278MVA/500kV single-phase double winding OLTC converter 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:	one	Coil Structure:	Toroidal
Coil Number:	2 Winding	Capacity:		Rated Voltage:	278MVA/500kV
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 278MVA/500kV single-phase double winding OLTC converter transformer can significantly improve the economy of the OLTC substation, and matches well with the transmission capacity of OLTC 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 278MVA/500kV single-phase double winding OLTC converter transformer. In order to make the products applicable to any OLTC substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity OLTC 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 OLTC 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 OLTCtransformer 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 OLTC Transformer’s right at the first time once again filled the gap in the field of OLTC transformer research after Chinese transformer industry overcame the difficulty of integral transport of 278MVA/500kV single-phase double winding OLTC converter 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.

Q:LED non-isolated drive transformer (two windings) calculation method: T cycle, f frequency D minimum duty cycle Vout output voltage Vin input voltage Ton magnetizing time

Q:I'm a beginner in electronics ,I have a big , old transformer (I think it is AC) , only supplies + current. (36 Volts)I also need - current to drive an amplifier.So i think it's an AC to DC converter i need. (It's just a guess , i don't really know.)How can i achieve this ?Note : If you need additional details , please include how i can get that detail , just in case i don't know.: transformer is only chenge value of ac and dc does not flow through transformer. and transformer work on the principle of electomagntic induction only induced current from primary coil to secondray

Q:i want what does a transformer exactly do and not how it works: A okorder

Q:Sichuan transformer manufacturer that a best?: Personal point of view: Sichuan transformer manufacturers are the quality of the general! The scale of the larger Chengdu Double Star Transformer Co., Ltd., Chengdu, Xi'an Electric Electric Co., Ltd. to the limited liability company

Q:A speaker with resistance R is rated at 16Ω. What ratio of NP:NSof the transformer is required so that the stereo thinks that the speaker is 8: same consequences as Electronyet in a various way. 7000 familiar turns divided via 350 secondary turns, 20:a million ratio sixty 3 volts on secondary situations ratio of 20 1260 volts on familiar. sixty 3 volts divided via a hundred ohms 0.sixty 3 amps on secondary. 0.sixty 3 amps on secondary divided via ratio of 20 .0315 amps on familiar.

Q:Calling all fans of Transformers! I am looking for anyone to tell me if Transformers Animated is coming back for a third season on Cartoon Network. The reason why I am asking this question is because I recently bought the second season of the show and noticed that they have a lot of information on new characters as a special feature and I am wondering if those characters will be in the third season of the show.: That would suck sooooo bad if it is cancelled. All that build up in the first season with super villains and no Megatron and like, 3 Decepticons till the end of season 2 for what! To take it all away just as its getting good and finally setting up a full on Autobot Decepticon war There better be a season 4 or this series will go in the forgotten bin with Robots in Disguise as another series that took forever to set just for 1 big battle then that's the end. But if it is the end then that will teach the writers for holding out on what fans really want. I can not sit through season 1 or 2 again, except the season 2 finale.

Q:I just purchased a little halogen spotlight lamp with an Class II transformer that converts 110v-120V to 11.5V. When I put my ears about a 12 inches from the transformer near the wall outlet, I hear a little buzzing or humming noise. Is this normal or is there something wrong?: electric powered Engineers call the vibration of a transformer sixty-cycle hum, and is popular. All electrical energy interior the country is generated at 60 cycles in line with 2d, and because transformers have windings, they'll buzz or hum. different countries generate at 50 cycles in line with 2d. the better the transformer, often the louder they'll hum. i admire music, and the overtones or harmonics of 60-cycle hum will continuously supply a hum it is between a B-flat and B-organic. The B-flat it is two octaves under midsection-C on a piano vibrates at fifty 8.27 cycles in line with 2d. The B-organic 2 octaves under midsection-C on a piano vibrates at sixty one.72 cycles in line with 2d. The hum of the transformer you pay attention maximum in all probability will dominate at a bigger overtone, or harmonic. 60 cycle hum x 2 a hundred and twenty cps B-flat 116.fifty 4 cps (that's the B-flat on the 2d line from the backside of the bass clef). B-organic 123.40 seven cps 60 cycle hum x 4 240 cps B-flat 233.08 cps (that's the B-flat slightly below midsection-C on the piano). B-organic 246.ninety 4 cps I actually have a pal who's has been blind all his existence, and is a lot extra conscious and mushy to sounds. He tells me that he can stay in some shops like Wal-mart for purely see you later using fact the hum from the lights (that have ballasts or transformers) will at last get on his nerves. I even have been conventional to harmonize or sing a song with the transformers in super substations, that are a lot louder.

Q:HELP!! My boyfriend wants to see transformers and he told me I had to study up first lol! He wants me to know who all of the characters are because apparantly its from a comic or cartoon or something? I dunno but can anyone tell me anything about the TRANSFORMERS? I need to know characters and storyline etc. basically just anything u knowThanks lol.: I have already seen it. It has opened here is Australia several days ago. I am NOT a transformers fan and only knew some names because I knew kids who played with the dolls. I am NOT into the comic either. I can tell you now YOU DO NOT NEED to know any names. EVERYTHING you need to know is explained in the movie. But DO go and see it. It is an AWESOME movie. (It takes a lot in a movie to impress me - so that's a lot for me to say it is an awesome movie. Acting is not the best you'll ever see But over all - it's VERY VERY well done)

Q:I have 12 x 12V 10W lamps in series would I be correct in saying I need a 230-12V 120W transformer to suit?: You need a transformer that has at least 12 amperes output at 12V to make it lasts longer life. Obtain a 15A one even better. Never use the calculate value. Always give some more extra current for spare to make the transformer lasts longer.

Q:What is the meaning of the transformer capacity unit KVA?: KV.A is the capacity in the transformer KVA for apparent power, its size and power factor! For example: power factor cosΦ = 0.8 active power P = 1Kw Then tgΦ = 0.75, so the square of the apparent power S = the square of P + the square of P * tgΦ When the power factor is 1, 1KVA = 1KW

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