# Mingyang 7000 kVA 66/33 kV Floating Offshore Wind Step-Up Transformer

> Mingyang 7000 kVA 66/33 kV Floating Offshore Wind Step-Up Transformer belongs to the Wind Plant (RES) Step-Up Transformers category and is rated at 7000 kVA with 66/33 kV primary/secondary voltage. Application: Deep-Sea Floating Wind Turbine Platforms. Final ratings must be verified against the manufacturer datasheet.

> SKU: VF-MY-FLT-7000-66 | Brand: Mingyang Electrical (Mingyang Group) | Category: Power & Energy Equipment / Transformers / Renewable Energy Transformers (PV, Wind & BESS) / Wind Plant (RES) Step-Up Transformers

**Voltformer canonical:** https://voltformer.com/product/mingyang-7000-kva-66-33-kv-floating-offshore-wind-step-up-transformer - markdown version: https://voltformer.com/product/mingyang-7000-kva-66-33-kv-floating-offshore-wind-step-up-transformer.md

## Overview

Mingyang 7000 kVA 66/33 kV Floating Offshore Wind Step-Up Transformer is intended for Deep-Sea Floating Wind Turbine Platforms. Configured electrical data: 7000 kVA, 66/33 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11 and short-circuit impedance 8%. Construction: Copper (Cu-Cu); cooling: KNAN (configuration-dependent); loss class: Floating Offshore Wind Marine Standard. 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:** Deep-Sea Floating Wind Turbine Platforms
- **Target industries:** Offshore Wind Parks, Offshore Energy Islands
- **Brand:** [Mingyang Electrical (Mingyang Group)](https://voltformer.com/brand/mingyang-electrical.md) - Technology giant specialized in renewable energy, wind plants and BESS battery storage transformers; Mingyang produces 66 kV floating offshore step-up transformers and integrated field solar compact k
- **Category:** [Power & Energy Equipment](https://voltformer.com/catalog.md) / **Transformers** / [Renewable Energy Transformers (PV, Wind & BESS)](https://voltformer.com/category/renewable-energy-transformers.md): Multi-winding, harmonic-tolerant step-up transformers for solar (PV), wind and battery storage (BESS) plants. / [Wind Plant (RES) Step-Up Transformers](https://voltformer.com/category/renewable-energy-transformers/wind-farm-step-up-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 7000 kVA |
| Primary / secondary voltage | 66 kV / 33 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11 |
| Short-circuit impedance (Uk) | 8% |
| No-load loss P0 | 5.80 kW |
| Load loss Pk | 42.0 kW |
| Calculated efficiency (power factor = 1) | 99.32% at 100% load; 99.54% at 50% load |
| Loss class | Floating Offshore Wind Marine Standard |
| Windings | Copper (Cu-Cu) - cooling: KNAN (configuration-dependent) - insulation: Class K (ester fluid 300°C+) |
| Temperature rise | 65 K - sound pressure: 60 dB(A) |
| Mass and dimensions | 16800 kg - 3100×1950×2750 mm |
| Enclosure | IP56 / C5-M Heavy marinee - wheel gauge: 1400 mm |
| LI / AC withstand | 325 kV peak / 140 kV rms - partial discharge: 5 pC |
| Environment | -40°C / +50°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | Direct Copper Busbar Terminals (Busbar Integrated / IP00-IP31) |

## Standards

- IEC 60076-16
- IEC 60076
- DNV GL Floating Wind

## Accessories

**Included:** Anti-Vibration Winding Skeleton, Envirotemp Ester Fluid, Hermetic Pressure Relief Valve
**Optional:** Online Gas Monitoring

## Official sources

- https://mingyang.com.cn/

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

Manufacturer portfolio/family source. Confirm the exact order code, guaranteed ratings and project-specific options against the current OEM datasheet before procurement or an SLD study.

## Pricing & Logistics

- Pricing type: RFQ (Project Engineering) - Indicative range: $135,000 – $165,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 48 months
- Compliance candidates: IEC 60076-16, IEC 60076, DNV GL Floating Wind. 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-MY-FLT-7000-66","quantity":1}]}
```

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