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Help Center250kVA 7.2kV to 120/240V Single Phase Pole Mount Distribution Transformer
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As a dedicated manufacturer with over a decade of experience in power distribution solutions, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our 250kVA single-phase pole mount distribution transformer. Engineered for reliability and efficiency in utility and rural electrification networks, this transformer is designed to step down 7.2kV line voltage to a usable 120/240V supply, making it an ideal choice for serving residential clusters, farms, and small commercial establishments. Our commitment to stringent quality management, evidenced by our ISO 9001 certification, ensures every unit delivers consistent performance under demanding conditions.
The core of this transformer's value lies in its robust construction and design tailored for outdoor durability. We utilize high-grade, low-loss silicon steel laminations for the core and high-conductivity copper or aluminum for the windings, which collectively minimize no-load and load losses. This translates directly into lower operational costs and enhanced energy efficiency over the transformer's long service life. The hermetically sealed, corrugated steel tank is filled with high-quality, purified mineral oil that provides excellent insulation and cooling properties, ensuring stable operation across a wide ambient temperature range.
Key Technical Specifications & Advantages:
- Optimized Efficiency: Designed to meet or exceed industry standards for energy efficiency, reducing electricity waste and total cost of ownership.
- Pole-Mounted Convenience: The compact and secure design allows for easy installation on standard utility poles, saving valuable ground space and reducing installation complexity.
- Superior Protection: Features include a pressure relief device, silica gel breather to control moisture, and robust bushings designed for high dielectric strength and pollution resistance.
- Flexible Configuration: Available with various tap changers (off-circuit) to accommodate slight variations in input voltage, ensuring stable output.
- Low Maintenance: The sealed tank design and durable components result in a product requiring minimal routine maintenance, reducing long-term service costs.
For our business clients, this means a dependable power distribution node that enhances grid stability, reduces line losses, and provides a safe and reliable power source to end-users. Its durability ensures a lower lifetime cost, while its standardized design simplifies integration into existing infrastructure.
| Parameter | Specification |
|---|---|
| Rated Power | 250 kVA |
| High Voltage | 7200 V ± Tap Range |
| Low Voltage | 120/240 V |
| Frequency | 50 Hz or 60 Hz |
| Vector Group | Not applicable (Single Phase) |
| Impedance Voltage | Typically 2-4% (Customizable) |
| Noise Level | ≤ 55 dB(A) (Subject to design) |
Trust in Jinhua Dika is built on a solid foundation of global experience and quality assurance. With an annual export value ranging between US$1-1.5 Million, we have successfully supplied reliable electrical equipment to diverse markets across North America, South America, Europe, Asia, Africa, and Oceania. Our multi-port shipment capability (Shanghai, Tianjin, Guangzhou, Ningbo) ensures flexible and efficient logistics. Backed by a comprehensive quality management system (ISO 9001) and a dedicated team of 11-50 professionals, we guarantee that our 250kVA pole mount transformer is not just a product, but a partnership for reliable power distribution. Contact us today to discuss your project requirements and discover how our transformers can provide a stable and cost-effective solution for your network.
Frequently Asked Questions (FAQ)
-
What are the standard mounting dimensions for this pole mount transformer?
The unit is designed to mount on a standard Class 4 or heavier utility pole. Specific mounting bracket dimensions and weight are provided in the detailed datasheet available upon request. -
Can this transformer be used for both 50Hz and 60Hz power systems?
Yes, the design can be optimized for either 50Hz or 60Hz operation. Please specify your required frequency when inquiring or placing an order. -
What kind of oil is used inside, and what are its environmental properties?
We use high-grade, purified mineral oil with high dielectric strength. Options for biodegradable or less-flammable fluids may be available upon request for specific environmental considerations. -
Are spare parts like bushings and gaskets readily available?
Yes, as the manufacturer, we maintain an inventory of critical spare parts to support maintenance and repair needs, ensuring long-term operational support. -
What is the expected lifespan of this transformer under normal operating conditions?
With proper installation and within specified operational parameters, the transformer has a design life expectancy of 25-30 years or more. -
Do you provide custom voltage ratios or special impedance values?
We have engineering capabilities to customize certain parameters, including voltage ratios and impedance, to meet specific grid requirements. Contact us with your detailed specifications. -
What testing is performed before shipment?
Each transformer undergoes routine tests including resistance measurement, ratio test, no-load and load loss measurement, and dielectric tests to ensure compliance with performance standards. -
What are the packaging and delivery terms?
Transformers are typically shipped in robust, weather-protected wooden crates. We offer flexible delivery terms (FOB, CIF, etc.) from major Chinese ports to suit your supply chain needs.
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