Omsan High-Efficiency Low-Voltage (LV) Transformers

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Omsan low-voltage transformers are designed and manufactured to perform energy conversion at the ≤1 kV level with high efficiency, low losses, and long service life.

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Thanks to advanced electromagnetic design methods and optimized material selection, transformer performance is balanced to provide maximum efficiency both at no-load and under load. This approach helps reduce energy costs and increase system efficiency, especially in continuously operating systems.

The core structure used in Omsan LV transformers consists of high-quality silicon steel sheets (M330 / M400) with low hysteresis losses, and no-load losses (P₀) are minimized by maintaining the magnetic flux density at an optimum level.

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In the winding design, high-conductivity copper is used to keep current density under control, thereby reducing load losses (I²R + stray losses). The winding geometry and layout are optimized to reduce leakage flux, improving both efficiency and voltage regulation.

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In terms of thermal performance, temperature rise is kept under control thanks to structures designed for natural air-cooled (AN) or forced air (AF) systems. This extends insulation life, reduces maintenance needs, and ensures long-term reliable operation.

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Technical Performance Table (LV Insulation / Power Transformer – ≤1 kV)

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Standard Technical Specifications

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• Voltage level: ≤ 1 kV

• Frequency: 50 / 60 Hz

• Connection group: Dyn / Yyn / custom design

• Core material: M330 / M400 silicon steel

• Winding material: Electrolytic copper / optional aluminum

• Cooling: AN / AF

• Insulation class: F / H

• Protection class: IP00 – IP23

• Standards: IEC 60076-11 / IEC 61558

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Technical Performance Advantages

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• Low no-load loss (P₀): Provides energy savings in continuously powered systems

• Low load loss (Pk): Offers high efficiency under load

• High efficiency (%η): Up to 99% performance

• Advanced voltage regulation: Stable output thanks to low impedance

• Low temperature rise: Long insulation life, long lifespan, and reliable operation

• Low noise level: Optimized core structure

• Compact and modular design: Suitable for panel and system integration

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Application Areas

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• Industrial plants

• Panel and machine power supply systems

• UPS and data centers

• Power electronics and automation systems