Dry Type Transformer

Our cast resin dry‑type transformer is designed for indoor high‑safety power distribution projects. Adopting advanced vacuum casting technology with F/H‑class fire‑resistant epoxy resin insulation and 100% high‑purity copper windings, this transformer features ultra‑low partial discharge ≤5pC, self‑extinguishing fire‑resistance, low‑noise running and minimal maintenance requirements.

As a professional Chinese manufacturer, we strictly control every production link including vacuum drying process to eliminate internal moisture. It delivers stable and reliable power conversion performance and extended service life, widely accepted by global industrial, commercial and infrastructure buyers. We support full customisation on capacity, voltage ratio and dimension for different project requirements.

Rated Capacity: 30–10000 kVA

Rated High Voltage: 11 kV、22KV、35KV

Maximum High Voltage: Up to 35 kV

Low Voltage: 400 / 415 V (Customizable)

Frequency: 50/60 Hz

Phase: Three Phase

Vector Group: Dyn11

Cooling Method: AN / AF

Installation: Indoor

Enclosure: Open Type / Optional Enclosure

Tapping Range: ±2 × 2.5% or ±5%Short-Circuit Impedance: According to capacity and project requirements

Low Partial Discharge

Our dry‑type transformer features ultra‑low partial discharge performance, with PD value controlled ≤5 pC, reaching high‑quality industry standard. Superior insulation structure effectively restricts partial discharge risk during long‑term operation. Stable electrical performance avoids insulation deterioration caused by partial discharge. It greatly reduces hidden faults under continuous load, guarantees reliable running for indoor power distribution projects. Low partial discharge design slows insulation aging, extends overall service life, minimizes maintenance cost for end users. Strict partial‑discharge test is implemented before factory delivery to ensure each unit meets IEC standard for safe, long‑time operation.