Photovoltaic Isolation Transformer

The Photovoltaic Isolation Transformer is a cabinet enclosed isolation transformer designed for solar PV systems and other power electronics applications that demand safe galvanic separation, precise output, and strong anti interference performance. By fully isolating the primary and secondary sides, it helps suppress DC components and reduce surge impact, improving system stability for grid connected and off grid operation. This transformer supports a wide rated capacity range from 1 kVA to 6000 kVA (customizable), with common low voltage input/output options including 380 V / 400 V / 415 V (customizable) and 50/60 Hz operation. Built with high quality copper windings and a premium iron core, it delivers high efficiency (typically ≥95%) and stable operation. The integrated cabinet chassis with door lock supports safer installation and maintenance, while options such as aluminum foil shielding isolation and grounding enhance EMC performance. Protection grades can be customized (e.g., IP23/IP45/IP65), with insulation class options such as Class F or Class H and self cooling design. Typical applications include photovoltaic power generation, variable frequency power supplies (VFD), wind energy systems, UPS uninterrupted power supply, and EPS fire emergency power supply.

Key Features

• Efficient & Safe Isolation: Complete primary to secondary isolation helps mitigate DC injection and surge impact for safer PV/grid interfacing.
• Wide Capacity & Voltage Options: 1–6000 kVA (customizable) with common 380/400/415 V input and output (customizable) for flexible system matching.
• Precise Output & High Reliability: High quality copper windings and optimized core provide stable voltage and dependable long term operation.
• Anti Interference Design: Optional aluminum foil isolation and shielding grounding improve EMC performance in inverter based systems.
• Flexible Connection: Connection method such as YN/yn0 (customizable) to match project requirements and grid standards.
• Rugged Enclosed Cabinet: Lockable chassis supports safer operation; protection levels customizable (IP23/IP45/IP65) for different installation environments.
• Thermal & Overload Capability: Self cooling structure with optional temperature control strategy; typical overload capability supports short duration high current (project dependent).