# GE Vernova 1000 MVA 1200 kV UHV AC Power Transformer

> UHV AC transformer family for ultra-high-voltage transmission backbones.

> SKU: VF-GEV-UHV-1000M-1200K | Brand: GE Vernova (General Electric) | Category: Power & Energy Equipment / Transformers / High-Voltage & Transmission Power Transformers / UHV & EHV Ultra-High-Voltage & HVDC Converter (750-1100 kV)

**Voltformer canonical:** https://voltformer.com/product/ge-vernova-1000-mva-1200-kv-uhv-ac-power-transformer - markdown version: https://voltformer.com/product/ge-vernova-1000-mva-1200-kv-uhv-ac-power-transformer.md

## Overview

GE Vernova 1000 MVA 1200 kV UHV AC Power Transformer is intended for Changji-Guquan 12,000 MW ±1100 kV UHVDC Converter Station. Configured electrical data: 1000 MVA, 1200/500 kV primary/secondary voltage, 50 Hz, 3-phase, vector group YNyn0 and short-circuit impedance 17.5%. Construction: Cu-Cu OFHC CTC; cooling: ODAF; loss class: World Record UHVDC Converter Grade. 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:** Changji-Guquan 12,000 MW ±1100 kV UHVDC Converter Station
- **Target industries:** Long-Distance HVDC Transmission Lines, Offshore HVDC Converter Platforms
- **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** / [High-Voltage & Transmission Power Transformers](https://voltformer.com/category/power-transmission-transformers.md): 5 MVA–1000 MVA 110 kV, 154 kV, 380 kV, 500 kV and 1000 kV UHV AC/DC transmission and interconnection power transformers. / [UHV & EHV Ultra-High-Voltage & HVDC Converter (750-1100 kV)](https://voltformer.com/category/power-transmission-transformers/uhv-ultra-high-voltage-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 1000 MVA |
| Primary / secondary voltage | 1200 kV / 500 kV (OLTC - UHV project configured) |
| Frequency / phases | 50 Hz / 3-phase - YNyn0 |
| Short-circuit impedance (Uk) | 17.5% |
| No-load loss P0 | 229.94 kW |
| Load loss Pk | 1056.0 kW |
| Calculated efficiency (power factor = 1) | 99.8716% at 100% load; 99.9013% at 50% load |
| Loss class | World Record UHVDC Converter Grade |
| Windings | Cu-Cu OFHC CTC - cooling: ODAF - insulation: Class A |
| Temperature rise | 65 K - sound pressure: 73 dB(A) |
| Mass and dimensions | 490000 kg - 12500×6800×11200 mm |
| Enclosure | IP55 - wheel gauge: 3000 mm |
| LI / AC withstand | 3000 kV peak / 1440 kV rms - partial discharge: 20 pC |
| Environment | -25°C / +40°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | RIP (Resin Impregnated Paper) Dry Condenser High-Voltage Bushing |

## Standards

- IEC 61378-2
- GB/T 18494.2
- IEEE C57.129
- CESI

## Accessories

**Included:** Online DGA, Bushing monitoring, Redundant cooling bank
**Optional:** Tertiary reactor connection, On-load tap changer, Digital transformer monitoring

## Official sources

- https://www.gevernova.com/electrification/equipment/transformers/power-transformers
- https://www.gevernova.com/electrification/automation/protection-control-metering/

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

Manufacturer family/application source. GE Vernova publishes large power transformer coverage up to 1200 kV AC and 1000 MVA. The final phase-bank arrangement, voltage ratio, insulation levels and guaranteed losses require the project datasheet. 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 (Project Engineering) - Indicative range: $3,200,000 – $3,900,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 60 months
- Compliance candidates: IEC 61378-2, GB/T 18494.2, IEEE C57.129, CESI. 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-UHV-1000M-1200K","quantity":1}]}
```

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