1600kVA Dry Type Transformer
1600kVA dry-type transformer is an efficient and reliable power equipment designed to provide a stable power supply. Its rated capacity is 1600kVA, which is suitable for the power needs of various industrial and commercial sites. The transformer adopts advanced dry insulation technology, which has higher safety and durability, and avoids the fire hazards that may be caused by oil-immersed transformers. In addition, the low-noise operation and environmentally friendly design of the equipment can effectively reduce operating costs and reduce environmental impact.
- Primary Voltage Ratings 34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2, 24.94, 26.25, 33 or others
- Secondary Voltage Ratings 480/277V,400/230V,380/220V or customized
- H.V. Tap Range ± 2×2.5% HV taps or others
- Type Dry type transformer
- BIL 30/95kV
- Standards IEEE, ANSI, NEMA,IEC,GB
- Application residential power distribution, power systems and distribution networks, office buildings, transportation facilities，theaters, hospitals, hotels etc
- Power Rating 1600kVA
- Certificate UL ,CESI
- Cooling Method OA/OF
- Opeartion Step Down & Step Up
Technical Specifications
Customization Optional
Packing and Shipping
Manufacturer Test
Routine Testing
Application
Technical Specifications
1600kVA Dry Type Transformer
Technical Specifications
Accessories
| Technical Specifications | ||
| Rated Power | 1600 kVA | |
| Rating Primary Voltage | 2.4-34.5kV | |
| Secondary Voltage | 480/277V 400/230V 380/220V Customized |
|
| Frequency | 50/60Hz | |
| Vector Group | Dyn11,Yyn0,Dyn5 | |
| Winding Material | Aluminum/Copper | |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized | |
| Impedance Voltage | Nominal 2% or Customized 1.1-5.75% | |
| Altitude | ≤1,000m or Customized | |
| Enclosure material | 304 Stainless Steel | |
| Total Weight | 10000 kg | |
| Outline Dimensions（L×W×H）in. | 2600×1980×2820（mm) | |
| HV Bushing |
| LV Bushing |
| Tap changer connector |
| Lifting hook for complete transformer |
| Name plate |
Customization Optional
1600kVA Dry Type Transformer
The 1600kVA Dry-Type Transformer from NPC Electric is designed for efficient and reliable power distribution in a wide range of applications. Key features include robust, high-quality insulation materials, ensuring safe and long-lasting performance without the need for liquid insulation. Its compact, space-saving design makes it ideal for urban environments, while its low maintenance requirements and excellent thermal performance enhance operational efficiency. The transformer is built to withstand harsh operating conditions, providing stable, uninterrupted power supply with minimal environmental impact.
Packing and Shipping
1600kVA Dry Type Transformer
The Packing and Shipping process for the NPC Electric 1600kVA Dry-Type Transformer is a critical step that ensures the transformer is safely transported and delivered to its destination in optimal condition. First, the transformer is thoroughly inspected and cleaned to remove any debris or foreign materials that may have accumulated during the manufacturing process. Once ready, it is securely packed using durable materials, such as heavy-duty wooden crates or metal frames, designed to provide robust protection during transit. The packing includes cushioning materials like foam or rubber pads to absorb shocks and vibrations, ensuring that delicate components such as bushings, terminals, and the cooling system are protected from impact. The transformer is then fastened to a sturdy wooden or metal pallet to prevent movement during handling and transport.
Each transformer is clearly labeled with relevant information, including model number, weight, and handling instructions, to ensure proper identification and care throughout the shipping process. Depending on the shipping method, the transformer may be wrapped in weather-resistant plastic or shrink-wrapped to protect it from environmental factors such as moisture, dust, or dirt. For international shipments, the transformer is also accompanied by the necessary shipping documents, including customs clearance paperwork, safety certificates, and inspection reports.
