# Astor Enerji 3150 kVA 34.5/0.8-0.8 kV Dual Secondary Solar PV Step-Up Transformer

> Astor Enerji 3150 kVA 34.5/0.8-0.8 kV Dual Secondary Solar PV Step-Up Transformer belongs to the Solar PV Step-Up Transformers category and is rated at 3150 kVA with 34.5/0.8 kV primary/secondary voltage. Application: 3 MW Solar PV Step-Up Inverter Transformer. Final ratings must be verified against the manufacturer datasheet.

> SKU: VF-AST-SOL-3150-345 | Brand: Astor Enerji | Category: Power & Energy Equipment / Transformers / Renewable Energy Transformers (PV, Wind & BESS) / Solar PV Step-Up Transformers

**Voltformer canonical:** https://voltformer.com/product/astor-enerji-3150-kva-34-5-0-8-0-8-kv-dual-secondary-solar-pv-step-up-transformer - markdown version: https://voltformer.com/product/astor-enerji-3150-kva-34-5-0-8-0-8-kv-dual-secondary-solar-pv-step-up-transformer.md

## Overview

Astor Enerji 3150 kVA 34.5/0.8-0.8 kV Dual Secondary Solar PV Step-Up Transformer is intended for 3 MW Solar PV Step-Up Inverter Transformer. Configured electrical data: 3150 kVA, 34.5/0.8 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11-yn11 (Dual LV) and short-circuit impedance 7%. Construction: Aluminum (Al-Al); cooling: ONAN; 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:** 3 MW Solar PV Step-Up Inverter Transformer
- **Target industries:** Solar PV Power Plants, Utility & Commercial Solar Plants
- **Brand:** [Astor Enerji](https://voltformer.com/brand/astor-enerji.md) - Turkey's transformer production giant Astor Enerji manufactures oil-immersed hermetic, cast-resin dry-type and power transformers up to 800 kV in its modern 140,000 m² facilities in Ankara ASO 2. OSB,
- **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. / [Solar PV Step-Up Transformers](https://voltformer.com/category/renewable-energy-transformers/solar-pv-step-up-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 3150 kVA |
| Primary / secondary voltage | 34.5 kV / 0.8 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11-yn11 (Dual LV) |
| Short-circuit impedance (Uk) | 7% |
| No-load loss P0 | 2.05 kW |
| Load loss Pk | 18.5 kW |
| Calculated efficiency (power factor = 1) | 99.35% at 100% load; 99.58% at 50% load |
| Loss class | Ecodesign Tier 2 |
| Windings | Aluminum (Al-Al) - cooling: ONAN - insulation: Class A |
| Temperature rise | 65 K - sound pressure: 57 dB(A) |
| Mass and dimensions | 8200 kg - 2400×1500×2480 mm |
| Enclosure | IP54 - wheel gauge: 1070 mm |
| LI / AC withstand | 170 kV peak / 70 kV rms - partial discharge: 5 pC |
| Environment | -25°C / +40°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
- TS EN 50708 series
- TEDAŞ GES criteria

## Accessories

**Included:** Electrostatic Shield, Buchholz Relay, Magnetic Oil Gauge, Pressure Relief
**Optional:** Synthetic Ester Oil Filling, Online Gas & Moisture Sensor

## Official sources

- https://astoras.com.tr/

- **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: $36,000 – $42,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 24 months
- Compliance candidates: IEC 60076-16, TS EN 50708 series, TEDAŞ GES criteria. 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-AST-SOL-3150-345","quantity":1}]}
```

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