SG Series Three-Phase Dry-Type Isolation Transformer Step-Up/Step-Down 10~200kVA (0.1~500kVA Customizable)

SG Series Three-Phase Dry-Type Isolation Transformer (Step-Up/Step-Down 10~200kVA, Customizable)

Product Overview
The SG series three-phase dry-type isolation transformer is a static electrical device that changes AC voltage through the principle of electromagnetic induction — the turns ratio of the primary and secondary windings equals the voltage ratio. Beyond changing AC voltage, it can also change current, exchange impedance and shift phase, making it a core component for equipment control, power matching and safe isolation.

Primary and secondary voltages are fully customizable (220V/380V/440V/660V, etc.) — ideal for adapting imported equipment (e.g. 480V/60Hz machines connected to a 380V/50Hz grid), control supply for machine tools and CNC equipment, and safety isolation. Built with a cold-rolled silicon steel core and Class B insulation, it delivers low noise, high efficiency and long service life, certified to CE and CCC.

Key Features

• Fully customizable voltage: primary/secondary voltage and power per order; both step-up and step-down; suitable for grids worldwide (50/60Hz);
• Safe isolation: galvanic isolation between primary and secondary — suppresses interference and protects personnel and equipment;
• Low noise, high efficiency: premium cold-rolled silicon steel core, tightly stacked — low no-load loss and low noise;
• Solid materials: copper or aluminum windings optional (by budget and duty), Class B insulation (130℃), vacuum varnish impregnation — moisture-proof and durable;
• Compact structure: black powder-coated steel clamps with regular mounting holes — simple, quick vertical installation;
• Certified: CE and CCC — smooth export.

Main Specifications (typical examples; final values per order)

Typical Applications

Why Choose XD?
With years of transformer manufacturing and export experience, XD delivers products worldwide with complete type-test reports and international certifications. Power ratings and voltage combinations can be customized to IEC/ANSI/GB standards, with OEM/ODM service and full export documentation support. Send us your voltage and capacity requirements — our engineers will propose the optimal solution.