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ELECTRIC, WITH AN EDGE
1250 kVA Pad mounted transformer is a complete set of power distribution device composed of high-voltage switchgear, power transformer and low-voltage power distribution device combined in one or several boxes according to different wiring methods.
Pad mounted transformer can be used in construction sites, residential quarters, streets, industrial and mining enterprises, airports, ports, etc., for receiving electric energy, transforming voltage, providing power and lighting power supply.
Pad mounted transformer can be installed indoors or outdoors. At present, the most widely used Pad mounted transformer on the market is the Pad mounted transformer with a voltage level of 1250 kva.
From the structural point of view, the Pad mounted transformer adopts a front-to-back layout, with the front part as the high-pressure chamber and the rear part as the low-pressure chamber.
There are high and low voltage terminals, load switch operating handles, no-load tap changer, plug-in fuse, pressure release valve, oil level gauge, etc. in the high and low pressure rooms.
The rear part is the oil storage tank and the heat sink. The Pad mounted transformer winding and iron core, high voltage load switch and backup protection fuse are installed in a high ignition point oil tank to form an integration.
Pad mounted transformer is a fully sealed structure, using concealed high-strength bolts and oil-resistant nitrile rubber gasket to seal the box cover. The transformer oil in the oil tank is the insulation, heat dissipation and arc extinguishing medium.
The 1250 kva transformer is known for its efficiency and reliability. It is built to last, ensuring that your operations run smoothly without any interruptions. Moreover, it is designed to meet the highest standards of safety, ensuring that your team and your facilities are always protected.
| Rated Power(KVA) | High Voltage(V) | Low Voltage(V) | Loss(W) | |
| No-load Loss(W) | On-load Loss(W) | |||
| 75 kva Transformer | 34500/ 19920 13800/ 7957 13200/ 7620 12470/ or others | 240 480 480Y/ 277 600Y 347 | 180 | 1250 |
| 112.5 kva Transformer | 200 | 1500 | ||
| 150 kva Transformer | 280 | 2200 | ||
| 225 kva Transformer | 400 | 3050 | ||
| 300 kva Transformer | 480 | 3650 | ||
| 500 kva Transformer | 680 | 5100 | ||
| 750 kva Transformer | 980 | 7500 | ||
| 1000 kva Transformer | 1150 | 10300 | ||
| 1500 kva Transformer | 1640 | 14500 | ||
| 2000 kva Transformer | 2160 | 20645 | ||
| 2500 kva Transformer | 2680 | 27786 | ||
| Tachnical Data for Pad Mounted Transformer | |||||
| Rated Power(KVA) | Dimension(mm) | Weight(kg) | |||
| W | D | H | Oil Weight | Total Weight(kg) | |
| 75 kva Transformer | 1390 | 910 | 1430 | 120 | 645 |
| 112.5 kva Transformer | 1420 | 920 | 1430 | 138 | 729 |
| 150 kva Transformer | 1510 | 980 | 1530 | 201 | 989 |
| 225 kva Transformer | 1600 | 1000 | 1660 | 230 | 1195 |
| 300 kva Transformer | 1660 | 1080 | 1680 | 260 | 1415 |
| 500 kva Transformer | 1810 | 1160 | 1790 | 325 | 1905 |
| 750 kva Transformer | 2030 | 1300 | 2030 | 535 | 2755 |
| 1000 kva Transformer | 1651 | 1549 | 1854 | 650 | 3235 |
| 1250 kva Transformer | 2210 | 1470 | 2150 | 748 | 5835 |
| 2000 kva Transformer | 2380 | 1600 | 2220 | 950 | 6430 |
| 2500 kva Transformer | 3070 | 1650 | 2330 | 1020 | 8865 |
Because the Pad mounted transformer has the above advantages, especially the high reliability of power supply, therefore, the Pad mounted transformer is still generally accepted by users and power supply departments as a grid terminal device, and the current market demand is large.
The problem of common oil tank between high-voltage electrical components and transformers
Pad mounted transformer generally requires no maintenance for 12 years.
