15kVA Completely self-protected(CSP) Single Phase Pole Mounted Transformer
NPC ELECTRIC the production of 15 kVA Completely Self-Protected (CSP) single-phase overhead transformers, meticulously engineered to meet international standards such as IEEE C57.12.00, IEEE C57.12.20, DOE-2016 Efficiency, CSA C2.1, and CSA C2.2. These certifications underscore to delivery products that are both safe and reliable. NPC electric transformers are designed to comply with the DOE 2016 efficiency standards, ensuring optimal energy efficiency and reduced operational costs. Understanding the diverse needs of our clients, NPC Electric offers a wide range of customizable voltage levels to suit various applications. Perfect manufacturing processes enable us to maintain short production cycles, ensuring timely delivery.
- Primary Voltage Ratings 2.4-34.5kV
- Secondary Voltage Ratings 480-240/240-120 or customized
- H.V. Tap Range ± 2×2.5% HV taps or others
- Type Completely self-protected(CSP) Type
- BIL 30-150kV
- Standards IEEE, ANSI, CSA, DOE
- Application Ultility & distributionetc
- Power Rating 15kVA
- Certificate UL/cUL, CSA, IEEE
- Cooling Method ONAN
- Oil Minerial Oil or FR3
- Opeartion Step Down
Technical Specifications
Customization Optional
Packing and Shipping
Manufacturer Test
Routine Testing
Application
Technical Specifications
15kVA Completely self-protected(CSP) Single Phase Pole Mounted Transformer
Technical Specifications
Accessories
| Rated Power | 15 kVA |
| Rating Primary Voltage | 12.4-34.5kV |
| Secondary Voltage | 480-240V 240-120V 277V Customized |
| Frequency | 50/60Hz |
| Vector Group | Ii0,Ii6 |
| 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 |
| Color | ANSI 70 Light gray/Munsell 7GY3.29/1.5 or customized etc |
| Tank material | Mild Steel, 304 Stainless Steel |
| Insulating Oil Weight | 30 kg |
| Total Weight | 210 kg |
| Outline Dimensions（W×D×H） | 520×565×905 (mm) |
| Lifting Lug |
| Tap Changer |
| Pressure Relief Valve |
| Tank Cover and clamp |
| L.V Bushing |
| HV Bushing |
| Ground Strap |
| Nameplate |
| Non-PCB decal |
| High Voltage Warning Signs |
| Support lug |
| Oil fill valve |
| Surge arrester |
| Secondary breaker |
| Weak link |
Customization Optional
15kVA Completely self-protected(CSP) Single Phase Pole Mounted Transformer
NPC ELECTRIC's Completely Self-Protected (CSP) Single-Phase Pole-Mounted Transformers offer a range of customizable features to meet diverse operational needs.
The optional specifications for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer include various customization options to meet specific installation and operational requirements. These options may include different input voltage levels, such as 11kV or 13.8kV, depending on the local power grid specifications.
Output voltage can be customized to meet the needs of the application, typically offering 230V or 400V configurations.
Additionally, users can opt for enhanced protection features, such as temperature monitoring or advanced surge protection, to increase the transformer's resilience in extreme conditions.
The optional specifications for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer include various customization options to meet specific installation and operational requirements. These options may include different input voltage levels, such as 11kV or 13.8kV, depending on the local power grid specifications.
Output voltage can be customized to meet the needs of the application, typically offering 230V or 400V configurations.
Additionally, users can opt for enhanced protection features, such as temperature monitoring or advanced surge protection, to increase the transformer's resilience in extreme conditions.
For areas with harsh environmental conditions, higher-grade weatherproof and corrosion-resistant coatings or insulation materials can be selected to ensure long-term durability.
Other options may include remote monitoring capabilities, allowing real-time tracking of transformer performance and diagnostics, ensuring efficient operation and early fault detection.
These optional specifications provide flexibility to adapt the transformer to a wide range of applications and environments.
Other options may include remote monitoring capabilities, allowing real-time tracking of transformer performance and diagnostics, ensuring efficient operation and early fault detection.
These optional specifications provide flexibility to adapt the transformer to a wide range of applications and environments.
Packing and Shipping
15kVA Completely self-protected(CSP) Single Phase Pole Mounted Transformer
NPC ELECTRIC single-phase transformers are designed to be securely packaged for sea freight transport, ensuring safe delivery across long distances.
