High Permeability Silicon Steel Transformer Iron Core for Three Phase Industrial Transformers

Overview

3PEI-120 (3PH 3UI) EI silicon steel lamination core is a professional three-phase transformer magnetic core component, specially designed for manufacturing high-power three-phase industrial transformers, AC motors and generators. Adopts cold-rolled electrical silicon steel material with precision die-cutting process, stable magnetic performance and long service life, widely used in power distribution, industrial automation and electrical energy conversion fields.

Product Model & Dimension Specification

Model: 3PEI-120 Standard dimension data from our size chart:

• Overall length a: 600mm
• Tongue width b/c/d/f: 120mm
• Middle window height e: 360mm
• Mounting holes quantity: 6 holes
• Angle θ: 16° Custom air gap, thickness and punching tolerance are acceptable for OEM & ODM orders.

Core Performance Advantages

1. Ultra Low Core Loss Low iron loss effectively reduces heat generation during transformer operation, cuts energy consumption, improves overall equipment operation efficiency and extends the service cycle of your three-phase transformer.
2. Superior High Magnetic Permeability High permeability silicon steel sheet builds stronger magnetic field inside the coil, optimizes energy transmission efficiency, brings stable and reliable output performance for AC motors and generators.
3. High Stacking Factor Structure Optimized 3UI lamination stacking design reserves larger winding installation space for copper coils, enhances the compactness and working efficiency of the finished transformer.
4. Insulated Protective Coating Uniform insulation varnish coating on each lamination surface prevents inter-sheet short circuit, lowers breakdown risk, greatly improves electrical safety and anti-corrosion ability in harsh working environments.

Application Scenarios

• Three-phase isolation transformers & control transformers
• Industrial power supply and distribution equipment
• AC servo motors, generators and inductors
• Electrical engineering, new energy power conversion devices

Our Factory Strength

We are a professional manufacturer of EI/UI/3PEI series silicon steel lamination cores, full model range from 3PEI-45 to 3PEI-120, strict dimensional inspection, RoHS & ISO compliant, bulk factory wholesale with competitive price, support customized size, hole position and surface treatment.