# GE Vernova 42.18 MVA 132 kV / 4×0.490 kV 122 kA DC Rectifier Transformer

> High-current GE Vernova rectifier transformer reference for electrolysis and metal-processing plants.

> SKU: VF-GEV-RECT-4218M-132 | Brand: GE Vernova (General Electric) | Category: Power & Energy Equipment / Transformers / Special Industrial & Process Transformers / Rectifier & Electrolysis Transformers

**Voltformer canonical:** https://voltformer.com/product/ge-vernova-42-18-mva-132-kv-rectifier-transformer - markdown version: https://voltformer.com/product/ge-vernova-42-18-mva-132-kv-rectifier-transformer.md

## Overview

GE Vernova 42.18 MVA 132 kV / 4×0.490 kV 122 kA DC Rectifier Transformer is intended for 20 MW Green Hydrogen Electrolyser DC Power Supply. Configured electrical data: 42.18 MVA, 132/0.49 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Özel Bağlantı and short-circuit impedance 10.5%. Construction: Copper (Cu-Cu); cooling: ODAF; loss class: Ecodesign Tier 2. These values support preliminary engineering selection; verify insulation levels, thermal limits, short-circuit duty, installation conditions and applicable standards against the manufacturer datasheet and the site study.

- **Application:** 20 MW Green Hydrogen Electrolyser DC Power Supply
- **Target industries:** Green Hydrogen Production Facilities, PEM & Alkaline Electrolysis Plants, Synthetic Fuel (e-Fuel) Plants
- **Brand:** [GE Vernova (General Electric)](https://voltformer.com/brand/ge-vernova.md) - GE Vernova Grid Solutions provides high-performance protection, control, and automation solutions including the renowned Multilin 8 Series and MiCOM Agile product lines.
- **Category:** [Power & Energy Equipment](https://voltformer.com/catalog.md) / **Transformers** / [Special Industrial & Process Transformers](https://voltformer.com/category/special-industrial-process-transformers.md): Arc furnace (EAF), green hydrogen electrolyser, rectifier, traction and mining Ex-proof transformers. / [Rectifier & Electrolysis Transformers](https://voltformer.com/category/special-industrial-process-transformers/rectifier-electrolysis-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 42.18 MVA |
| Primary / secondary voltage | 132 kV / 0.49 kV (Regulating transformer + rectifier transformer - project configured) |
| Frequency / phases | 50 Hz / 3-phase - special connection |
| Short-circuit impedance (Uk) | 10.5% |
| No-load loss P0 | 23.62 kW |
| Load loss Pk | 227.8 kW |
| Calculated efficiency (power factor = 1) | 99.4075% at 100% load; 99.6195% at 50% load |
| Loss class | Ecodesign Tier 2 |
| Windings | Copper (Cu-Cu) - cooling: ODAF - insulation: Class A |
| Temperature rise | 65 K - sound pressure: 66 dB(A) |
| Mass and dimensions | 38000 kg - 4800×2900×4200 mm |
| Enclosure | IP54 - wheel gauge: 1435 mm |
| LI / AC withstand | 330 kV peak / 159 kV rms - partial discharge: 10 pC |
| Environment | -25°C / +40°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | Plug-in Separable Elbow Terminals (Dead-Front) / Porcelain DIN 42531 |

## Standards

- IEC 61378-1 (rectifier transformers)
- IEC 60076
- CE

## Accessories

**Included:** Interphase reactor interface, Rectifier-duty bushings, Online monitoring interface
**Optional:** Saturable reactors, OLTC, Harmonic monitoring

## Official sources

- https://www.gevernova.com/grid-solutions/sites/default/files/2025-09/Rectifier-Brochure-EN-N50108-Hybrid-202504-R001.pdf
- https://www.gevernova.com/electrification/automation/protection-control-metering/

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer family/application source. GE Vernova’s official rectifier brochure lists a 42.18 MVA, 132 kV / 4×0.490 kV, 122 kA DC zinc-smelter reference. The full multi-tank/phase-shift arrangement and guaranteed nameplate are project-specific. Exact order code, guaranteed losses, dimensions, insulation level, cooling stage, winding material and project options must be confirmed with the OEM before procurement or an SLD study.

## Pricing & Logistics

- Pricing type: RFQ (On Request) - Indicative range: $295,000 – $350,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEC 61378-1 (rectifier transformers), IEC 60076, CE. Verify applicability and conformity against the exact offered model and project jurisdiction.

## RFQ

Request a formal factory quotation via Voltformer RFQ:

```json
POST https://voltformer.com/api/v1/rfq
{"companyName":"Example Energy","email":"procurement@example.com","items":[{"skuOrId":"VF-GEV-RECT-4218M-132","quantity":1}]}
```

Full catalog JSON: https://voltformer.com/agent-catalog.json - OpenAPI: https://voltformer.com/openapi.json