# Sanil Electric 3000 kVA 34.5/0.69 kV Wind Plant (RES) Step-Up Transformers

> Sanil Electric 3000 kVA 34.5/0.69 kV Wind Plant (RES) Step-Up Transformers belongs to the Wind Plant (RES) Step-Up Transformers category and is rated at 3000 kVA with 34.5/0.69 kV primary/secondary voltage. Application: Wind-Turbine Tower and Nacelle Power Generation Facilities. Final ratings must be verified against the manufacturer datasheet.

> SKU: VF-SAN-OFF-3000-345 | Brand: Sanil Electric | Category: Power & Energy Equipment / Transformers / Renewable Energy Transformers (PV, Wind & BESS) / Wind Plant (RES) Step-Up Transformers

**Voltformer canonical:** https://voltformer.com/product/sanil-3000-kva-34-5-kv-offshore-wind-dry-type-transformer - markdown version: https://voltformer.com/product/sanil-3000-kva-34-5-kv-offshore-wind-dry-type-transformer.md

## Overview

Sanil Electric 3000 kVA 34.5/0.69 kV Wind Plant (RES) Step-Up Transformers is intended for Wind-Turbine Tower and Nacelle Power Generation Facilities. Configured electrical data: 3000 kVA, 34.5/0.69 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11 and short-circuit impedance 6.5%. Construction: Copper (Cu-Cu); cooling: AF (Tower Interior, Forced Fan); 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:** Wind-Turbine Tower and Nacelle Power Generation Facilities
- **Target industries:** Offshore Wind Farms, Inside-Turbine Wind Installations (Nacelle / Tower Base), Heavy Coastal, Marine & Shipyard Facilities
- **Brand:** [Sanil Electric](https://voltformer.com/brand/sanil-electric.md) - Korean specialist Sanil Electric manufactures high-durability offshore wind turbine cast-resin transformers, solar step-up units and marine-grade power reactors.
- **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 | 3000 kVA |
| Primary / secondary voltage | 34.5 kV / 0.69 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11 |
| Short-circuit impedance (Uk) | 6.5% |
| No-load loss P0 | 3.10 kW |
| Load loss Pk | 22.5 kW |
| Calculated efficiency (power factor = 1) | 99.15% at 100% load; 99.42% at 50% load |
| Loss class | Ecodesign Tier 2 |
| Windings | Copper (Cu-Cu) - cooling: AF (Tower Interior, Forced Fan) - insulation: Class H (180°C) |
| Temperature rise | 100 K - sound pressure: 62 dB(A) |
| Mass and dimensions | 8200 kg - 2350×1450×2400 mm |
| Enclosure | Configuration-specific ingress protection - wheel gauge: 1070 mm |
| LI / AC withstand | 170 kV peak / 70 kV rms - partial discharge: 5 pC |
| Environment | -25°C / +50°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | Configuration-specific technical value |

## Standards

- IEC 60076-11
- IEC 60076-16
- DNVGL-ST-0145

## Accessories

**Included:** PT100 Temperature Sensors (3x Winding + 1x Core), Configuration-specific technical value, Configuration-specific technical value
**Optional:** Configuration-specific technical value, Configuration-specific technical value

## Official sources

- https://sanil.co.kr/kr/

- **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 (On Request) - Indicative range: $41,000 – $47,500 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEC 60076-11, IEC 60076-16, DNVGL-ST-0145. 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-SAN-OFF-3000-345","quantity":1}]}
```

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