This requires that in such a long operating time, the transformer oil as the insulation, heat dissipation and arc extinguishing medium is not polluted and the insulation performance cannot be reduced below the standard requirements.
Load switches are usually operated under no-load conditions, and arc carbonization is rarely generated at this time.
However, if the load current is switched off or the fault current is switched on, the arc generated will quickly cause the transformation oil to be carbonized and blackened.
After repeated operations, the insulation performance of the transformer oil will be significantly reduced, and in severe cases, the internal flashover breakdown of the transformer will occur.
The heat generated by the Pad mounted transformer during operation generates high oil temperature, which makes it work with other high-voltage electrical components in a high-temperature environment for a long time. The conductive contact surface is easy to oxidize, which reduces the service life of the component.
The temperature rise of the top oil surface of the oil-immersed transformer should not exceed 55°C, and the allowable ambient temperature should not exceed 40°C.
In this way, the highest oil temperature for normal operation of the Pad mounted transformer can reach 95°C.
The reliability of load switches and high-voltage fuses will be reduced if they operate at such high temperatures for a long time.
Pad mounted transformer and high-voltage electrical components are changed from a common box to a separate box.
Put the windings, iron cores and high-voltage electrical components of the Pad mounted transformer into two independent ones and fill them into the transformer tank.
Transformer oil tank (lower oil tank), high-voltage electrical component oil tank (upper oil tank).
The upper and lower fuel tanks are independent of each other and separated by a 90~100mm isolation layer.
The two oil tanks are only electrically connected, the oil circuit is blocked, and the oil medium does not interfere with each other.
In this way, when the load switch breaking current and the fuse are blown due to a fault, the carbonization and deterioration of the transformer oil caused by the arc will not affect the lower tank, and the insulation performance of the lower tank transformer is guaranteed.
At the same time, due to the existence of the isolation layer, the influence of the heat generated during the operation of the lower oil tank transformer on the upper oil tank is reduced, and the temperature rise of the upper oil tank is lower, which ensures a low temperature environment for the operation of high-voltage electrical components and ensures the reliability of operation.
kv is kilovolts. kv is the unit of voltage.
KVA is kilovolt ampere, which is the measurement standard of power.
KVA = KiloVolt-Ampere, formula definition: kVA is the capacity in the transformer, Chinese: kilovolt-ampere.
The guaranteed value of the output capacity of the transformer in the rated state. The unit is expressed in kilovolt-amperes (kVA). The design value of the rated capacity of the primary and secondary windings, etc. It belongs to the physical unit, kilovolt-ampere, and generally refers to the maximum transformation capacity of the transformer.
Volt-Ampere (Volt-Ampere Characteristic Tester of Transformer) is the unit of total power; Watt is the unit of active power;
Total power * efficiency = active power, kVA kVA is the apparent power, which includes active power and reactive power.
Kilowatt kW is the active power. Kilowatt (kW) = kilovolt-ampere (kVA) multiplied by the power factor. The kilovolt-ampere kVA is the apparent power, which refers to the capacity of the equipment (usually a transformer);
Kilowatt kW is the active power, which refers to the active power consumed by your equipment (usually power equipment); there is also a reactive power, Qvar, which refers to the power consumed by the inductive load in the equipment.
The guaranteed value of the output capacity of the transformer in the rated state. The unit is expressed in kilovolt-amperes (kVA) (volt-ampere VA and megavolt-ampere MVA are not commonly used). Because transformers have high operating efficiency, usually the primary and secondary windings (transformer windings) The design value of the rated capacity of the deformation tester is equal.
KVA is the capacity in the transformer, KVA is the apparent power, and its size is related to the power factor.
1 kilovolt (kV) = 1000 volts (V)
1 volt (V) = 1000 millivolts (mV)
Kilovolts are greater than volts and greater than millivolts, and the progressive rate is 1000.
1 volt (V) = 1000000 microvolts (μv)
1 megavolt (MV) = 1000000 volts (V)
KW is the unit of power, and KW is kilowatt.
