--- title: "Electric Furnace Transformer | Entogo" description: "Entogo supplies electric-furnace transformers for metallurgical processes. Furnace type, secondary current, voltage range, impedance, tap operation and…" url: https://entogo.ca/products/electric-furnace-transformer/ lang: en type: website image: https://entogo.ca/_astro/electric-furnace-transformer.DhAc_6a9.webp alternates: en: https://entogo.ca/products/electric-furnace-transformer/ fr-CA: https://entogo.ca/fr/products/electric-furnace-transformer/ fr: https://entogo.ca/fr/products/electric-furnace-transformer/ es: https://entogo.ca/es/products/electric-furnace-transformer/ ar: https://entogo.ca/ar/products/electric-furnace-transformer/ pl: https://entogo.ca/pl/products/electric-furnace-transformer/ ro: https://entogo.ca/ro/products/electric-furnace-transformer/ ru-KZ: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-UZ: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-KG: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-TJ: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-TM: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-AZ: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-AM: https://entogo.ca/ru/products/electric-furnace-transformer/ ru-GE: https://entogo.ca/ru/products/electric-furnace-transformer/ site: https://entogo.ca/ llms: https://entogo.ca/llms.txt --- Products › Special-Purpose Transformers › Electric Furnace Transformer Special-Purpose Transformers # Electric Furnace Transformer ![Electric Furnace Transformer](https://entogo.ca/_astro/electric-furnace-transformer.DhAc_6a9_uC1cB.webp) Representative configuration. The offered model, dimensions and interfaces are confirmed with the technical proposal. Overview Entogo supplies electric-furnace transformers for metallurgical processes. Furnace type, secondary current, voltage range, impedance, tap operation and the complete heat cycle determine the design rather than plant demand alone. Entogo supplies this project equipment through manufacturing partners. Entogo Inc. in Toronto coordinates technical selection, supply scope and order support. | Specification | Value | | --- | --- | | Process duty | Arc or submerged-arc furnace application identified in the brief | | Power rating | MVA related to furnace duty and the agreed operating cycle | | Secondary circuit | Working voltage range, high-current terminals and conductor interfaces | | Regulation | On-load or off-circuit tapping selected for the process | | Impedance and reactor | Transformer/reactor scope and fault forces reviewed together | | Cooling | Self-cooled or forced-oil/water arrangement according to design | | Thermal duty | Heat cycle, short-time peaks, harmonics and cooling-water conditions | | Acceptance scope | Guarantee schedule, test plan and process interface drawings | Reference configurations and selection criteria are shown together. The technical offer defines the matched ratings, tests and guaranteed performance for the ordered unit. ## Start from the furnace operating cycle Melting and holding stages impose different currents and durations. Specify the entire cycle, including interruptions and short-time peaks, before agreeing continuous and cyclic loading. A single maximum-MVA figure is insufficient. Secondary terminals, flexible connections and any reactor must be coordinated with the furnace supplier. The required voltage steps and tap-changing duty follow the metallurgical process, not a generic distribution-transformer schedule. ## Applications - Electric furnaces - Metallurgical processing - Industrial process power ## Selection & project requirements - **Can a standard distribution transformer supply an arc furnace?**: Not by matching MVA alone. Furnace current, frequent load changes, fault forces, regulation and secondary interfaces require a dedicated assessment. The furnace manufacturer’s electrical duty should drive the transformer specification. - **Is every furnace transformer suitable for induction heating?**: No. Arc, submerged-arc and induction systems have different electrical interfaces. An induction installation may place a converter between the supply and the heating circuit; provide that topology and converter data before selecting the transformer. - **When is forced-oil/water cooling considered?**: Where the thermal design and installation call for it. State water temperature, flow, pressure, quality and redundancy requirements. The cooling arrangement and guaranteed loading must be agreed together rather than assumed from the product family. - **What is needed for an EAF transformer replacement?**: Send the existing nameplate, winding and tap diagrams, secondary voltage/current range, impedance/reactor data, heat cycle and dimensional interfaces. Include operating problems so the new design can address the process duty and replacement constraints. For Canadian and US projects, include the utility specification, service frequency and required approvals. State whether the order is for the transformer alone or an integrated equipment package. ## Discuss your equipment requirements Send your single-line diagram, load or process data, target market and required schedule. We will identify the configuration and documents needed for a technical quotation. ## Design references [![Low-voltage power distribution and switchgear serving nonlinear loads governed by IEEE 519 harmonic limits](https://entogo.ca/_astro/harmonic-distortion-ieee-519-limits.BUEcbegf_18OX90.webp) Power Quality ### Harmonic distortion: what IEEE 519 requires and how to meet it Harmonic distortion from VFDs, EV chargers, and data-center power supplies can breach IEEE 519 limits and quietly overheat neutrals, transformers, and switchgear. This guide explains the 519-2022 voltage and current limits and how to specify mitigation before it becomes a field problem. View](https://entogo.ca/insights/harmonic-distortion-ieee-519-limits/)[![Power transformer at an electrical substation, where nameplate percent impedance sets fault current and voltage regulation](https://entogo.ca/_astro/transformer-impedance-percent-z-selection.CNeq_Jkf_24aj2F.webp) Power & Distribution ### What transformer impedance should you specify? How %Z shapes fault current and voltage drop Transformer percent impedance (%Z) sets how much fault current the secondary can deliver and how far voltage sags under load. Lower %Z means higher available fault current and better regulation; higher %Z limits fault duty but drops more voltage. Here is how to choose it and what to specify. View](https://entogo.ca/insights/transformer-impedance-percent-z-selection/) ## Related equipment [![Scott-Connected Transformer](https://entogo.ca/_astro/scott-connected-transformer.C8DBVrLO_Zvi3Tr.webp) Products ### Scott-Connected Transformer Entogo supplies Scott-connected transformers for conversion between three-phase and two-phase circuits. Define the two output loads, 90° phase relationship, voltage ratio and operating cycle before selecting the winding design. View](https://entogo.ca/products/scott-connected-transformer/)[![Electrical Isolation Transformer](https://entogo.ca/_astro/isolation-transformer.DSeX7yhX_Z1TxHzw.webp) Products ### Electrical Isolation Transformer Entogo supplies electrical isolation transformers with separate primary and secondary windings. Select voltage ratio, kVA, shielding, grounding and enclosure for the load; isolation duty and dry-type construction are distinct requirements. View](https://entogo.ca/products/isolation-transformer/)[![Solar Inverter-Duty Transformer](https://entogo.ca/_astro/solar-inverter-duty-transformer.CmSgUtIf_1aiy1j.webp) Products ### Solar Inverter-Duty Transformer Entogo supplies inverter-duty transformers for PV and battery-storage interconnection. Match the inverter/PCS voltage, winding arrangement, grounding, harmonics and thermal duty to the collector network and connection study. View](https://entogo.ca/products/solar-inverter-duty-transformer/) ## Structured data (JSON-LD) ```json {"@context":"https://schema.org","@type":"Product","@id":"https://entogo.ca/products/electric-furnace-transformer/#product","url":"https://entogo.ca/products/electric-furnace-transformer/","name":"Electric Furnace Transformer","description":"Entogo supplies electric-furnace transformers for metallurgical processes. 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