# CEEG DuPont Nomex® SG(B)10 2500 kVA 35/0.4 kV Class C (220°C) Dry-Type Transformer (VPI)

> CEEG DuPont Nomex® SG(B)10 2500 kVA 35/0.4 kV Class C (220°C) Dry-Type Transformer (VPI) belongs to the Cast-Resin Dry-Type Transformers category and is rated at 2500 kVA with 35/0.4 kV primary/secondary voltage. Application: Heavy Chemical Plants, Metallurgy, High-Temperature & Critical Facilities. Final ratings must be verified against the manufacturer datasheet.

> SKU: VF-CEEG-NMX-2500-35 | Brand: CEEG (China Electric Equipment Group) | Category: Power & Energy Equipment / Transformers / Distribution Transformers / Cast-Resin Dry-Type Transformers

**Voltformer canonical:** https://voltformer.com/product/ceeg-dupont-nomex-sg-b-10-2500-kva-35-0-4-kv-class-c-220-c-dry-type-transformer-vpi - markdown version: https://voltformer.com/product/ceeg-dupont-nomex-sg-b-10-2500-kva-35-0-4-kv-class-c-220-c-dry-type-transformer-vpi.md

## Overview

CEEG DuPont Nomex® SG(B)10 2500 kVA 35/0.4 kV Class C (220°C) Dry-Type Transformer (VPI) is intended for Heavy Chemical Plants, Metallurgy, High-Temperature & Critical Facilities. Configured electrical data: 2500 kVA, 35/0.4 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn11 and short-circuit impedance 6.5%. Construction: Copper (Cu-Cu); cooling: AN/AF (VPI Open-Ventilated); loss class: Class C (220°C) Nomex High Temp. 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:** Heavy Chemical Plants, Metallurgy, High-Temperature & Critical Facilities
- **Target industries:** Large Chemical Complexes, Cement Manufacturing Plants, Mission-Critical Industry
- **Brand:** [CEEG (China Electric Equipment Group)](https://voltformer.com/brand/ceeg-transformer.md) - Global pioneer in DuPont Nomex® insulated Class H and Class C (220°C) dry-type transformers; CEEG produces mining flameproof substations, amorphous-core dry-type and highly reliable oil power transfor
- **Category:** [Power & Energy Equipment](https://voltformer.com/catalog.md) / **Transformers** / [Distribution Transformers](https://voltformer.com/category/distribution-transformers.md): 50 kVA–3150 kVA oil-immersed hermetic, conservator and cast-resin dry-type medium-voltage distribution transformers. / [Cast-Resin Dry-Type Transformers](https://voltformer.com/category/distribution-transformers/cast-resin-dry-type-transformers.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 2500 kVA |
| Primary / secondary voltage | 35 kV / 0.4 kV (±2 x 2.5%) |
| Frequency / phases | 50 Hz / 3-phase - Dyn11 |
| Short-circuit impedance (Uk) | 6.5% |
| No-load loss P0 | 2.45 kW |
| Load loss Pk | 16.2 kW |
| Calculated efficiency (power factor = 1) | 99.26% at 100% load; 99.48% at 50% load |
| Loss class | Class C (220°C) Nomex High Temp |
| Windings | Copper (Cu-Cu) - cooling: AN/AF (VPI Open-Ventilated) - insulation: Class C (220°C DuPont Nomex®) |
| Temperature rise | 125 K - sound pressure: 55 dB(A) |
| Mass and dimensions | 6400 kg - 2150×1280×2180 mm |
| Enclosure | IP00 / optional IP23 / IP31 - wheel gauge: 1070 mm |
| LI / AC withstand | 170 kV peak / 70 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 60076-11
- IEEE C57.12.01
- UL Listed
- KEMA

## Accessories

**Included:** DuPont Nomex Insulation, PT100 Probes, Digital Thermostat
**Optional:** IP23 Protection Enclosure, Fan Kit (+50% Power Boost)

## Official sources

- https://www.ceegtransformer.com/

- **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 – $42,500 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEC 60076-11, IEEE C57.12.01, UL Listed, KEMA. 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-CEEG-NMX-2500-35","quantity":1}]}
```

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