1000kVA Three Phase Pad Mounted Transformer
The 1000kVA three-phase pad transformer is an efficient and reliable power transformer designed for high-load applications such as large commercial, industrial and distribution systems. The transformer has a high power capacity of 1000kVA and can stably provide continuous power supply for three-phase power systems to meet large-scale power needs. With a rugged and durable casing and protective design, it is suitable for operation in various outdoor environments and can effectively resist adverse weather conditions.
- 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 208GrdY/120;416GrdY/240 or Customized
- H.V. Tap Range ± 2×2.5% HV taps or others
- Type Loop Feed or Radial Feed
- BIL 30/95kV
- Standards ANSI/IEEE, CSA/CAN, DOE
- Application BESS, Data center, Industry, Renewable energy, EV charging, Utility
- Power Rating 1000kVA
- Certificate UL, cUL, CSA, SGS
- Cooling Method ONAN, ONAN/ONAF, KNAN, KNAN/KNAF
- Oil Minerial Oil or FR3
- Opeartion Step Down & Step Up
Technical Specifications
Customization Optional
Packing and Shipping
Manufacturer Test
Routine Testing
Application
Technical Specifications
1000kVA Three Phase Pad Mounted Transformer
Technical Specifications
Accessories
| Rated Power | 1000 kVA |
| Rating Primary Voltage | 4.16-34.5kV or customized |
| Secondary Voltage | 480GrdY/277 208GrdY/120 400GrdY/230 Customized（208Y/120 V to 4,160 V） |
| Frequency | 50/60Hz |
| Vector Group | Dyn1/Yyn0/Dyn11/Dyn5 |
| Winding Material | Aluminum/Copper |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized |
| Impedance Voltage | Nominal 3.5% 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 | 650 kg |
| Total Weight | 3235 kg |
| Outline Dimensions（L×W×H）in. | 1854×1549×1651（mm） |
| Lifting Lug | ELSP Fuse |
| Hinged Door | BAY-O-NET Fuse |
| Parking Bracket | Tap Changer |
| Tank Cover | Oil Level Gauge |
| L.V Bushing (4-Hole ) | Pressure Relief Valve |
| Two/Four Position Load break Switch | Vacuum Pressure Gauge |
| HV Grounding Copper Bar | Terminal Block |
| Temperature Indicator | Door Handle |
| H.V Bushing Well(15kV) | Ground Strap |
| Grounding Copper Bar | Nameplate |
| 1"'Drain Valve With 3/8" Sampler | IR Window |
| 1" Upper Fill Valve Filter Press Connection | Terminal Box |
| Non-PCB decal | High Voltage Warning Signs |
Customization Optional
1000kVA Three Phase Pad Mounted Transformer
NPC ELECTRIC transformers offer pad mounted transformer a wide range of optional features to meet the diverse needs of electrical systems.
The optional specifications of 1000kVA three-phase ground transformers usually include multiple aspects to meet different application requirements.
Common options include different rated voltages (such as the voltage levels of the high-voltage and low-voltage sides), cooling methods (such as oil-immersed or dry-type transformers), insulation levels (such as Class A or Class B), and wiring methods (star or triangle connection).
In addition, you can also choose casing materials that are waterproof, dustproof, and corrosion-resistant to meet the requirements of use in harsh environments.
The optional specifications of 1000kVA three-phase ground transformers usually include multiple aspects to meet different application requirements.
Common options include different rated voltages (such as the voltage levels of the high-voltage and low-voltage sides), cooling methods (such as oil-immersed or dry-type transformers), insulation levels (such as Class A or Class B), and wiring methods (star or triangle connection).
In addition, you can also choose casing materials that are waterproof, dustproof, and corrosion-resistant to meet the requirements of use in harsh environments.
The transformer's noise control design, overload protection, short-circuit protection, and intelligent monitoring functions (such as remote monitoring and alarm systems) are also common options.
These optional specifications can be customized according to specific needs to ensure the stable operation and safety of the transformer.
With these flexible options, we ensure that our transformers can be customized for specific applications, environments, and safety standards, offering long-term reliability and performance.
These optional specifications can be customized according to specific needs to ensure the stable operation and safety of the transformer.
With these flexible options, we ensure that our transformers can be customized for specific applications, environments, and safety standards, offering long-term reliability and performance.
Packing and Shipping
1000kVA Three Phase Pad Mounted Transformer
NPC ELECTRIC three-phase transformers are designed to be securely packaged for sea freight transport, ensuring safe delivery across long distances. For this purpose, The packaging and transportation methods of 1000kVA three-phase ground transformers must follow strict standards to ensure that the transformer is not damaged during transportation and maintains its performance and safety. The basic standards usually include the following aspects:
Packing materials: Transformers are usually packaged in sturdy wooden boxes or steel frames, and the outer layer is covered with waterproof and moisture-proof materials such as plastic film or tarpaulin to prevent moisture and humidity from invading. The lining can be made of foam, wood or other impact-resistant materials to reduce vibration and impact during transportation.
Marking and labeling: The packaging should clearly indicate the model, specification, weight, transportation requirements (such as "handle with care" or "waterproof") of the transformer, and the transportation direction mark to avoid errors when handling during transportation.
Fixation and support: During transportation, the transformer needs to be fixed on the transportation equipment to avoid damage to the equipment due to bumps, vibrations or tilting. Generally, steel straps or other fixing devices are used to ensure that it is firmly fixed in the pallet or container.
