# Haihong Electric (Guangdong Haihong)

> Inventor and global leader of 3D Three-Dimensional Triangular Wound-Core transformer technology; Haihong Electric delivers revolutionary efficiency from 110 kV oil power transformers to naturally-ventilated dry-type and ultra-quiet (<40 dB) distribution transformers.

> Headquarters: Kaiping, Guangdong, China - Warranty: 3 years - Sample models below: 5 (total catalog models: 5)

**Canonical:** https://voltformer.com/brand/haihong-electric - markdown: https://voltformer.com/brand/haihong-electric.md

## Overview

Inventor and global leader of 3D Three-Dimensional Triangular Wound-Core transformer technology; Haihong Electric delivers revolutionary efficiency from 110 kV oil power transformers to naturally-ventilated dry-type and ultra-quiet (<40 dB) distribution 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://en.gdhaihong.com/

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

## Sample Models

- [VF-HAI-3D-50M-110K - Haihong 50 MVA 110/35 kV 3D Three-Dimensional Triangular Wound-Core Power Transformer](https://voltformer.com/product/haihong-50-mva-110-35-kv-3d-three-dimensional-triangular-wound-core-power-transformer.md)
- [VF-HAI-S20-3D-1600-35 - Haihong S20 1600 kVA 35/0.4 kV 3D Triangular Wound-Core Ultra-Quiet Hermetic Transformer](https://voltformer.com/product/haihong-s20-1600-kva-35-0-4-kv-3d-triangular-wound-core-ultra-quiet-hermetic-transformer.md)
- [VF-HAI-SCB18-3D-2000-35 - Haihong SCB18 2000 kVA 35/0.4 kV 3D Triangular Wound-Core Cast Resin Dry-Type Transformer](https://voltformer.com/product/haihong-scb18-2000-kva-35-0-4-kv-3d-triangular-wound-core-cast-resin-dry-type-transformer.md)
- [VF-HAI-SOL-3D-3150-35 - Haihong 3150 kVA 35/0.8-0.8 kV 3D Dual-Secondary Solar Step-Up Transformer](https://voltformer.com/product/haihong-3150-kva-35-0-8-0-8-kv-3d-dual-secondary-solar-step-up-transformer.md)
- [VF-HAI-SCBH15-1250-35 - Haihong Electric (Guangdong Haihong) 1250 kVA 35/0.4 kV Cast-Resin Dry-Type Transformers](https://voltformer.com/product/haihong-scbh15-1250-kva-35-kv-3d-wound-amorphous-dry-type-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.