The kilovolt ampere (kVA) is a measurement standard for power, which is 1 kilovolt ampere.
kVA is equivalent to the current in a circuit generated by the voltage of that line. It is usually measured in a transformer, that is, it is a unit of current.
Kilowatt refers to the power of an electrical appliance, that is, the unit of power.
The rated capacity represents the guaranteed value of the output power of the transformer under rated working conditions, and is the apparent power of the transformer.
That is, the ability of the transformer to output the maximum electric power, and the actual output power of the transformer should not be confused with the capacity.
The unit is volt-ampere (VA), kilovolt-ampere (kVA), and megavolt-ampere (MVA).
KVA application examples
Power factor cosΦ=0.8 Active power is P=1kW
Then tanΦ=0.75, so the square of apparent power S=square of P+square of P*tanΦ
That is S=1.25kVA
When the power factor is 1, 1kVA=1kW
1MVA=1000kVA
KW and KV cannot be converted.
Because according to the definition of electric power P, it is known that P=UI, and then according to the dimensional analysis, W (watt)=V*A, so 1KW=1KVA. Electric power is a compound unit.
Kilowatt (KW) = kilovolt-ampere (KVA) multiplied by the power factor; that is, KW=KVA*power factor
Volt-Ampere (Volt-Ampere Characteristic Tester of Transformer) is the unit of total power; Watt is the unit of active power;
Total power * efficiency = active power, kVA kVA is the apparent power, which includes active power and reactive power.
Kilowatt kW is the active power. Kilowatt (kW) = kilovolt-ampere (kVA) multiplied by the power factor.
The kilovolt-ampere kVA is the apparent power, which refers to the capacity of the equipment (usually a transformer);
Kilowatt kW is the active power, which refers to the active power consumed by your equipment (usually power equipment); there is also a reactive power, Qvar, which refers to the power consumed by the inductive load in the equipment.
Conversion relationship between KV and KVA
1 kilovolt (kV) = 1000 volts (V)
1 volt (V) = 1000 millivolts (mV)
Kilovolts are greater than volts and greater than millivolts, and the progressive rate is 1000.
1 volt (V) = 1000000 microvolts (μv)
1 megavolt (MV) = 1000000 volts (V)
kVA is the apparent power, and its size is related to the power factor. The active power P, reactive power Q, and apparent power S have the following relationship: KVA = KiloVolt-Ampere kilovolt-ampere, formula definition: kVA is the capacity in the transformer, kVA For the apparent power, its size is related to the power factor. The active power P, reactive power Q, and apparent power S have the following relationships.
P=S×cosΦ (cosΦ is the power factor)
Q=S×SinΦ
S square = Q square + P square
KVA application examples
Power factor cosΦ=0.8 Active power is P=1kW
Then tanΦ=0.75, so the square of apparent power S=square of P+square of P*tanΦ
A 1250 kva transformer is versatile and can be used in a variety of applications. It is commonly used in industrial settings, where it helps to distribute power efficiently and safely. It can also be used in commercial settings, where it ensures that businesses have the power they need to operate effectively.
As we delve deeper into the world of 1250 kva transformers, it’s essential to understand their specifications and dimensions. These transformers are not just about their power capacity; they also encompass a wide range of features that make them suitable for various applications.
The oil capacity of a 1250 kva transformer is another important aspect. Transformer oil serves as an insulator and coolant, preventing overheating and maintaining the transformer’s efficiency. Knowing the oil capacity can help in regular maintenance and ensure the transformer’s longevity.
In the realm of power transmission and distribution, the role of a 1250 kva transformer manufacturer cannot be overstated. These manufacturers are the backbone of the industry, providing the essential equipment that powers our cities, industries, and homes.
A 1250 kva transformer manufacturer is responsible for the design, production, and maintenance of these high-capacity transformers. They ensure that these transformers meet the highest standards of quality and reliability, providing a steady and efficient power supply for various applications.
