High-Frequency Immunity Transformer

Model Number:S20-20000-Nx2
Rated Volume Quantity:20000KVA
High Voltage:35KV
Low Voltage:3.15KV/3.3KV/6.3KV/6.6KV/10.5KV
No-Load Loss:9070W
Load Loss:63600W
No-load electricity:0.30%
Short circuit resistance:8%

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Product Introduction

Products Description

Efficiency Leader Design

Incorporates a laser-scribed silicon steel core (B30P120 grade), achieving a 33% reduction in no-load losses compared to IEC 60076-20 Tier 2, and 18% lower load losses. Certified to EU Tier 1+ efficiency standards.

Adaptive Cooling Topology

Combines V-wave radiators (≥8.2 m² per unit) with bidirectional oil-flow guidance, maintaining a ≤58 K temperature rise at 40 °C ambient temperature (IEC 60076-7 thermal stability verified). Enhances continuous operation capability in tropical climates by 35% compared to conventional designs.

Full-Spectrum Anti-Disturbance Architecture

Certified to IEC 60076-5 Zone 2 seismic requirements (0.3 g acceleration). Achieves 3.0 MPa coil axial preload force (industry average: 2.5 MPa), with 180 kA/2 s short-circuit withstand capacity.

Smart Dynamic Sealing System

Features a pressure-balanced corrugated tank (leakage rate ≤0.05 mbar·L/s) with electronic humidity monitoring (±3% RH accuracy), enabling 7-year core maintenance-free operation (validated per IEEE 62-2019). Certified for C4 salt-spray corrosion environments according to ISO 12944.

Multi-Harmonic Scenario Compatibility

Integrated with RC dampers and interlayer shielded windings; passes 2nd to 50th harmonic superposition testing (IEC 61000-4-7 Class A). Supports THDi ≥12% (field-verified in PV/ESS plants) with an adaptive loss compensation algorithm.

Products Parameters

Model number	S20-20000-N×2
Rated volume quantity(KVA)	20000
High voltage(KV)	35/38.5
High voltage tap range(KV)	±5% or ±2 × 2.5%
Low voltage(KV)	3.15/3.3/6.3/6.6/10.5
Connection group label	ynd11
No-load loss(W)	9070
Load loss(W)	63600
No-load electricity(%)	0.30
Short circuit resistance(%)	8

Products Description

Our factory & quipment

Our transformer production combines automated equipment with the exquisite craftsmanship of experienced technicians. From winding and assembly to insulation treatment, each process is strictly controlled by a skilled technical team.
The workshop environment maintains constant temperature and humidity, in compliance with ISO 9001 international quality management standards, ensuring that product performance remains stable, safe, and durable.
Production processes are transparent and visualized. We are committed to using technology to improve efficiency and provide customers with zero-defect industrial power solutions.