For this purpose, the packing and shipping process for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer involves several carefully planned steps to ensure the product’s safety and integrity throughout transit.
Packaging: The transformer is first carefully inspected and cleaned before being placed in a robust, custom-sized wooden crate or steel frame for transport. To protect it from external damage, the transformer is surrounded by high-quality shock-absorbing materials such as foam, bubble wrap, and wooden blocks. These materials prevent impacts, vibrations, and rough handling from affecting the transformer during transportation. Additionally, the transformer is treated with an anti-corrosion coating to protect it from moisture and environmental factors.
Sealing and Labeling: After the transformer is packed, the crate or frame is securely sealed to prevent any exposure to external elements. The packaging is clearly labeled with essential shipping information, including handling instructions such as "Keep Dry," "Fragile," and "This Side Up." The product’s details, such as model number, serial number, batch information, and the destination address, are also clearly marked for easy identification and tracking.
Loading and Transport: The packaged transformer is carefully loaded onto a pallet or skid to ensure stability during transit. Depending on the destination, the transformer is shipped using the most appropriate mode of transport—either road, rail, or sea freight. If required, a suitable transport vehicle with proper safety measures is selected to accommodate the size and weight of the transformer.
Shipping and Tracking: Throughout the shipping process, the transformer is tracked using real-time monitoring systems, allowing both the manufacturer and the customer to stay updated on its status and location. This helps ensure timely delivery and minimizes the risk of delays or damages.
Arrival and Unpacking: Upon arrival at the destination, the packaging is carefully opened by the receiving team, and a final inspection is conducted to confirm the transformer’s condition. Any documentation, such as the shipping receipt, factory acceptance test reports, and user manuals, are handed over to the customer.
By following this well-organized packing and shipping process, the 15kVA CSP Single Phase Pole Mounted Transformer is guaranteed to arrive safely, ready for installation and operation.
For this purpose, the packing and shipping process for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer involves several carefully planned steps to ensure the product’s safety and integrity throughout transit.
Packaging: The transformer is first carefully inspected and cleaned before being placed in a robust, custom-sized wooden crate or steel frame for transport. To protect it from external damage, the transformer is surrounded by high-quality shock-absorbing materials such as foam, bubble wrap, and wooden blocks. These materials prevent impacts, vibrations, and rough handling from affecting the transformer during transportation. Additionally, the transformer is treated with an anti-corrosion coating to protect it from moisture and environmental factors.
Sealing and Labeling: After the transformer is packed, the crate or frame is securely sealed to prevent any exposure to external elements. The packaging is clearly labeled with essential shipping information, including handling instructions such as "Keep Dry," "Fragile," and "This Side Up." The product’s details, such as model number, serial number, batch information, and the destination address, are also clearly marked for easy identification and tracking.
Loading and Transport: The packaged transformer is carefully loaded onto a pallet or skid to ensure stability during transit. Depending on the destination, the transformer is shipped using the most appropriate mode of transport—either road, rail, or sea freight. If required, a suitable transport vehicle with proper safety measures is selected to accommodate the size and weight of the transformer.
Shipping and Tracking: Throughout the shipping process, the transformer is tracked using real-time monitoring systems, allowing both the manufacturer and the customer to stay updated on its status and location. This helps ensure timely delivery and minimizes the risk of delays or damages.
Arrival and Unpacking: Upon arrival at the destination, the packaging is carefully opened by the receiving team, and a final inspection is conducted to confirm the transformer’s condition. Any documentation, such as the shipping receipt, factory acceptance test reports, and user manuals, are handed over to the customer.
By following this well-organized packing and shipping process, the 15kVA CSP Single Phase Pole Mounted Transformer is guaranteed to arrive safely, ready for installation and operation.
32
32 years of industry experience
Manufacturer Test
15kVA Completely self-protected(CSP) Single Phase Pole Mounted Transformer
Progress Test
NPC Electric manufactures pad-mounted transformers have the strict quality control.
The progress test for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer is conducted during the manufacturing process to ensure the transformer meets all technical and safety specifications. This includes checking the transformer’s electrical performance, such as verifying the input and output voltage levels, load capacity, and protection functions like overcurrent, short-circuit, and overload protections. Additionally, insulation resistance tests and dielectric strength tests are performed to ensure the transformer’s reliability and safety under operational conditions.
The progress test also verifies the proper functioning of the self-protection system, ensuring it can effectively disconnect in the event of a fault.