During transportation, the transformer is carefully handled using specialized lifting equipment to avoid any damage, and it is often transported by road, sea, or rail, depending on the destination and urgency. Upon arrival at the destination, the transformer is unloaded with caution and undergoes another inspection to verify that no damage occurred during shipping. Once the transformer passes the final inspection, it is ready for installation. The packing and shipping process ensures that the NPC Electric 1600kVA Dry-Type Transformer reaches its destination safely and is ready for operation without issues.
Each transformer is clearly labeled with relevant information, including model number, weight, and handling instructions, to ensure proper identification and care throughout the shipping process. Depending on the shipping method, the transformer may be wrapped in weather-resistant plastic or shrink-wrapped to protect it from environmental factors such as moisture, dust, or dirt. For international shipments, the transformer is also accompanied by the necessary shipping documents, including customs clearance paperwork, safety certificates, and inspection reports.
During transportation, the transformer is carefully handled using specialized lifting equipment to avoid any damage, and it is often transported by road, sea, or rail, depending on the destination and urgency. Upon arrival at the destination, the transformer is unloaded with caution and undergoes another inspection to verify that no damage occurred during shipping. Once the transformer passes the final inspection, it is ready for installation. The packing and shipping process ensures that the NPC Electric 1600kVA Dry-Type Transformer reaches its destination safely and is ready for operation without issues.
32
32 years of industry experience
Manufacturer Test
1600kVA Dry Type Transformer
Progress Test
NPC Electric manufactures high-quality three-phase dry-type transformers under strict quality control protocols. The Progress Test for the NPC Electric 1600kVA Dry-Type Transformer involves a series of essential checks to ensure the transformer's performance and safety standards are met before delivery. The test starts with an insulation resistance test to verify the integrity of the insulation system. Next, the winding resistance test checks for any irregularities in the primary and secondary windings. The dielectric withstand test ensures the transformer can handle overvoltage conditions. The temperature rise test is conducted to monitor the temperature during full-load operation, ensuring it remains within safe limits. The load test evaluates the transformer’s performance under various load conditions, while the short-circuit impedance test ensures it can safely handle fault situations. A noise level test ensures the transformer operates within acceptable sound limits, and a mechanical integrity test checks the structural stability of all components. Lastly, a visual inspection is carried out to confirm proper assembly. Upon successful completion of these tests, a test report is prepared to certify the transformer’s compliance with required standard.
Design Tests
All transformer will be test after finished the production, test items as below:
♦ Insulation Power Factor
♦ Winding Resistance
♦ Impulse Tests
♦ On load Loss Test
♦ No Load Loss Test
♦ Leak Test
♦ DC Insulation Resistance Test
♦ Transformer Turns Ratio/TTR (All Tap Voltages)
♦ Impedance Voltage & Load Loss (Rated Voltage)
♦ Excitation & No-Load Loss (Rated Voltage)
♦ Applied Voltage
♦ Induced Voltage
♦ Lightning Impulse
♦ Insulation Resistance (Rated Voltage)
♦ Temperature Rise
Transformer Factory Acceptance Test
NPC Electric conducts rigorous quality control testing on every transformer or representative samples, as well as on specific components and materials, to ensure compliance with design specifications throughout the production process.
The Factory Acceptance Test (FAT) for a 1600kVA three-phase dry-type transformer is a critical step performed before shipment to verify that the unit meets all applicable standards and delivers optimal performance. The FAT includes the following key procedures:
Visual Inspection: Evaluates the transformer’s physical condition, including the enclosure, terminals, and labeling, to ensure conformance with design and safety requirements.
Electrical Testing: Involves measuring winding resistance, insulation resistance, and performing turns ratio tests to validate electrical integrity and functionality.
Dielectric Strength Test: Applies high voltage across the insulation system to ensure it can endure both normal and transient operating voltages without failure.
Load Testing: Simulates real-world operating conditions to assess the transformer’s voltage regulation, temperature rise, and overall efficiency under load.
