31.5MVA/220kV single phase traction transformer

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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:		Rated Voltage:	31.5MVA/220kV
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 31.5MVA/220kV single phase traction transformer, 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 the 31.5MVA/220kV single phase traction 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 31.5MVA/220kV single phase traction 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: if the transformer converts 240v ac to 8V ac, ratio 30:1 then it should step up the voltage by the same ratio, i.e, 15V ac to 450v ac.but it's not the case !!: Ok firstly,you're going to need ALOT more than 80v if you plan to power a transformer. When in its transport form, be it a plane, car, lorry etc you can run it on ordinary diesel fuel, however in Robot form, In order to make it walk, your transformer would need far more power than a diesel engine could provide. Take Optimus Prime for example, the weight ratio of Prime, which would likely exceed 75 to 80 lbs per inch might be impossible to provide enough power to move your transformer on two legs. If you are well educated in hydraulic engineering, hydraulic power might allow your transformer to walk, but the hydraulic system itself would create a different lot of problems.The hydraulic pipes, along with your transformers fuel lines and electrical wiring, would have to remain undamaged or even untouched during transformation, and a secondary power source must be used to power the hydraulic pumps. In conclusion, If you're planning to power 35 to 40 tons of pure machine, good luck. Hope this helped.

Q: According to your measurements when we have a step-up or a step-down transformer?: A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the first or primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field through the secondary winding. This varying magnetic field induces a varying electromotive force (EMF) or voltage in the secondary winding. This effect is called mutual induction. If a load is connected to the secondary, an electric current will flow in the secondary winding and electrical energy will be transferred from the primary circuit through the transformer to the load. In an ideal transformer, the induced voltage in the secondary winding (Vs) is in proportion to the primary voltage (Vp), and is given by the ratio of the number of turns in the secondary (Ns) to the number of turns in the primary (Np) as follows:- Ns/Np Vs/Vp ---------------------(i) By appropriate selection of the ratio of turns, a transformer thus allows an alternating current (AC) voltage to be stepped up by making Ns greater than Np, or stepped down by making Ns less than Np.

Q: I am completing an essay on how to improve the performance of a transformer. Please could someone advise me on the problems incurred in transformers and ways that have been designed to reduce these problems. Thanks in advance: To improve the performance of a transformer, you have to:- [1] Reduce the copper losses, and [2] reduce the iron losses. Copper losses can be reduced by using copper wire of the highest purity; and by using copper wire that has the thinnest possible layer of insulating material on it. These measures, taken together, reduce the length of the wire and therefore its resistance. Iron losses are reduced by using magnetically soft iron in the laminations. This is the type of iron that has a tall and narrow hysteresis loop. Using copper wire with thin insulation (as mentioned above), keeps the windings close to the iron and so reduces magnetic leakage. A third measure is to use very thin laminations and to insulate them with very thin material as this will reduce eddy currents. It is very expensive to build a 99% efficient 250 MVA transformer. The losses in a 94% efficient version, are often cheaper to manage than the extra cost of making the 99% version.

Q: I know that both at some point were comics made by Marvel and that Thundercats was animated by a japanese studio and Transformers had an original series in japan but was here in america first. That's the info I have but what is what? And please no guessing if you don't know please don't play favorites between american and japanese cartoons, ok?: Transformers was animated by an American company whom employed Japanese animators, Thundercats was made by Toei who is a Anime company but it was made for Americans.

Q: The core part of the transformer is composed of sub-and sub-components, which are generally divided into two transformers. Urgent, quick answer What is the core part of the "what" and "what" sub-composition ah? The "What" son, this "what" is to fill you ah.: The core part of the transformer is composed of (primary coil) and (secondary coil), generally divided into two types of step-up transformer and step-down transformer. (In fact, there is not a step up and not buck the isolation transformer) Did not hear the transformer "what son".

Q: Hi, I'm trying to build a Jacob's ladder or maybe a Tesla coil. What should I use to get enough voltage? A lot of resistors or a transformer? (Are they also safe for humans?): I don't think there is any way to use resistors to increase voltage. Neon sign transformers are the usual choice, but they are not safe for humans. Death is not rare and they likely cause illegal radio interference. Voltage multipliers are likely safer, but the Jacob's ladder arc will be dimmer and shorter. Neil

Q: Transformer voltage range of 10.5 ± 2 * 2.5% kV and 10.5 ± 5% kV What is the difference: 1, the voltage range is the same, are 10kV ± 5%; 2, the difference is that the accuracy of different voltage regulator, 10.5 ± 2 * 2.5% kV transformer sub-switch has five stalls, respectively, 10.5 +5% kV, 10.5 + 2.5% kV, 10.5kV, 10.5-2.5% , 10.5-5% kV; and 10.5 ± 5% kV transformer section switch has three stalls, respectively .5 +5% kV, 10.5kV, 10.5-5% kV; 3,10kV transformer sub-switch three more for the power failure regulator transformer, and sub-section switch five for overload regulator of the transformer, relatively speaking, the fifth gear than the third gear section switch Much more complex, so the price should be slightly higher for the load change is relatively large, the voltage quality requirements of the relatively high important occasions.

Q: does anyone know if there will be a next transformers?? there were rumors that there will be a 2nd in 2009 but with the same actors/actresses????I CANT WAIT THAT LONG :-(: Yes, a sequel has been given the green light but the plot is still unknown. Most people believe that Starscream would be back, in a bigger role this time definitely as leader of the Deceps because only he survived the first movie. Another rumour is that Jazz is going to rebuilt into a harder frame but still the Pontiac. Its possible because Prime found a piece of the Allspark in Megatron's chest. But, the one thing everyone is thinking is would Megatron be back as the all-powerful GALVATRON?!!!

Q: "A transformer ratio is 110/11, then it is" "A transformer ratio of 110 / 10.5, it is" "A transformer ratio of 121 / 10.5, it is": 110 / 11KV is a step-down transformer. 110 / 10.5KV is a step-down transformer. 121 / 10.5KV is a step-up transformer. Consider the line pressure drop, the state provides a transformer primary winding rated voltage and secondary winding rated voltage.

Q: I have a transformer scavenge from a VCD player, written 25W on VCD player, so that should be the transformer's VA rating ?I also measured the transformer, it has 2 secondary. It have 11.1VAC on 1st output winding and 13.1VAC on 2nd output winding.So if I were to use into DC (rectification) and calculate for other maths, should I use the value of 11.1VAC / 13.1VAC, or their average which is roughly 12VAC ?: nicely the voltage could desire to be smash up around the resistors (as resistors in sequence artwork as a voltage divider) with a million/11 going around the 100ohm and 10/11 going around the 1kohm, so i could anticipate look on the 0.4W resistor. With R of one thousand and P (max vigour) of 0.4 you need to use the equation ( P VI or greater, PV^2/R) 0.4 V^2 / one thousand 4 hundred V^2 V 20V

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