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Help CenterSingle Phase Pad-Mounted Transformer 50Kva 75Kva 100Kva 167Kva 250Kva 333Kva American Voltage Rating
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As a leading manufacturer with over a decade of expertise, Jinhua Dika Electrical Equipment Co., Ltd. specializes in producing reliable and efficient electrical distribution solutions for global markets. Our Single Phase Pad-Mounted Transformers are engineered to meet the rigorous demands of the American electrical grid, offering a robust and secure method for stepping down voltage for residential, commercial, and light industrial applications. Designed for outdoor installation on concrete pads, these units combine durability with operational efficiency, ensuring a stable power supply in diverse environments from suburban neighborhoods to remote facilities.
Our transformers are built with a focus on longevity, safety, and performance. The core and coil assembly is meticulously constructed and immersed in high-grade dielectric oil within a sealed, weatherproof tank. This design provides excellent cooling and insulation, protecting the internal components from environmental stressors. The galvanized steel enclosure is treated for superior corrosion resistance, making it suitable for coastal or high-humidity areas. We offer a versatile range of standard capacities to match various load requirements.
Key Features & Technical Advantages:
- American Voltage Compatibility: Precisely wound for standard American secondary distribution voltages such as 120/240V or 240/480V, ensuring seamless integration into existing infrastructure.
- Robust Pad-Mounted Design: The compact, self-contained enclosure eliminates the need for pole mounting, enhancing safety by keeping live components enclosed and grounded.
- High-Efficiency Core Design: Utilizes high-quality, low-loss core steel to minimize no-load and load losses, contributing to lower operational costs and improved energy savings over the transformer's lifespan.
- Tamper-Resistant Security: Equipped with robust locking mechanisms and tamper-proof hardware to prevent unauthorized access, a critical feature for public safety.
- Low Maintenance Operation: The sealed tank design and durable components result in a virtually maintenance-free operation under normal conditions, reducing long-term ownership costs.
- Thermal Management: The oil-immersed, self-cooled (ONAN) design effectively dissipates heat, ensuring stable performance even during peak load periods.
Standard Technical Specifications:
| Model Parameter | 50 kVA | 75 kVA | 100 kVA | 167 kVA | 250 kVA | 333 kVA |
|---|---|---|---|---|---|---|
| Rated Capacity (kVA) | 50 | 75 | 100 | 167 | 250 | 333 |
| High Voltage (HV) Range* | 2.4kV, 4.16kV, 7.2kV, 13.2kV, etc. (Customizable) | |||||
| Low Voltage (LV) | 120/240V or 240/480V (American Standard) | |||||
| Impulse Level (BIL) | Standard 95kV BIL on LV side; HV BIL available upon request | |||||
| Noise Level (dB) | Designed to meet or exceed NEMA ST-20 standards | |||||
| Approx. Weight (kg) | ~450 | ~550 | ~700 | ~950 | ~1300 | ~1600 |
*Specific HV ratings are configured based on customer's distribution system requirements.
Benefits for Your Project:
- Reliability: Ensures consistent voltage delivery, protecting sensitive downstream equipment from fluctuations.
- Space Efficiency: The pad-mounted footprint is ideal for areas where overhead lines are impractical or visually undesirable.
- Safety: Fully enclosed design significantly reduces the risk of public contact with energized parts.
- Scalability: With six standard ratings from 50kVA to 333kVA, you can select the perfect unit for current needs with options for future load growth.
- Global Compliance: Manufactured in facilities adhering to stringent quality management systems, with components selected for compatibility with North American utility practices.
Backed by Jinhua Dika's commitment to quality, evidenced by our comprehensive quality management certifications and an annual export value ranging between US$1 Million to US$1.5 Million, you can trust in the performance and durability of our transformers. With a dedicated team of 11-50 professionals and a proven track record supplying to markets across North America, South America, Eastern Europe, Southeast Asia, and beyond, we understand the specific needs of international clients. Our products are shipped from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring efficient logistics. Choosing our Single Phase Pad-Mounted Transformer means investing in a product built for reliability, backed by a manufacturer with global reach and a solid reputation for quality. Contact us today to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What are the typical primary (high voltage) ratings available for these transformers?
A: While designed for American secondary voltages, the primary side can be customized to match common distribution voltages such as 2.4kV, 4.16kV, 7.2kV, 13.2kV, and others. Please provide your system's specific voltage requirements for an accurate configuration.
Q2: Are the windings made of copper or aluminum?
A: Both options are available. Copper windings offer lower resistance and potentially higher efficiency, while aluminum windings provide a cost-effective alternative. We can advise on the best choice based on your budget and performance priorities.
Q3: What kind of protective devices are included?
A: Standard features include a pressure relief device to vent internal gas buildup safely. Additional accessories like lightning arresters, fused cutouts, or protective relays can be added based on your specifications.
Q4: Is the transformer oil environmentally friendly?
A: We use high-quality, refined mineral oil that meets industry standards for dielectric strength and cooling. For projects with specific environmental requirements, inquiries about alternative fluids (like biodegradable oil) can be discussed.
Q5: What is the expected delivery lead time for a standard model?
A: Lead times vary based on model, configuration, and order quantity. Generally, for standard specifications, production can be completed within 4-6 weeks after order confirmation, plus shipping time from our designated ports.
Q6: Do you provide installation guidance or technical support?
A: Yes, we provide detailed installation manuals, nameplate diagrams, and technical data sheets with each shipment. Our engineering team is also available for pre-installation consultations to ensure a smooth integration into your system.
Q7: Can these transformers be used in areas with extreme temperatures?
A: Absolutely. The design accounts for a wide operational temperature range. The dielectric oil and insulation systems are selected to perform reliably in both high and low ambient temperature conditions common across North America and other export markets.
Q8: Are spare parts readily available?
A: We maintain an inventory of common spare parts such as bushings, gaskets, and pressure relief devices. Availability ensures quicker support and minimizes downtime for our clients.
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