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:Do you think transformers is a good movie?Whos your favourite team autobots or decepticons?Whos your favourite transformer?And whats the best scene in the film?: It was pretty cool, nice trip down memory lane. Autobots and Bumble Bee and the bit when he blasts who's gonna drive you home cheesy and funny!!!

Q:I would like to know if its possible to create my own transformer- preferably by producing my own windings. My goal is to make an open-air transformer encased in an acrylic box. I would like it be able to withstand a 15A load at 120V. I want the windings to be 1:1 so that the power is just transferred through the magnetic field, not stepped up or stepped down.The purpose would be to power my PC through it, just because I think it would be cool to look at the box and imagine the energy transferring through the air to my screen. Obviously, it's doing that out in the street, and a thousand other places before it gets to me, but I don't get to see any of it!Any one have any suggestions? If it's way to difficult or expensive to make my own inductors, what kind of inducts would I need to buy, and how close would the need to be to each other?: The info that those ideals are comparable are evidence of their validity. however the Sumerians' ideals weren't precisely in song with the actuality as Abraham knew it. God's so called 'try' of Abraham to sacrifice his son grew to become into evidence to Abraham that God did no longer approve of human sacrifice which grew to become into conventional at that component. Many places in the O.T. the Jews took idols from the people around them and commenced sacrificing their babies. God says He hated that and by no potential commanded it. Which grew to become into what He grew to become into attempting to tutor Abraham. Sending you a grin to help p.c. up your day.

Q:Why is the transformer coil insulation?: Because the transformer is used in different environments, according to different insulation level selection, can extend the life of the transformer. Transformer (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 purpose can be divided into: power transformers and special transformers (electric furnace change, rectifier, frequency test transformer, voltage regulator, mine transformer, audio transformers, IF transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers , Reactors, transformers, etc.). Circuit symbols commonly used as the beginning of the number. Example: T01, T201 and so on.

Q:Does anyone have any knowledge or experience with what happens if you try to run two different power supply transformers from the same AC line input. Can you do that? I have one transformer with a primary DC resistance of 28 ohms. I have a second transformer with a primary DC resistance of 265 ohms. I want to run these two transformers from the same AC power cord input. I tried connecting their primaries in series across the AC cord input, and the resulting secondary outputs from both transformers were lower than expected for a no-load condition. I am a little concerned about trying to connect the two transformer primaries in parallel.Any ideas?: Transformers don't work with DC inputs. Transformer physics require an input that changes with respect to time. That's why they work with AC. When you apply a DC input to a transformer, it looks basically like a low resistance, depending on the size and mass of the wiring. In order to provide DC as an input to this thing you have, you need a circuit to chop the DC and turn it into AC before it is input to the transformer.

Q:i need to have an immediate answer (solution to this) thanks:Determine the transformer bridge rectifier and filter capacitorspecifications/values required to produced an output current of 3A and a nominaloutput voltage of 17VDC with a ripple voltage of 2 Vpp. Assume a line voltage(from Meralco) of 220VAC, and that the design is to use a center-tappedtransformer.2. Given the characteristics of the raw DC supply just designed, determine thecomponent values of a transistor regulator circuit (based on “Simple TransistorVoltage Regulator Circuit” from the CCS1: If you are to use a center-tapped transformer, you don't need a bridge rectifier; a pair of diodes will do the job. The output voltage will need to be about 13.5 vrms each side of the center tap; this will deliver 19 volts p-p, the rectifier will eat 0.75 volts, the ripple will amount to one more, and you'll have your 17 vDC. Since the filter capacitor will be working into a load of 17/3 ohms, and the voltage decay is to be no more than 2/17 of the output, you can use the exponential decay equation to figure the necessary time constant, and use the load resistance to get the capacitance. (You can punch a calculator as well as I can.) 2: The regulator transistor will be burning five volts at three amps, or 15 watts dissipation. A TO-3 may be satisfactory in this application, but it will be a close call. The rest of the component values can be determined using Ohm's law.

Q:1.Why does transformer action can't take place in a dc circuit?2.on transformer coil what 5% tap means?: you okorder

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:i think transformers: Transformers hands down

Q:I have a 12kV, 30mA neon transformer and a 150V, 3.3A max variac. I want to allow more current throughout the circuit that is being powered but the neon trans can only deliver but so much current but alot of voltage. The variac delivers the current I need but not the voltage.Can I power the neon transformer using the variac and then run a parallel line to the outputs of the neon trans to boost the current? I'll make sure they are in phase so that the variac doesn't absorb the high-voltage output. This configuration is sort of how one would hook up batteries in parallel to allow for more current. Will the neon trans's high-voltage output dominate over the low voltage?If I absolutly cannot do it this way then is there another way using the same components?Thanks,: A pad fixed transformer rated no longer below 250kVa is accessible for this installation. Require the flexibility organization to position in ability provide contained in the 33 Kv to 12 Kv edge. yet another transformer, 12KV/240-100 and twenty volts must be mandatory. An engineer or carry close electrician is mandatory right here.

Q:What is the unit of the transformer?: Transformer (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 purpose can be divided into: power transformers and special transformers (electric furnace change, rectifier, frequency test transformer, voltage regulator, mine transformer, audio transformers, IF transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers , Reactors, transformers, etc.). Circuit symbols commonly used as the beginning of the number. Example: T01, T201 and so on.

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