# BEST Trafo (Balıkesir Elektromekanik)

> Turkey's most established transformer manufacturer since 1966; BEST Trafo is the choice for global EPC projects with high-voltage power transformers up to 1000 MVA 525 kV, arc furnace transformers, TEİAŞ transmission transformers and renewable inverter transformers.

> Headquarters: Balıkesir, Turkey - Warranty: 3 years - Sample models below: 8 (total catalog models: 8)

**Canonical:** https://voltformer.com/brand/best-trafo - markdown: https://voltformer.com/brand/best-trafo.md

## Overview

Turkey's most established transformer manufacturer since 1966; BEST Trafo is the choice for global EPC projects with high-voltage power transformers up to 1000 MVA 525 kV, arc furnace transformers, TEİAŞ transmission transformers and renewable inverter transformers. Request a formal factory quotation through Voltformer. Verify applicable standards, guaranteed ratings and declarations of conformity against the exact offered-model documentation and project jurisdiction. The IEC/EN 50708 series and EU Regulations 548/2014 and 2019/1783 apply only where the transformer and market fall within their legal scope.

## Official sources

- https://www.besttransformer.com/

- **Last reviewed:** 2026-09-13

## Sample Models

- [VF-BST-PWR-50MVA-154 - BEST Transformer 50 MVA 154/34.5 kV High-Voltage Step-Down Power Transformer (TEİAŞ Compliant)](https://voltformer.com/product/best-transformer-50-mva-154-34-5-kv-high-voltage-step-down-power-transformer-tei-as-compliant.md)
- [VF-BEST-AUTO-250M-380K - BEST Transformer 250 MVA 380/154/34.5 kV Three-Winding Interconnection Autotransformer](https://voltformer.com/product/best-transformer-250-mva-380-154-34-5-kv-three-winding-interconnection-autotransformer.md)
- [VF-BEST-EAF-40M-345 - BEST Transformer 40 MVA 34.5 kV / 650V Electric Arc Furnace (EAF) Furnace Transformer](https://voltformer.com/product/best-transformer-40-mva-34-5-kv-650v-electric-arc-furnace-eaf-furnace-transformer.md)
- [VF-BEST-EAF-80M-345 - BEST Transformer 80 MVA 34.5 kV / 900V 100 kA Electric Arc Furnace (EAF) Heavy Melting Furnace Transformer](https://voltformer.com/product/best-transformer-80-mva-34-5-kv-900v-100-ka-electric-arc-furnace-eaf-heavy-melting-furnace-transformer.md)
- [VF-BST-AUX-40M-154 - BEST 40 MVA 154/6.3-6.3 kV Dual-Secondary Power Plant Auxiliary Service Transformer](https://voltformer.com/product/best-40-mva-154-6-3-kv-power-plant-auxiliary-service-transformer.md)
- [VF-BST-NLTC-31M-154 - BEST 31.5 MVA 154/33 kV No-Load Tap-Changing (NLTC) Step-Down Power Transformer](https://voltformer.com/product/best-31-5-mva-154-33-kv-nltc-power-transformer.md)
- [VF-BST-AUT-TER-250M-380 - BEST 250 MVA 380/154/34.5 kV Tertiary-Winding Compensation Autotransformer](https://voltformer.com/product/best-250-mva-380-154-34-5-kv-tertiary-autotransformer.md)
- [VF-BST-SAF-60M-345 - BEST 60 MVA 34.5 kV Submerged Arc Furnace (SAF) Ferroalloy Transformer](https://voltformer.com/product/best-60-mva-34-5-kv-submerged-arc-furnace-transformer.md)

## RFQ

Use the family-specific search/get tools in [the tool reference](https://voltformer.com/tool-reference.md) to choose an exact SKU or ID. RFQ submission requires authentication, a complete draft and explicit user confirmation; unknown project inputs must not be invented.