── DRY-TYPE TRANSFORMERS ──
Open Class H
At Tesla Transformers, we manufacture high-quality open Class H dry-type transformers power ratings from 30 kVA to 5 MVA and voltages up to 36 kV. We comply with NTC, IEC-EN, or ANSI standards, ensuring low noise levels and reduced losses. We offer options for low and medium voltage, and customization with temperature monitors, surge protection, and bimetallic connectors.
Single-phase isolation for medical use
0.5-10 kVA series 1.1 / 1.1 kV
Class H dry-type open isolation transformers for medical or hospital use are designed to ensure electrical safety and reliable performance in critical environments. They feature a Class H (180°C) insulation system, ensuring high thermal resistance and durability. They offer low electromagnetic emissions and a high level of electrical insulation to protect sensitive equipment and users. Their open design facilitates heat dissipation and maintenance, making them ideal for operating rooms, laboratories, and critical areas in hospitals.
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High electrical safety.
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High operational reliability.
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Certified for special installations.
Three-Phase Transformer
5000 KVA Series 36 / 1.1 kV
The Class H open dry-type transformers in the 15kV and 36kV series are designed for medium-voltage applications, offering high safety and reliability. Their Class H insulation (180°C) ensures thermal resistance and a long service life. Being dry, they eliminate the use of oils, reducing fire risks and maintenance. Ideal for industrial and commercial substations and electrical distribution, they guarantee efficient performance in 15kV and 36kV systems.
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Withstands high operating temperatures.
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No presence of contaminating liquid.
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Environmentally friendly.
Three-Phase Transformer
5000 KVA series 15 / 1.1 kV
The 15kV and 36kV series of open dry-type Class H transformers are designed for medium-voltage applications, offering high safety and reliability. Their Class H (180°C) insulation ensures thermal resistance and a long service life. Being dry, they eliminate the use of oils, reducing fire risks and maintenance. Ideal for industrial and commercial substations and electrical distribution, they guarantee efficient performance in 15kV and 36kV systems.
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Withstands high operating temperatures.
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Use in confined spaces.
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No presence of contaminating liquids.
Three-Phase Transformer
2000 KVA series 1.1 / 1.1 kV
Low-low class H open dry transformers are designed for low voltage applications, offering high safety and efficiency. Their Class H (180°C) insulation guarantees thermal resistance and durability. They are ideal for powering industrial, commercial, and residential equipment with low voltage demands.
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Withstands high operating temperatures.
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Compact and versatile for different installation sites.
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High reliability and electrical safety.
Multi-pulse converter transformer for variable speed drives
Up to 2000 KVA up to 15 kV series
Class H multi-pulse open dry transformers are designed to power variable speed drives, reducing harmonics and improving power factor. Their Class H (180°C) insulation ensures high thermal resistance and durability. They divide the power into multiple phase-shifted secondary windings, allowing configurations of 6, 12, 18, or more pulses. Their open design facilitates heat dissipation, and by not using dielectric fluids, they minimize fire and maintenance risks. They are ideal for industrial applications, mining, and systems with high efficiency and power quality requirements.
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Withstands high operating temperatures.
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Multiple voltages and connections.
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Low fire risk.
Special OPEN class H dry transformers
Class H open dry transformers designed for high currents are robust and reliable. Their Class H (180°C) insulation offers excellent thermal and electrical resistance. They are ideal for handling high currents in heavy industries, power plants, electric traction systems, and data centers.
