250MVA/220kV standby transformer for factory

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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:		Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:		Rated Voltage:	250MVA/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 250MVA/220kV standby 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 200-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 250MVA/220kV standby 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 250MVA/220kV standby 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: During the trailers before the movie transformers, there was a trailer for a movie that looked like it was done by an amateur video.It didnt have a name but it had the statue of liberty flying through the streets.Anybody know the movie or wat the movie is about?: Search okorder

Q: i think transformers: The simpsons by far! Transformers had too many effects,it got old after a while.

Q: Transformers, broken, how to repair: Some of the transformer buried inside an insurance, first look at the said

Q: I got stuck in a problem while solving the previous exam question for my courseTwo transformers with unequal turn ratio and unequal ratings are connected in parallel and have the same secondary voltage. How will the load be distributed between them? Hence find the circulating current.I know how to find the circulating current when the secondary voltages are different. But how can there be a circulating current if the secondary voltage is same?And I know about the load distribution being inversely proportional to the line impedance of the transformers, but what will be the change taking circulating current into account?: To me it is a typical circuit analysis problem. From an application engineers point of view , to analyse the problem, the following needs to be checked first 1) Open circuit Voltage of both the TRXs 2) Internal impedences of TRXs 3) Total Load to be catered to ( converted to in terms of Z) 4) Ratings of the TRXs ( Rather allowable current that can be drawn from each TRXs) Having known first three quantities , we can make the parallel circuts and calculate the current in each branch ( through TRX1, TRX2, and the load) andtheir directions The fourth quantity will tell us if loading is within limit or not.

Q: 2500KVA transformer bearing current how much calculation: 2500KVA transformer carrying current of 7740A. The calculation method is: Because P = UIcosφ, so I = P / (Ucos?) = 2500 KVA / (380 Vx0.85) = 7740A. Transformer is the use of electromagnetic induction principle to change the AC voltage of the device, the main components are primary coil, secondary coil and core (core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the use can be divided into: power transformers and special transformers (electric furnace change, rectification, frequency test transformer, voltage regulator, mine variable, audio transformers, IF transformers.

Q: I was planing on buying transformers but my friend told me about skyrim and it looks pretty good, which one is better and funner?: Transformers : Dark of the Moon is wwaaayyyyy better than both. .well actually if you like medieval times games.then sure maybe skyrim is the game for you. try watching walkthroughs of the gameplay on youtube.I don't know you or what you like but however by watching the gamethroughs you'll know which one you prefer :p btw Transformers Dark of the Moon is 50 dollars I think now. since Skyrim is new it's like 60 dollars.and War for cybertron is older.so if you go to a video game store that isn't as well known.you know those stores that sell em cheaper.you can get it very cheap.or look on Craigslists. I got War for cybertron for 15 dollars. I got Transformers Dark of the Moon for 60 dollars ( knew I wanted it cause I watched it on youtube! ) and in my opinion.dark of the moon is waaayyy more fun. sorry if I talked too much.hope I helped

Q: I have been reading about pulse transformers and i am curious if there exists a pulse transformer that would take 1 pulse/second or even less and convert to very low voltage high current. If not, would it be possible to make one? Any info is very appreciated! Thx!: Pulse transformers can be wound to any turns ratio that is desired. That being said pulse transformers have small cores and therefore handle small amounts of power. You can find cores on those old mother boards that are no longer in service and junk computer power supplies also have a couple of cores. These toroids were normally used as filter inductors to remove spikes from DC or low frequency lines. You can easily rewind them for pulse transformers.

Q: I have a nice little 120VAC to 7.5KV transformer that used to call an air purifier its home, but I'm not sure how to wire it. I have some guesses, but I want to make sure I don't burn down my house so I am hoping to verify them with the help of the yahoo answers community.: Transformers consist of a primary and secondary winding. If you are certain of the AC input side (and the fact that they are black and white suggest you are) then the green and red wires are the secondary and would produce the 7.5kv AC output. Neither of these wires can be connected to ground as that would short the transformer and more than likely fry it,trip a circuit breaker , cause a fire or all three. Secondary windings with more than two connecting wires would indicate a transformer that can be tapped, which means that various voltages can be obtained depending on the combination of the output wires. 7.5 KV is a very dangerous output and if you are using the transformer outside of it's intended device, a fuse on one of the AC leads would be an absolute necessity.

Q: Anyone know the name of this shoe like transformer.: Which shoe? if it is a random shoe, then i will say shoebetron with the autobots.

Q: current of the battery , but not through the output of the transformer but between the input and the battery, why is that?: An ideal transformer is a equal voltage per turn device. If the secondary winding has 28/115 times the number of turns as the primary winding then it will produce 28/115 as much voltage as that applied to the primary. But an ideal transformer is also a power in equals power out device, so that the product of primary voltage times primary current equals the product of secondary voltage times secondary current. So the secondary current will be 115/28 times the primary current. -- Regards, John Popelish

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