to a single 15 kV class, 60 Hz specification. Transformer designed to IEEE C57.12.20 and DOE 10 CFR 431; UL/CSA certifiable. View](https://entogo.ca/products/pole-mount-transformer-set/)[![Entogo pad-mounted compact secondary unit substation for commercial and industrial service](https://entogo.ca/_astro/Entogo-Prefabricated-Substation-Series.DVq0FUxf_Z1q59Nl.webp) Power Equipment ### Pad-Mounted Compact Secondary Unit Substation A factory-assembled compact secondary unit substation — incoming medium-voltage switching, distribution transformer (≤2500 kVA) and a low-voltage section in one weather-tight pad-mounted enclosure for 15/25 kV class service, 60 Hz. Designed to IEEE C37.121, ANSI C57.12.34 and IEC 62271-202; UL/CSA certifiable. View](https://entogo.ca/products/compact-secondary-unit-substation/)[![Entogo inverter-duty solar and storage step-up unit substation skid](https://entogo.ca/_astro/Entogo-New-Energy-Integrated-PV-Prefabricated-Box-Substation.BbhcGbvm_Z1ULC7s.webp) Power Equipment ### Solar / Storage Skid — Inverter-Duty Step-Up Unit Substation An inverter-duty step-up unit substation (solar/storage skid) integrating a liquid-filled step-up transformer, MV switching and inverter interface — stepping inverter output up to 34.5 kV for PV and battery-storage interconnection, 60 Hz. Designed to IEEE C57.12.34, C57.159 and C37.121; UL/CSA certifiable. View](https://entogo.ca/products/solar-storage-skid-substation/) Configure & quote ## Customize your transformer and get a quote. [Configure a transformer](https://entogo.ca/products/transformer-quote/) More product lines ## Explore the rest of the range - [Switchgear & Distribution Medium- and low-voltage switchgear, pad-mounted gear and switchboards designed to ANSI/IEEE C37 and UL for safe, reliable North American distribution. Explore range](https://entogo.ca/products/category/switchgear-distribution/) - [Energy Storage Battery energy storage systems for grid support, peak shaving and renewable-energy integration. Explore range](https://entogo.ca/products/category/energy-storage/) - [EV Charging & PV-Storage-Charging AC/DC charging infrastructure and integrated photovoltaic-storage-charging systems. 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Company facts, catalogue index and contact: https://entogo.ca/llms.txt_