Transportation method: It is usually transported by road, rail or sea. The transformer should be properly packaged and reinforced according to the characteristics of the transportation method to ensure that it will not shift or be damaged during long-term transportation. When transported by sea, additional anti-corrosion measures may be required.
Environmental control: Avoid high temperatures, low temperatures, strong sunlight exposure or extreme weather conditions during transportation. Special attention should be paid to prevent moisture, dust or other contaminants from entering the transformer during transportation.
By following these basic packaging and transportation standards, you can ensure that the 1000kVA three-phase ground transformer is still in good operating condition when it arrives at its final destination and can be put into use smoothly.
Packing materials: Transformers are usually packaged in sturdy wooden boxes or steel frames, and the outer layer is covered with waterproof and moisture-proof materials such as plastic film or tarpaulin to prevent moisture and humidity from invading. The lining can be made of foam, wood or other impact-resistant materials to reduce vibration and impact during transportation.
Marking and labeling: The packaging should clearly indicate the model, specification, weight, transportation requirements (such as "handle with care" or "waterproof") of the transformer, and the transportation direction mark to avoid errors when handling during transportation.
Fixation and support: During transportation, the transformer needs to be fixed on the transportation equipment to avoid damage to the equipment due to bumps, vibrations or tilting. Generally, steel straps or other fixing devices are used to ensure that it is firmly fixed in the pallet or container.
Transportation method: It is usually transported by road, rail or sea. The transformer should be properly packaged and reinforced according to the characteristics of the transportation method to ensure that it will not shift or be damaged during long-term transportation. When transported by sea, additional anti-corrosion measures may be required.
Environmental control: Avoid high temperatures, low temperatures, strong sunlight exposure or extreme weather conditions during transportation. Special attention should be paid to prevent moisture, dust or other contaminants from entering the transformer during transportation.
By following these basic packaging and transportation standards, you can ensure that the 1000kVA three-phase ground transformer is still in good operating condition when it arrives at its final destination and can be put into use smoothly.
32
32 years of industry experience
Manufacturer Test
1000kVA Three Phase Pad Mounted Transformer
Progress test
NPC Electric manufacture pad mounted transformer have the strict quality control. The progress test of 1000kVA three-phase ground transformer usually includes a series of inspection and verification steps to ensure that the transformer meets the design standards and performance requirements during production and installation. Common progress test items are high voltage withstand test, load test and short circuit test. These progress tests help ensure the quality and reliability of the transformer and meet all safety and performance standards before 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 / Phase Relation, 3-Ph (Rated Voltage)
♦ 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
The Factory Acceptance Test (FAT) of 1000kVA three-phase ground transformer is a key link to ensure that the transformer meets the design specifications and quality standards before leaving the factory. The purpose of the factory acceptance test is to ensure that the transformer meets its design, function and quality requirements through comprehensive verification and inspection before delivery to the customer, thereby ensuring reliability and safety in actual use.
Routine Test - On load Loss Test:
Purpose of Testing
The purpose of On-load Loss Test is to measure the active power loss of the transformer under rated voltage and rated load, evaluate its energy efficiency level and design compliance, and provide a basis for energy consumption calculation and performance optimization during operation.
Testing Equipment
Power transformer test system (e.g. OMICRON, ISA, Tettex, Vanguard, etc.)
Voltage source and current source (usually rated voltage, or adjusted according to the test standard, such as 10 KV, 20 KV, 35 KV, etc.)
Temperature and humidity meter (used to record ambient temperature and humidity for correction of test data)
Voltage source and current source (usually rated voltage, or adjusted according to the test standard, such as 10 KV, 20 KV, 35 KV, etc.)
Temperature and humidity meter (used to record ambient temperature and humidity for correction of test data)
Pre-Test Preparation
Disconnect the transformer high voltage, low voltage and neutral power supply to ensure that the equipment is properly grounded and safely discharged.
The test environment should be dry and rainless, with a relative humidity of less than 75% and a recommended temperature range of 20–30°C.
The test environment should be dry and rainless, with a relative humidity of less than 75% and a recommended temperature range of 20–30°C.
Test Progress
Connect the Test Instrument:
Connect the test equipment to the appropriate terminals of the device under test and ensure that all wiring is correct and the device is well grounded.
Apply Test Voltage:
Apply the specified test voltage at the rated frequency and adjust the low voltage side to maintain the rated current (or specified current).
Connect the test equipment to the appropriate terminals of the device under test and ensure that all wiring is correct and the device is well grounded.
Apply Test Voltage:
Apply the specified test voltage at the rated frequency and adjust the low voltage side to maintain the rated current (or specified current).
Measure and Record
Start the test and record the following parameters:
On-Load Loss Power
Input Power and Output Power
Current
Voltage
Temperature (temperature rise or winding temperature)
Ambient temperature and humidity during the test
On-Load Loss Power
Input Power and Output Power
Current
Voltage
Temperature (temperature rise or winding temperature)
Ambient temperature and humidity during the test
Temperature Correction
The measured loss data is corrected based on a reference temperature (usually 20°C) to ensure the accuracy of the results.
Repeat Testing (if necessary)
Test different tap positions (Tap Changer) and record and compare the load loss data of each tap point.
Evaluation Criteria (Reference)
Evaluate the test results based on the equipment type and manufacturer requirements. If the load losses are low and the efficiency is high, it is considered "normal". If the load losses are too high or the efficiency is low, further inspection or corrective action is required.
*These comprehensive tests ensure that each transformer meets performance standards and operates
reliably under various conditions.
Application
BESS, Data center, Industry, Renewable energy, EV charging, Utility
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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