# ABB TXtreme Mining-Duty 2500 kVA 13.8/0.48 kV Transformer

> Corrosion-resistant ABB liquid-filled transformer family for harsh mining and industrial environments.

> SKU: VF-ABB-TXT-MINE-2500-138 | Brand: ABB / Hitachi Energy | Category: Power & Energy Equipment / Transformers / Special Industrial & Process Transformers / Mining & Flameproof (Ex-Proof)

**Voltformer canonical:** https://voltformer.com/product/abb-txtreme-mining-2500-kva-13-8-kv-transformer - markdown version: https://voltformer.com/product/abb-txtreme-mining-2500-kva-13-8-kv-transformer.md

## Overview

ABB TXtreme Mining-Duty 2500 kVA 13.8/0.48 kV Transformer is intended for Underground Methane-Gassy Coal Mine Mobile Substation. Configured electrical data: 2500 kVA, 13.8/0.48 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11 and short-circuit impedance 4.5%. Construction: Copper (Cu-Cu); cooling: ONAN; loss class: Configuration-specific loss class. 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:** Underground Methane-Gassy Coal Mine Mobile Substation
- **Target industries:** Underground Coal & Lignite Mines, Metal Ore Mines, TBM Tunnel Construction Works
- **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** / [Special Industrial & Process Transformers](https://voltformer.com/category/special-industrial-process-transformers.md): Arc furnace (EAF), green hydrogen electrolyser, rectifier, traction and mining Ex-proof transformers. / [Mining & Flameproof (Ex-Proof)](https://voltformer.com/category/special-industrial-process-transformers/mining-flameproof-ex-proof-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 2500 kVA |
| Primary / secondary voltage | 13.8 kV / 0.48 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11 |
| Short-circuit impedance (Uk) | 4.5% |
| No-load loss P0 | 3.70 kW |
| Load loss Pk | 23.6 kW |
| Calculated efficiency (power factor = 1) | 98.9198% at 100% load; 99.2379% at 50% load |
| Loss class | Configuration-specific loss class |
| Windings | Copper (Cu-Cu) - cooling: ONAN - insulation: Class H (180°C) |
| Temperature rise | 100 K - sound pressure: 62 dB(A) |
| Mass and dimensions | 6200 kg - 3200×1250×1450 mm |
| Enclosure | IP55 / Ex d I Mb (flameproof) - wheel gauge: 600 mm |
| LI / AC withstand | 35 kV peak / 17 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 60079-0 / 60079-1 (explosive atmosphere Ex-d)
- IEC 60076-11
- ATEX

## Accessories

**Included:** Corrosion-resistant tank/coating, Oil temperature indicator, Pressure relief device
**Optional:** Natural ester fluid, Mining enclosure, Buchholz relay

## Official sources

- https://new.abb.com/news/detail/1180/abb-unveils-new-txtreme-distribution-transformer-for-greater-resilience-in-harsh-environments
- https://electrification.us.abb.com/industries/mining
- https://www.hitachienergy.com/products-and-solutions/transformers

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

Manufacturer family/application source. ABB documents TXtreme harsh-environment distribution transformers and a mining portfolio including transformers. The cited pages do not certify an IECEx/Ex-d underground transformer; use this as a mining-duty family lead and verify the exact protection/enclosure standard. 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 (On Request) - Indicative range: $42,000 – $49,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEC 60079-0 / 60079-1 (explosive atmosphere Ex-d), IEC 60076-11, ATEX. 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-ABB-TXT-MINE-2500-138","quantity":1}]}
```

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