Choosing the right 1250 kva transformer manufacturer is crucial. The right manufacturer not only provides high-quality products but also offers excellent customer service and technical support. They can guide you in choosing the right transformer for your needs and provide necessary maintenance and support services.
1250 kva transformer manufacturers have a global reach, supplying their products to various countries and regions. They cater to a wide range of industries, including power generation, industrial manufacturing, and residential power supply.
For more information on 1250 kva transformer manufacturers, you can check out our product page or read about our solutions for different industries.
Note: The links provided are for informational purposes only and do not constitute an endorsement of any product or service.
In the realm of electrical distribution and power infrastructure, pad mounted transformers play a crucial role. For those in the market for a wholesale 1250 kVA pad mounted transformer, understanding the price range is essential. This article will provide you with valuable insights into the pricing details.
Wholesale 1250 kVA pad mounted transformers are integral components of power distribution systems. These transformers are designed to efficiently step up or step down voltage levels, ensuring safe and reliable power supply. Now, let’s delve deeper into their pricing specifics:
To grasp the price range of wholesale 1250 kVA pad mounted transformers, it’s important to explore the various types available in the market. Here is an overview of the different types and their corresponding prices:
YAWEI Oil Transformer 10kV 1250 kVA 500kVA 250kVA Three Phase 125kVA 100kVA Pad Mounted Transformers Price:
Three Phase Pad Mounted Transformer Price 500kVA 1500kVA 1250kVA 1000kVA 100kVA 1600kVA 2 3 8 MVA 1250 1600 1000 kVA 11kV 33kV:
1250 kVA Pad Mount Transformer – 12470V Delta Primary – 480Y/277 Wye Secondary – Oil Cooled – Larson Electronics:
| Transformer Type | Price |
|---|---|
| YAWEI Oil Transformer 10kV 1250 kVA 500kVA 250kVA Three Phase 125kVA 100kVA Pad Mounted Transformers Price | $4,858.00 |
| Three Phase Pad Mounted Transformer Price 500kVA 1500kVA 1250kVA 1000kVA 100kVA 1600kVA 2 3 8 MVA 1250 1600 1000 kVA 11kV 33kV | $6,000 – $23,000 |
| 1250 kVA Pad Mount Transformer – 12470V Delta Primary – 480Y/277 Wye Secondary – Oil Cooled – Larson Electronics | $31,500.00 |
Please note that the prices mentioned above are sourced from various suppliers and may not reflect the prices from all retailers or suppliers. Additionally, the prices may vary based on specific features and specifications. For a more accurate quote, it is recommended to directly contact the supplier.
The prices of wholesale 1250 kVA pad mounted transformers can be influenced by various factors. Understanding these factors can provide valuable insights into the price variations. Here are some factors that may impact the prices:
Brand and Manufacturer: Different brands and manufacturers may offer pad mounted transformers at varying prices based on their reputation, quality, and market positioning.
Features and Specifications: The specific features and specifications of a pad mounted transformer, such as primary and secondary voltage ratings, insulation class, cooling method, and efficiency, can impact its price. Transformers with higher specifications or additional features may be priced higher.
Efficiency and Energy Standards: Transformers that meet higher energy efficiency standards, such as those set by the Department of Energy (DOE), may be priced higher due to their improved performance and energy-saving capabilities.
Market Demand and Supply: Market dynamics, including demand and supply conditions, can influence the pricing of pad mounted transformers. Factors such as availability, competition, and market trends can impact the prices offered by different suppliers.
To obtain precise pricing details and better understand the various types and their corresponding prices, it is advisable to directly contact manufacturers, suppliers, or distributors. They can provide specific information about the features, specifications, and pricing of their products.
The wholesale 1250 kVA pad mounted transformer stands as a critical component in the power distribution industry. Its various types cater to diverse needs and applications, with prices varying accordingly. As a potential buyer, it is essential to comprehend these differences and make an informed decision based on your specific requirements and budget.
To make a wise purchase, conduct thorough research, compare different options, and select the transformer that offers the best value for your investment. Happy shopping!
