Customization: | Available |
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Application: | Power, Electronic, Instrument, Lighting, Rectifier |
Phase: | Three |
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Scope of Supply
Product: Oil Immersed Power Transformer
Rated Power: Up to 200 MVA
Primary Voltage: Up to 230 KV
Rated capacity (KVA) | Voltage Combination andTap range | Vector group Symbol | No-load loss (W) | Load loss (W) 75 | Impedance Voltage(%) | No-load current | ||
HV(KV) | HVTap range(%) | LV(KV) | ||||||
30 | 6 6.3 10 10.5 11 | ±5% or ±2*2.5% | 0.4 | Dyn11 | 65 | 455 | 4 | 1.5 |
50 | 80 | 655 | 1.3 | |||||
63 | 90 | 785 | 1.2 | |||||
80 | 105 | 945 | 1.2 | |||||
100 | 120 | 1140 | 1.1 | |||||
125 | 135 | 1360 | 1.1 | |||||
160 | 160 | 1665 | 1 | |||||
200 | 190 | 1970 | 1 | |||||
250 | 230 | 2300 | 0.9 | |||||
315 | 270 | 2760 | 0.9 | |||||
400 | 330 | 3250 | 0.8 | |||||
500 | 385 | 3900 | 0.8 | |||||
630 | 460 | 4460 | 4.5 | 0.6 | ||||
800 | 560 | 5400 | 0.6 | |||||
1000 | 665 | 7415 | 0.6 | |||||
1250 | 780 | 8640 | 0.5 | |||||
1600 | 940 | 10440 | 0.5 | |||||
2000 | 1085 | 13180 | 5 | 0.4 | ||||
2500 | 1280 | 13660 | 0.4 |
Power Transformer Manufacturing
Why Do Transformers Fail?
An electrical transformer can blow for a variety of reasons and can cause an explosion or fire. Causes of transformer explosions could include:
· Lightning strikes
· Overheating
· Wear and corrosion
· Damage to the electrical system anywhere along the line
· Failed safety devices and power surges
· Foreign objects or animals getting into the transformer
· Moisture
When a transformer fails, it will usually result in a loud boom, a power outage, and a fireball that creates a large plume of smoke.
The final assembly begins with the removal of the core and coil assembly from the vapor phase. All internal components are re pressed under the pressure specified by the project, and now the excess water has been removed to ensure the tightness. The metal and fiber nuts are tightened or tightened as required, and the electrical clearance is verified again.
The core and coil assembly are placed in the tank, which is filled with oil to prevent exposure to air, and a cover assembly is added to connect with the sleeve. Once the enclosure is welded and leak checked, the galvanized radiator is assembled to the tank, the unit is drained, and the transformer is vacuum filled for final testing. During this period, the control box and any other customer specified monitors and components are installed and connected. All external welded components shall be installed to ensure correct installation to the tank and removed prior to the completion of the factory acceptance test of the transformer.
FAQ |
1. What standard do you follow? |
EU548/2014,IEC 60076 standard, and all other major international standard such as ANSI, CSA, UL, etc. |
2. What package do you have for transformers? |
Standard package with welded iron frame packed with ply wood boxes. |
3. How long can I receive my transformers? |
The shipping time from our port (lianyungang or qingdao) to your port is range from one week to one month, depend on the distance. |
4. What is your delivery time? |
Normally within one month since the date drawing approved by customer except the transformer required tap changer. |
5. How can you support us as a partner? |
We will offer you the best price, best service and other supporting documents such as quotation, technical data sheet, drawing, reference list, manufacturing plan, quality control plan, testing plan, test report, etc. |
6. What is ur service? |
We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, aiming to be your best trustworthy partner. |
7. Where is your main market? |
We had exported our transformers to more than 30 countries in the world, our main market is Africa countries, South and North American countries, and Asia countries. |
8. What certificate do you have? |
We have KEMA, CESI, CTQC type test report for our transformers. |
9. How long is your delivery time? |
30 days after drawing confirmed by buyer for distribution transformers below 5000kva, bigger transformers depend on the capacity and components, normally 30-90days(with imported components) |
10. What is the scope of your after-sale service? |
Installation, commissioning, training, maintenance, etc. |
11. Why choose VOUCHIVAN? |
Experienced transformer supplier with professional engineering team. |
Complete customer service from quoting to operating. |
Quick response 24/7. |
12. Are you able to do the installation and commissioning? |
Sure, we will charge extra cost for this service. |