# Special Industrial & Process Transformers

> Arc furnace (EAF), green hydrogen electrolyser, rectifier, traction and mining Ex-proof transformers.

> Special transformers for heavy industry, steel melting, chemical electrolysis, high-speed rail and mining with extreme current and harmonic stress.

> Parent hierarchy: [Power & Energy Equipment](https://voltformer.com/catalog.md) / Transformers

**Canonical:** https://voltformer.com/category/special-industrial-process-transformers - markdown: https://voltformer.com/category/special-industrial-process-transformers.md

## Subcategories

- [Arc & Melting Furnace Transformers (EAF/LF/SAF)](https://voltformer.com/category/special-industrial-process-transformers/electric-arc-furnace-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 10 MVA - 160 MVA, See selected product ratings
- [Rectifier & Electrolysis Transformers](https://voltformer.com/category/special-industrial-process-transformers/rectifier-electrolysis-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 2 MVA - 80 MVA, See selected product ratings
- [STATCOM, SVG & Power-Quality Coupling Transformers](https://voltformer.com/category/special-industrial-process-transformers/statcom-svg-power-quality-coupling-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 5 MVA - 100 MVA, 6 kV - 36 kV / 0.4 kV - 6.6 kV
- [Port & Ship Shore-Power Transformers](https://voltformer.com/category/special-industrial-process-transformers/port-ship-shore-power-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 1 MVA - 50 MVA, 6 kV - 36 kV / 0.4 kV - 11 kV
- [Railway & Traction Transformers](https://voltformer.com/category/special-industrial-process-transformers/railway-traction-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 2 MVA - 63 MVA, 34.5 kV - 220 kV / 0.59 kV - 27.5 kV
- [Mining & Flameproof (Ex-Proof)](https://voltformer.com/category/special-industrial-process-transformers/mining-flameproof-ex-proof-transformers.md): Verify configuration-specific ratings and compliance in the manufacturer documentation. - 315 kVA - 2500 kVA, 6 kV - 10 kV / 1.14 kV - 690V - 400V

## Sample Products

- [VF-TBEA-EAF-30MVA-345 - TBEA 30 MVA 34.5 kV / 200-800V 60 kA Electric Arc Furnace (EAF) Steel Melting Transformer](https://voltformer.com/product/tbea-30-mva-34-5-kv-200-800v-60-ka-electric-arc-furnace-eaf-steel-melting-transformer.md)
- [VF-TBEA-HYD-25MVA-345 - TBEA 25 MVA 34.5 kV / 600V DC 24-Darbe Green Hydrogen Electrolyser Rectifier Transformer](https://voltformer.com/product/tbea-25-mva-34-5-kv-600v-dc-24-pulse-green-hydrogen-electrolyser-rectifier-transformer.md)
- [VF-TBEA-TRC-40MVA-110 - TBEA 40 MVA 110/27.5 kV Scott-Connected 25 kV High-Speed Rail (HSR) Catenary Transformer](https://voltformer.com/product/tbea-40-mva-110-27-5-kv-scott-connected-25-kv-high-speed-rail-hsr-catenary-transformer.md)
- [VF-TBEA-MIN-1250-6 - TBEA 1250 kVA 6 kV / 1.14 kV Underground Mining Flameproof (Ex-Proof) Dry-Type Transformer](https://voltformer.com/product/tbea-1250-kva-6-kv-1-14-kv-underground-mining-flameproof-ex-proof-dry-type-transformer.md)
- [VF-BTW-TRAC-50M-220K - Baobian Electric 50 MVA 220/27.5 kV HSR High-Speed Train Scott Traction Transformer](https://voltformer.com/product/baobian-electric-50-mva-220-27-5-kv-hsr-high-speed-train-scott-traction-transformer.md)
- [VF-XD-EAF-63M-35K - China XD Group 63 MVA 35 kV / 850V Electric Arc Furnace (EAF) Steel Melting Transformer](https://voltformer.com/product/china-xd-group-63-mva-35-kv-850v-electric-arc-furnace-eaf-steel-melting-transformer.md)
- [VF-SUNTEN-TRAC-3300-35 - Sunten Electric 3300 kVA 35 kV / 590V 24-Pulse Metro DC Traction Rectifier Dry-Type Transformer](https://voltformer.com/product/sunten-electric-3300-kva-35-kv-590v-24-pulse-metro-dc-traction-rectifier-dry-type-transformer.md)
- [VF-BEST-EAF-40M-345 - BEST Transformer 40 MVA 34.5 kV / 650V Electric Arc Furnace (EAF) Furnace Transformer](https://voltformer.com/product/best-transformer-40-mva-34-5-kv-650v-electric-arc-furnace-eaf-furnace-transformer.md)

## Technical specialization coverage

- **Electric Arc Furnace (EAF) High-Current Transformers** (Arc & Melting Furnace Transformers (EAF/LF/SAF)): Catalogued in the current snapshot.
- **Ladle Furnace (LF) & Submerged Arc (SAF) Transformers** (Arc & Melting Furnace Transformers (EAF/LF/SAF)): Catalogued in the current snapshot.
- **Green Hydrogen Electrolyzer & DC Rectifier Power Transformers** (Rectifier & Electrolysis Transformers): Catalogued in the current snapshot.
- **12 / 24 / 48-Pulse Multi-Pulse Aluminum & Chemical Rectifier Transformers** (Rectifier & Electrolysis Transformers): Catalogued in the current snapshot.
- **STATCOM / SVG High-dv/dt Coupling Transformers** (STATCOM, SVG & Power-Quality Coupling Transformers): Catalogued in the current snapshot.
- **Multi-Voltage Shore-to-Ship Marine Supply** (Port & Ship Shore-Power Transformers): Catalogued in the current snapshot.
- **25 kV / 2x25 kV High-Speed Rail Locomotive & Catenary Substations** (Railway & Traction Transformers): Catalogued in the current snapshot.
- **Metro & LRT 750V / 1500V DC Traction Power Distribution Transformers** (Railway & Traction Transformers): Catalogued in the current snapshot.
- **Underground Flameproof Ex-Proof Dry-Type Mining Substation Transformer** (Mining & Flameproof (Ex-Proof)): Catalogued in the current snapshot.

## Official sources

- https://webstore.iec.ch/en/publication/599

- **Last reviewed:** 2026-09-13

## Typical Industries

- Iron-Steel & Metallurgy
- Green Hydrogen & Electrolysis
- Railways & High-Speed Rail
- Underground Mining