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Home > Electrical & Electronics > Passive Components > Capacitor > Dry-type Transformer 220V to 380V 250 KVA Low Noise Operation

Dry-type Transformer 220V to 380V 250 KVA Low Noise Operation

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Product Spotlights

This 250 KVA dry-type transformer efficiently converts 220V to 380V with exceptionally low noise, ideal for indoor and noise-sensitive environments. Its oil-free design ensures enhanced safety, minimal maintenance, and environmental friendliness. Built with robust, resin-encapsulated coils for reliability and long life, it offers high efficiency to reduce operational costs. Customizable options like IP ratings and tap settings are available to meet specific project needs.

US$ 190 - 260 MOQ: 10 Units

Key Specifications

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Rated Power:

250 KVA

Input Voltage:

220V

Output Voltage:

380V

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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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Rated Power 250 KVA

Input Voltage 220V

Output Voltage 380V

Transformer Type Dry-type (Cast Resin)

Operation Feature Low Noise Operation

Cooling Method AN/AF (Air Natural/Air Forced)

Insulation Class Class F or higher

Protection Level IP00, IP20, IP23 (Optional)

Application Fields Industrial Plants, Commercial Buildings, Renewable Energy

As a professional manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. specializes in providing reliable and efficient power solutions for global markets. Our Dry-type Transformer 220V to 380V 250 KVA is engineered for superior performance, combining robust construction with advanced design to ensure stable voltage conversion and exceptionally quiet operation. This transformer is an ideal choice for applications where noise reduction, safety, and maintenance-free operation are critical priorities.

Core Product Features & Technical Advantages:

Exceptional Low Noise Design: Utilizing high-quality, low-loss amorphous or silicon steel cores and precision-wound coils, this transformer operates at significantly reduced sound levels compared to conventional oil-filled units, making it suitable for noise-sensitive environments like hospitals, schools, and office buildings.
Enhanced Safety & Environmental Friendliness: As a dry-type transformer, it contains no liquid dielectric (oil), eliminating risks of leakage, fire, and environmental contamination. This feature ensures safer installation in indoor locations and reduces fire protection requirements.
High Efficiency & Energy Savings: Optimized design and materials minimize core and copper losses, leading to high operational efficiency. This translates into lower energy consumption and reduced operating costs over the transformer's lifespan.
Robust Construction & Reliability: The coil assembly is vacuum-pressure impregnated (VPI) with high-temperature, flame-retardant epoxy resin, providing excellent mechanical strength, moisture resistance, and protection against harsh environmental conditions.
Easy Installation & Low Maintenance: Dry-type transformers require minimal maintenance as there is no oil to test or filter. Their compact and lightweight design (compared to oil-filled equivalents) simplifies handling and installation, saving time and labor costs.
Wide Application Compatibility: Perfect for stepping up voltage from 220V to 380V, this 250 KVA unit is versatile for various industrial and commercial applications, including machine tools, production lines, HVAC systems, lighting networks, and renewable energy integration.

Detailed Technical Specifications:

Parameter	Specification
Rated Capacity	250 KVA
Primary Voltage	220V
Secondary Voltage	380V
Frequency	50/60 Hz
Insulation Class	Class F (155°C) / Class H (180°C) Optional
Cooling Method	AN/AF (Air Natural/Air Forced)
Noise Level	Low noise design, specific dB level available upon request
Protection Degree (IP)	IP00, IP20, IP23 (Customizable)
Vector Group	Dyn11, Yyn0, or as per customer requirement
Tapping	±2×2.5% or ±5% (Optional)

Benefits for Your Business:

Operational Cost Reduction: High efficiency and low maintenance directly lower your total cost of ownership.
Improved Workspace Comfort: Low noise operation contributes to a better working environment, complying with occupational health standards.
Increased System Reliability: The robust, dry-type construction ensures stable performance and long service life, minimizing unplanned downtime.
Flexible Installation: Can be installed close to the load center, reducing secondary cable losses and saving on cabling costs.
Future-Proof Investment: Compatible with modern, environmentally conscious building standards and green energy initiatives.

Jinhua Dika Electrical Equipment Co., Ltd. backs its products with a strong commitment to quality and customer satisfaction. Our manufacturing processes are guided by a comprehensive ISO 9001 quality management system, ensuring consistent product excellence. With an annual export value ranging between US$1 Million and US$1.5 Million, we have successfully supplied our electrical equipment to diverse markets across North America, South America, Europe, Asia, Africa, and Oceania. Supported by a dedicated team of 11-50 professionals, we offer reliable products shipped from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo. Choose our 250 KVA Dry-type Transformer for a dependable, quiet, and efficient power conversion solution that meets your specific operational needs.

Frequently Asked Questions (FAQ):

What are the main advantages of a dry-type transformer over an oil-filled one?
Dry-type transformers offer enhanced safety (no fire/leakage risks), lower maintenance (no oil monitoring/filtering), environmental friendliness, and suitability for indoor installation. They are also generally quieter and easier to install.
Can this 220V to 380V transformer be used for both step-up and step-down applications?
This specific model is designed as a step-up transformer (220V primary to 380V secondary). For step-down operation (380V to 220V), a different configuration or a dedicated unit would be required. Please consult with us for your specific voltage conversion needs.
How low is the "Low Noise" operation? Can you provide a specific dB(A) value?
The exact noise level depends on the load and specific design configuration. We can provide typical sound power or pressure level data upon request to ensure it meets your project's acoustic requirements.
What is the expected lifespan of this dry-type transformer?
With proper installation and operation within rated parameters, our dry-type transformers are designed for a long service life, often exceeding 20-30 years. The lifespan is influenced by factors like ambient temperature, load profile, and maintenance practices.
Are custom modifications available, such as different IP protection levels or special voltages?
Yes, as a manufacturer, we offer customization. Parameters like IP rating (e.g., IP23 for outdoor/dust-moisture protection), specific voltage ratios, tap settings, and enclosure types can often be tailored to your project specifications.
What are the installation requirements for this transformer?
It requires a clean, dry, well-ventilated indoor area with sufficient space around it for airflow (as per cooling class AN/AF). The foundation should be level and capable of supporting its weight. Detailed installation instructions are provided with the product.
Do you provide technical support and after-sales service?
Yes, we offer comprehensive technical support for selection, installation guidance, and troubleshooting. Our after-sales service includes warranty support and access to spare parts when needed.
What certifications does this transformer comply with?
Our manufacturing facility operates under ISO 9001 among other quality standards. Specific product certifications (like CE for Europe) can be discussed and provided based on the target market and customer requirements.