# Hitachi Energy 500 MVA ±1100 kV HVDC Converter Transformer

> UHVDC converter transformer family for long-distance DC transmission and renewable integration.

> SKU: VF-HE-HVDC-500M-1100K | Brand: ABB / Hitachi Energy | 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/hitachi-energy-500-mva-1100-kv-hvdc-converter-transformer - markdown version: https://voltformer.com/product/hitachi-energy-500-mva-1100-kv-hvdc-converter-transformer.md

## Overview

Hitachi Energy 500 MVA ±1100 kV HVDC Converter Transformer is intended for Changji-Guquan 12,000 MW ±1100 kV UHVDC Converter Station. Configured electrical data: 500 MVA, 525/1100 kV primary/secondary voltage, 50 Hz, 1-phase, vector group Özel Bağlantı 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:** [ABB / Hitachi Energy](https://voltformer.com/brand/abb-hitachi-energy.md) - Global leader in high-voltage power grids and critical industrial infrastructure; Hitachi Energy delivers Resibloc® glass-fibre reinforced dry-type, TrafoStar™ large power transformers and EcoDry seri
- **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 | 500 MVA |
| Primary / secondary voltage | 525 kV / 1100 kV (OLTC - converter duty configured) |
| Frequency / phases | 50 Hz / 1-phase - special connection |
| Short-circuit impedance (Uk) | 17.5% |
| No-load loss P0 | 114.97 kW |
| Load loss Pk | 528.0 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 | 1550 kV peak / 680 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:** Converter-duty bushings, OLTC, Online DGA
**Optional:** Valve-side harmonic monitoring, Bushing monitoring, Redundant cooling bank

## Official sources

- https://www.hitachienergy.com/products-and-solutions/transformers/power-transformers/hvdc-converter-transformers
- https://www.hitachienergy.com/products-and-solutions/transformers

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

Manufacturer family/application source. Hitachi Energy publishes HVDC Classic converter transformer coverage from 80 kV to 1100 kV DC and 1200 kV AC. Converter transformer ratings, valve-side insulation and winding arrangement 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 (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-HE-HVDC-500M-1100K","quantity":1}]}
```

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