These tests help confirm that the transformer is built to the highest quality standards and is ready for final factory acceptance testing and delivery.
Design Tests
All transformer will be test after finished the production, test items as below:
♦ Insulation Power Factor
♦ Ratio, Polarity, and Phase Relation
♦ 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)
♦ Polarity, 1-Ph
♦ Excitation & No-Load Loss (Rated Voltage)
♦ Applied Voltage
♦ Induced Voltage
♦ Lightning Impulse
♦ Insulation Resistance (Rated Voltage)
♦ Temperature Rise
♦ Dielectric Withstand (Hipot)
Transformer Factory Acceptance Test
NPC Electric will have tests made for quality control by the manufacturer on every device or representative samples, or on parts or materials as required, to verify during production that the product meets the design specifications.
The Transformer Factory Acceptance Test (FAT) for the 15kVA Completely Self-Protected (CSP) Single Phase Pole Mounted Transformer is a comprehensive inspection conducted before the transformer is shipped to the customer. This test ensures that the transformer meets all design and technical specifications. It includes verifying electrical performance such as input and output voltage, load capacity, and the operation of protection mechanisms like overcurrent, short-circuit, and overload protection. Additionally, insulation resistance and dielectric strength tests are performed to ensure the transformer’s reliability and safety. The FAT also checks for the correct functionality of the self-protection system, confirming that it will safely disconnect in case of faults. Successful completion of the FAT ensures the transformer is fully operational, meets quality standards, and is ready for deployment.
Routine Test - Polarity 1-Ph
Purpose of Testing
The purpose of testing the polarity of a single-phase transformer is to ensure that the primary and secondary windings are correctly oriented, preventing issues like improper phase connection. It also verifies that the transformer operates safely and efficiently in the intended electrical system.
Testing Equipment
Test equipment: Polarity Tester (e.g. Megger, Hioki, etc.)
Voltage source: usually 500 V, 1000 V or customized as needed
Environmental monitoring: Temperature and humidity meter (records ambient temperature and humidity)
Voltage source: usually 500 V, 1000 V or customized as needed
Environmental monitoring: Temperature and humidity meter (records ambient temperature and humidity)
Pre-Test Preparation
Disconnect the device from the power supply and ensure that it is properly grounded and discharged.
Check the connection terminals and wiring to ensure that there is no looseness or contamination.
Test under suitable environmental conditions: relative humidity less than 75% and no rain (recommended temperature: 20-30°C).
Check the connection terminals and wiring to ensure that there is no looseness or contamination.
Test under suitable environmental conditions: relative humidity less than 75% and no rain (recommended temperature: 20-30°C).
Test Progress
Connect the Test Instrument:
Connect the test equipment to the bushing or terminal of the device under test and ensure proper grounding.
Apply Test Voltage:
Select the appropriate test voltage according to the rated voltage of the device. For single-phase systems, the applied voltage should comply with the equipment specifications (such as 220V or 380V, etc.).
Connect the test equipment to the bushing or terminal of the device under test and ensure proper grounding.
Apply Test Voltage:
Select the appropriate test voltage according to the rated voltage of the device. For single-phase systems, the applied voltage should comply with the equipment specifications (such as 220V or 380V, etc.).
Measure and Record
Start the test and record the following parameters:
Phase sequence: Confirm whether the phase sequence of the power supply is correct.
Polarity: Check whether the wiring meets the predetermined polarity (positive and negative terminals are connected correctly).
Voltage: The actual voltage value during the test.
Phase sequence: Confirm whether the phase sequence of the power supply is correct.
Polarity: Check whether the wiring meets the predetermined polarity (positive and negative terminals are connected correctly).
Voltage: The actual voltage value during the test.
Temperature Correction
Measure different wiring points (such as input and output) for comparative analysis to ensure that the electrical polarity is consistent.
Repeat Testing (if necessary)
If necessary, correct the measured parameters to the reference temperature (usually 20°C) to ensure the accuracy of the test results.
Evaluation Criteria (Reference)
Correct polarity: The wiring meets the expected polarity requirements and meets the standard. Reverse polarity: If reverse polarity occurs, it should be corrected immediately and retested. Polarity uncertainty: If there is any uncertainty, further check the power supply and wiring configuration.
*These comprehensive tests ensure that each transformer meets performance standards and operates
reliably under various conditions.
Application
Ultility & distributionetc
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
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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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