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Home > Electrical & Electronics > Passive Components > Capacitor > Power Supply Transformer for Welding Systems 415v to 380v Conversion

Power Supply Transformer for Welding Systems 415v to 380v Conversion

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Product Spotlights

Enables reliable operation of 380V welding equipment on 415V power grids. Features robust construction to handle demanding welding load cycles, high inrush currents, and variable operations. Offers high efficiency (≥97% typical) for energy savings and is available in oil-immersed or dry-type cooling for flexible installation. Customizable kVA ratings and built with Class H insulation for durability in industrial environments.

US$ 450 - 850 MOQ: 10 Units

Key Specifications

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Application:

Other, For welding systems and industrial machinery

Input Voltage:

415V AC, 3-phase

Output Voltage:

380V AC, 3-phase

Contact Supplier Request Quote Chat Now

Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Application Other, For welding systems and industrial machinery

Input Voltage 415V AC, 3-phase

Output Voltage 380V AC, 3-phase

Cooling Method Oil-immersed or dry-type (customizable)

Insulation Class Class H (up to 180°C) standard

Frequency 50/60 Hz

Protection Level IP23 standard (higher available)

Mounting Wall-mounted or floor-standing

Customization Available for specific kVA ratings and configurations

As a specialized manufacturer with over a decade of experience in electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. understands the critical need for reliable power conversion in industrial welding applications. Our Power Supply Transformer for Welding Systems is engineered to provide a stable and efficient 415V to 380V conversion, ensuring your welding machinery operates at its optimal performance level. Designed for durability and safety in demanding industrial environments, this transformer is a core component for factories, workshops, and construction sites where consistent power quality is non-negotiable. With an annual export value reflecting our global trust and a commitment to rigorous quality management systems, we deliver solutions that power productivity.

This transformer is specifically built to address the common voltage mismatch between regional power grids (415V) and industrial welding equipment rated for 380V. Incorrect voltage can lead to equipment malfunction, reduced weld quality, and increased wear. Our solution provides a seamless and reliable interface.

Core Technical Features & Design Advantages:

Precision Voltage Conversion: Utilizes high-grade grain-oriented silicon steel cores and precision-wound copper/aluminum windings to achieve highly efficient and accurate voltage step-down from 415V to 380V, minimizing energy losses as heat.
Robust Construction for Welding Loads: Welding operations create highly variable and often inductive loads with significant inrush currents. The transformer is designed with a high short-circuit withstand capability and reinforced insulation to handle these demanding cycles without degradation.
Enhanced Thermal Management: Depending on the model and kVA rating, units feature optimized cooling systems. Oil-immersed types offer excellent heat dissipation and noise reduction, while dry-type units provide easier maintenance and are suitable for indoor applications with specific environmental requirements.
Protection & Safety Focus: Built-in features often include thermal protection sensors, pressure relief devices (for oil types), and terminals housed in a protected enclosure meeting at least IP23 standards, safeguarding against dust and water spray.
Flexible Configuration: While designed for the standard 415V/380V 3-phase conversion, parameters like the kVA rating (from small workshop units to large industrial capacities), tap settings for minor voltage adjustments, and specific mounting options are tailored to your system's exact requirements.

Key Specifications Table:

Parameter	Standard Specification	Notes / Customization
Primary (Input) Voltage	415V ±10%, 3-Phase	Taps may be available for 400V or 440V input.
Secondary (Output) Voltage	380V, 3-Phase	Stable under varying load conditions typical of welding.
Frequency	50 Hz / 60 Hz	Designed for global market compatibility.
Insulation Class	Class H (180°C)	Ensures longevity even in high ambient temperatures.
Cooling Type	ONAN (Oil) / AN (Dry)	Selection based on application environment and kVA.
Efficiency	≥ 97% (at full load, typical)	High efficiency reduces operational energy costs.

Tangible Benefits for Your Operation:

Maximized Equipment Uptime: By providing the correct voltage, you protect your valuable welding inverters, MIG/MAG, TIG, and arc welding machines from damage due to overvoltage stress, reducing unplanned downtime.
Consistent Weld Quality: A stable 380V supply ensures consistent arc characteristics and power delivery, leading to uniform weld penetration, bead appearance, and overall joint integrity.
Operational Cost Savings: High-efficiency design translates to lower electricity consumption over the transformer's lifespan. Reduced equipment failures also lower maintenance and replacement costs.
Simplified Global Deployment: Enables the use of standardized 380V welding equipment in regions with 415V grid power, offering flexibility for multinational companies or equipment relocation.
Safety Compliance: Proper voltage matching is a fundamental electrical safety measure, helping your facility comply with workplace electrical standards and reducing shock or fire hazards.

Jinhua Dika's manufacturing expertise is backed by a commitment to quality, evidenced by our adherence to recognized management standards. Our products reach diverse markets from North America and Western Europe to Southeast Asia and Africa, supported by flexible shipping from major Chinese ports. This global footprint and our focus on tailored solutions mean we can reliably support your specific voltage conversion needs. Investing in this purpose-built transformer is an investment in the reliability, quality, and safety of your welding operations. Contact us today to discuss your kVA requirements and receive a detailed proposal for a transformer solution engineered for performance.

Frequently Asked Questions (FAQ):

Q: How do I determine the correct kVA rating for my welding transformer?
A: The kVA rating depends on the total connected load of your welding equipment. You need to sum the input kVA or amperage of all welders that will operate simultaneously. It's recommended to include a safety margin (e.g., 20-25%). Providing us with your welder models and quantity allows us to calculate the optimal rating.
Q: What is the lead time for a custom-rated transformer?
A: Standard models may have shorter lead times. For custom specifications (specific kVA, special taps, enclosures), typical production lead times range from 4 to 8 weeks, depending on complexity and current order volume. We provide accurate timelines upon quotation.
Q: Can this transformer handle the high inrush current of welding machines?
A: Yes, a key design criterion is high short-circuit impedance and robust construction to withstand the repeated magnetic and thermal stresses caused by the frequent starting and stopping (inrush currents) characteristic of welding cycles.
Q: What are the main differences between oil-immersed and dry-type transformers for this application?
A: Oil-immersed transformers generally offer better heat dissipation, are often more compact for a given rating, and are quieter. Dry-type transformers use air or resin cooling, eliminating fire/leak risks from oil, making them preferable for indoor installations with strict environmental regulations. We advise based on your installation site.
Q: Do you provide installation guidance or wiring diagrams?
A: Yes, each transformer is shipped with comprehensive documentation, including a detailed wiring diagram, nameplate specifications, and installation/maintenance instructions. For complex installations, further technical support is available.
Q: Is remote monitoring or smart functionality available?
A: While our standard units focus on robust power conversion, options for integrated temperature monitors, alarm contacts, or interfaces for building management systems can be explored as a customization request.
Q: What warranty do you offer on these industrial transformers?
A> We typically offer a standard warranty period covering manufacturing defects. The specific terms and duration are confirmed with the sales contract, reflecting our confidence in the product's build quality and reliability.
Q: Can you accommodate a different output voltage, like 400V or 220V?
A> Absolutely. While this product is standardized for 415V to 380V conversion, our manufacturing capability allows for a wide range of input/output voltage combinations. Please specify your exact requirement for a tailored solution.