Protection Device Testing: Verifies the proper operation of integrated protective components such as thermal sensors, temperature relays, and tap changers (if applicable).
Routine Test - DC Insulation Resistance Test
Purpose of Testing
The purpose of DC insulation resistance testing is to measure the insulation resistance of a device by applying a DC voltage, thereby evaluating the health of the insulation material and the voltage withstand capability of the electrical device. This test helps detect potential insulation aging, moisture or damage, preventing electrical failures in the device.
Testing Equipment
Insulation resistance tester (e.g. Megger, Fluke, Hioki, Klein Tools, etc.)
Voltage source (usually 500V, 1000V, 2500V, or customized according to customer requirements)
Temperature and humidity meter (used to record the ambient temperature and humidity during the test to ensure that the test conditions meet the standard requirements.)
Voltage source (usually 500V, 1000V, 2500V, or customized according to customer requirements)
Temperature and humidity meter (used to record the ambient temperature and humidity during the test to ensure that the test conditions meet the standard requirements.)
Pre-Test Preparation
Make sure the device is properly grounded and fully discharged to prevent residual charge in the device from affecting the test results.
Perform the test under suitable environmental conditions. It is recommended to have a relative humidity below 75%, no rain, and a temperature range of 20-30°C to avoid moisture or temperature fluctuations affecting the test results.
Perform the test under suitable environmental conditions. It is recommended to have a relative humidity below 75%, no rain, and a temperature range of 20-30°C to avoid moisture or temperature fluctuations affecting the test results.
Test Progress
Connect the Test Instrument:
Connect an insulation resistance tester to the high voltage terminal of the device under test and to ground.
Apply Test Voltage:
Select an appropriate test voltage based on the rated voltage of the equipment .
Connect an insulation resistance tester to the high voltage terminal of the device under test and to ground.
Apply Test Voltage:
Select an appropriate test voltage based on the rated voltage of the equipment .
Measure and Record
Start the test and record the following parameters:
Insulation resistance value (MΩ)
Applied voltage
Ambient temperature and humidity during testing
Insulation resistance value (MΩ)
Applied voltage
Ambient temperature and humidity during testing
Temperature Correction
The measured insulation resistance values are corrected to a reference temperature (usually 20°C) for accurate evaluation.
Repeat Testing (if necessary)
Measure different windings (high voltage, medium voltage, low voltage) or each bushing separately, and conduct comparative analysis to ensure the insulation status of all parts.
Evaluation Criteria (Reference)
nsulation resistance ≥ 1000 MΩ (excellent)
500 MΩ ≤ Insulation resistance < 1000 MΩ (good)
100 MΩ ≤ Insulation resistance < 500 MΩ
Insulation resistance < 100 MΩ
500 MΩ ≤ Insulation resistance < 1000 MΩ (good)
100 MΩ ≤ Insulation resistance < 500 MΩ
Insulation resistance < 100 MΩ
Test standard
IEEE C57.12.01 & IEEE C57.12.91 (Dry-Type)
*These comprehensive tests ensure that each transformer meets performance standards and operates
reliably under various conditions.
Application
residential power distribution, power systems and distribution networks, office buildings, transportation facilities，theaters, hospitals, hotels etc
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
Product Packaging
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What is a Transformer?A transformer is an electrical device used to change the voltage of alternating current (AC). It works on the principle of electromagnetic induction, converting high-voltage current into low-voltage current or low-voltage current into high-voltage current. Transformers are widely used in power transmission, distribution systems, and various electronic devices.
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What are the main uses of a transformer?The main use of a transformer is voltage conversion. Transformers are used in power transmission systems to help transfer electricity from power plants to consumers. In addition, transformers are also used in electronic devices such as chargers, televisions, power adapters, etc., to adjust the voltage to meet the requirements of different devices.
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Do you have UL listed?Yes, our transformer has UL listed. We have exported to America many pad mounted transformer,substation transformer and HV.
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