400MVA/230kV power transformer exported to USA

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1 pc/month

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Quick Details

Place of Origin:	HeBei	Brand Name:	CNBM	Model Number:
Usage:	Power	Phase:	Three	Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:	50000 63000 80000 100000 120000 180000	Rated Voltage:	400MVA/230kV
Connection Symbol:	YNd11 Dyn11 YNyn0d11	Tank:	Cover type or Bell type	OLTC:	MR or ABB or SMS

Packaging & Delivery

Packaging Detail:	Mainbody --naked Disassembled parts -- crate
Delivery Detail:	3 months

Specifications

1. CESI certificate
2. High short-circuit withstand
3. Low loss, PD and noise
4. CTQC certificate
5. No leakage

Description

The application of the 400MVA/230kV power transformer can significantly improve the economy of the UHV substation, and matches well with the transmission capacity of UHV lines, which has wide prospect of application. Because of its large capacity and large volume, the whole transportation weight with nitrogen is about 470-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of 400MVA/230kV power transformer. In order to make the products applicable to any UHV substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity UHV Transformer” as a key scientific research projects, and entrusted BTW to carry out the research.

During the process of research and development, BTW adopted the advanced design technology and modular design, the transformer can be transported disassembly and with advantages of compact core and winding body, less transportation weight and low transportation cost, effectively solves the need of UHV construction in the transportation restricted areas. By using the most advanced 3D magnetic field calculation software, BTW performed detailed analysis and calculation for the magnetic flux leakage and eddy current loss of the transformer coil, iron core and oil tank steel structures. Besides, by using of the advanced electric field calculation software, BTW performed detailed analysis and calculation of main longitudinal insulation, and mastered the arrangement of the main longitudinal insulation of large capacity UHV transformer and the control of distribution of winding magnetic flux leakage. All of which make the products with low loss, low noise, small volume, strong anti short circuit ability, no local overheating and other significant advantages, and guarantee the long-term safe and stable operation.

The world's first on-site assembled large capacity UHV Transformer’s right at the first time once again filled the gap in the field of UHV transformer research after Chinese transformer industry overcame the difficulty of integral transport of the 400MVA/230kV power transformer, which marks BTW has fully occupied the world transformer industry technical peak. The successful development of the product filled the gaps in the domestic technology and met the urgent need of UHV construction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of UHV Transformer products.

Q:Is the upper oil temperature of the transformer high or lower?: The upper oil temperature of the transformer is high, because the quality of the hot oil is light and floats to the upper part of the transformer tank and enters the cooler. After cooling with the exchange of the outside air, the weight becomes heavy at the bottom of the transformer to cool the transformer heating element

Q:I have a US microscope (110v) with a built-in transformer using a 6v, 10w lamp. I want to use this with a 220 v supply. What are the specifications for the cheapest (external) transformer I can use for this purpose?: You do not say what country you are in, so cannot give you links to an exact transformer. You are looking for a 220 to 110V step-down transformer. I am assuming you are going to plug the microscope into the transformer, rather than actually replacing the transformer in the microscope? The rating should be at least 10VA, personally I would go for at least 15VA for safety. That is quite a low rating and if you are lucky, you might be able to find a transformer meant for electric shavers really cheaply that should do the job. There is just one thing that concerns me, are you sure the transformer will only be powering the light and nothing else? If so, you will need a transformer that will handle a greater load. Somewhere on the microscope, or the PSU, or even it's box, there should be a rating Label, you can take the power supply rating from that. It is NOT true that VA Watts, but for something needing so little power, it should be near enough to give you the minimum rating. Good luck!

Q:I want to buy the original transformers, but i see there are different parts like more than meets the eye orarmada? idk, please help me. :): You want the one that's just Transformers. The DVD sets were released from Rhino and have silverish-metallic looking boxes. Forget the later anime series Armada or Energon.

Q:i dont get it. at the end of the movie. they did not kill one of the bad guys and he flew off to out of space?? do u think transformers 2 is gonna come out ???: i think the transformers 2 is going ti come out

Q:Hi,Should i wait for the Asus Transformer Pad Infinity, or should i buy the New iPad ?Thanks,Patrick: Hardware is negligible without software. The Google.play site (Formerly the Android Market) has plenty of apps to choose from. Basically, your investment is in the simplistic ease of the New iPad or the flexibility of Android 4.x. It's really a matter of which O/S you wish to support. I calculate the iPad IPS display has 25.7% more pixels than the new Asus model. Will you even notice the difference? Not at those screen sizes. Besides, the Asus has a 16:10 Ratio for a better movie experience. Personally, I have already seen that even the new iPad can't match wits with a Tegra 3 tablet when running certain games. Comes close, though. I'm waiting with baited breath for the Asus Transformer Pad Infinity. In my opinion, so should you.

Q:I have a power transformer and i forget where it came from. It has two leads from a wall outlet plug and then goes to the main (square) casing. there are three wires that come out the other side. They are from left to right, red,white and red. I assume its a 9v ac to dc transformer but am not positive. Can someone help me? I suspect that the white wire is ground. Any help would be great.: There's no reason to assume anything, except that the primary side (with the line cord and plug) is probably intended for 115 Volts, AC. If it's a transformer (rather than a power supply) it's not AC to DC at any voltage. Transformers convert AC to AC. With those colors on the secondary, there's a pretty good chance it's center-tapped. Red-to-red will be twice the voltage of either red-to-white. Nothing should be grounded to the transformer case.

Q:In the transformer load calculation to be calculated when the fire pump: And then calculate the capacity of fire, this time part of the commonly used load fire exit, all the fire load plus fire when the important load, is the fire state capacity. In accordance with these two states, the larger capacity to select the transformer capacity! Phone typing is not easy, please adopt ~

Q:I work in the power plant, today there is a task is to charge the lighting transformer, I would like to ask the next. What does it mean to charge the transformer? What does this charge mean? What is the use of? Thank you: To the transformer charge, that is, to the transformer side of the side with the rated voltage, the second disconnect, run a certain time and then close the second switch, and gradually bring the load.

Q:i need a transformers costume that can transform into a car, truck, etc i need to buy it for this kid for his birthday. medium size please. and he wants it as optimus prime.he wants it to look good and if he doesn't like it, well hes gonna be sad: wrap urself in tin-foil. lol

Q:1. If the input voltage is 100V and output voltage is 200V, which side of the transformer winding will be primary?(a) 100V side (c) winding with loss turns(b) 200V side (d) winding with more turns2. Which of the following statement about humming of transformer is true?(a) The frequency of humming tone is 100Hz(b) The frequency of humming tone is 50 Hz(c) The humming is caused by a vibration of the low voltage winding through which the high current flows(d) The humming is caused by the private force of attraction between the lamination of the core3. In a 10 KVA, 230/1000V 1-? transformer, the no load current will be around(a) 3 A(c) 10 A(b) 0.5 A (d) 0.9 A: Each turn produces about the same voltage, and the primary is the input side. 1. The input voltage is lower than the output voltage, so the input winding (primary) must have the lower number of turns. 2. If the line frequency is 50 Hz, then a and d, since the vibration force is proportional to the magnitude of the current, but not the direction, so both half cycles produce the same force and there are two cycles of force each voltage cycle. The main vibration forces involve the magnetic attraction between the laminations and their magneto-striction (change in dimension as magnetic flux magnitude varies) 3. The load full load primary current will be roughly the power divided by the voltage or 10,000/23043 A. The no load current will be a few percent of that current, but I do not know the typical fraction for a transformer of that size. My seat-of-the-pants guess is a, about 7%. -- Regards, John Popelish

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