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As a professional manufacturer with ISO 9001 certification, Jinhua Dika Electrical Equipment Co., Ltd. is dedicated to providing reliable and customized power solutions for demanding industrial and scientific applications. Our custom 3kVA single-phase toroidal transformer, specifically designed for 110V input, offers a compact, efficient, and quiet power conversion solution ideal for sensitive laboratory equipment. We understand the critical need for stable, clean, and interference-free power in research and testing environments, and our transformer is engineered to meet these exacting standards. With over a decade of experience and exports to major global markets including North America, Europe, and Asia, we combine manufacturing expertise with a commitment to quality and customer-specific requirements.
This transformer is built to deliver exceptional performance where it matters most. The toroidal (doughnut-shaped) core design is inherently superior to traditional laminated E-I cores, offering several distinct advantages for laboratory use:
- Low Magnetic Stray Field: The symmetrical winding on the toroidal core results in a very low external magnetic field. This is crucial in laboratory settings to prevent electromagnetic interference (EMI) with sensitive instruments like oscilloscopes, spectrometers, and data acquisition systems, ensuring accurate and reliable measurements.
- High Efficiency and Low Losses: The continuous grain-oriented silicon steel core and precise winding technique minimize core losses (hysteresis and eddy current) and copper losses. This high efficiency translates into cooler operation, lower energy consumption, and enhanced long-term reliability for equipment that may run continuously.
- Compact Size and Light Weight: The toroidal design offers a higher power-to-volume ratio. A 3kVA toroidal transformer can be significantly smaller and lighter than an equivalent-rated E-I transformer, saving valuable space in crowded equipment racks or enclosures.
- Low Audible Noise: The core is tightly wound and vacuum impregnated, which mechanically secures it and dramatically reduces the hum or vibration common in other transformer types. This contributes to a quieter laboratory environment.
The transformer is highly customizable to fit your specific application needs. While the standard input is 110V, we can tailor the output voltage, number of taps, mounting style, and lead configurations. Common specifications for this model are detailed below:
| Parameter | Specification |
| Rated Power | 3000 VA (3 kVA) |
| Input Voltage | 110V AC, 50/60 Hz |
| Output Voltage | Custom (e.g., 12V, 24V, 48V, 120V, 240V, etc.) |
| Phase | Single Phase |
| Insulation Class | Class H (up to 180°C) |
| Efficiency | Typically >95% at full load |
| Regulation | Typically <5% (load dependent) |
| Core Material | High-grade grain-oriented silicon steel |
| Winding Material | High-purity oxygen-free copper |
| Mounting Options | Top bracket, chassis mount, or potted module |
Beyond the core specifications, we incorporate several design features for enhanced durability and safety. The windings are carefully layered and insulated with high-temperature materials (Class H) to withstand thermal stress. The entire assembly is often vacuum impregnated with varnish to protect against moisture, dust, and vibration. For applications requiring extra safety, optional electrostatic shielding between primary and secondary windings is available to further suppress high-frequency noise and provide a measure of isolation.
Frequently Asked Questions (FAQ):
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Q: Can this transformer be used for equipment requiring 220V output from a 110V source?
A: Yes, absolutely. This is a common requirement. We can wind the secondary coil to provide a 220V output (or any other voltage you specify) when powered by the 110V input. Please specify your exact output voltage needs when inquiring. -
Q: Is the transformer suitable for both 50Hz and 60Hz power systems?
A: Our design is typically optimized for a broad frequency range of 50-60Hz, making it compatible with power grids in North America (60Hz) and many other regions (50Hz). We confirm the frequency specification based on your order details. -
Q: What are the lead time and minimum order quantity (MOQ) for a customized unit?
A: For custom designs like this, the lead time is generally 15-30 days after confirmation of all technical details. We offer flexible MOQs to accommodate both prototype development and volume production; please contact us to discuss your specific quantity requirements. -
Q: How does the toroidal design benefit my lab's power quality?
A: The primary benefit is the drastic reduction of electromagnetic interference (EMI). The low stray magnetic field prevents it from coupling into sensitive signal lines or instrument circuits, which helps maintain signal integrity and measurement accuracy in your lab. -
Q: Do you provide technical drawings or 3D models for integration into our equipment design?
A: Yes, we can provide detailed dimensional drawings (in PDF or DXF format) upon request. For standard models, these are readily available. For fully custom designs, we generate them as part of the engineering process. -
Q: What certifications does the transformer have?
A> Our manufacturing process is certified to ISO 9001:2015 standards, ensuring consistent quality control. The transformer itself can be built to comply with various international standards (e.g., UL, IEC) based on customer requirements. Please specify any necessary certifications for your target market. -
Q: Can you add multiple output taps or windings?
A: Certainly. We frequently produce transformers with dual secondaries, center taps, or multiple voltage taps to power different sections of a piece of equipment. This is a standard customization option. -
Q: What is your shipping and logistics capability?
A: We have extensive export experience and ship from major ports like Shanghai, Tianjin, Guangzhou, and Ningbo. We can arrange door-to-door shipping via air or sea to destinations worldwide, including North America, Europe, Southeast Asia, and beyond.
Jinhua Dika Electrical Equipment Co., Ltd. is a trusted partner for OEMs and laboratory equipment integrators globally. Our annual export value reflects our commitment to international markets and our ability to meet diverse client needs. With a dedicated team of 11-50 skilled professionals, we oversee every step from material sourcing to final testing, ensuring each transformer meets our stringent standards. We invite you to leverage our manufacturing expertise for your next project. Contact us today to discuss your specific 3kVA toroidal transformer requirements, request a detailed quotation, or explore our other power solutions. Let us provide you with a reliable, high-performance component that forms the stable heart of your laboratory equipment.
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