260MVA/800kV single phase water cooling main transformer for the hydro power station

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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:	single	Coil Structure:	Toroidal
Coil Number:		Capacity:		Rated Voltage:	260MVA/800kV
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 260MVA/800kV single phase water cooling main transformer for the hydro power station.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 the 260MVA/800kV single phase water cooling main transformer for the hydro power station. 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 the 260MVA/800kV single phase water cooling main transformer for the hydro power station, 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:Will the 250KVA, 500KVA, 630KVA Van transformer size,: 250KVA, 500KVA, 630KVA Van transformer size, size: length 4.6m, width 2.5m, 2.4m high. 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). In electrical equipment and wireless circuits, commonly used as lifting voltage, matching impedance, safety isolation and so on. 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: distribution transformers, power transformers, sealed transformers, modular transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric transformers, rectifier transformers.

Q:I saw the first one, thought it was great, and the second one was even better. But are they planning on making another one? If so, do you know what its going to be about?IMO, i think it should be about Unicron, yes that would be kool haha.: Yes, they are, and I agree with you on the first one, but the second was called the worst movie of the year and won over 5 Razzie Awards (Awards for Bad Movies)

Q:A CD player uses two 1.5 v batteries. If you want to plug it into a 120 v outlet, what kind of transformer will you need (Step up or Step down)? What must be the ratio of the number of turns in the primary to the number of turns in the secondary?: You will need more than just a transformer to do the job. What you need is a power supply that has other components like diodes. and capacitors, As the other answerer said, it is easiest to buy a Universal Adaptor , with an adjustable (by switch) output voltage and output polarity and they come with an assortment of connectors. If you really want to build a power supply then first consider that the peak value of the 120Vac-?мs source 120√2 ≈ 170 volts. You need 1.5 + 1.5 3 volts (if the batteries are in series) so you'll need a transformer of about 170 ? 3 56:1 (stepdown) Depending on the filtering used, and the losses, and the actual voltage level at your home outlet (I've seen ?мs values from 110 Vac to 125 Vac), a 45:1 transformer would be better. The transformer must be rated at 60 Hz.

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.: You need to a have a rectifier to convert AC to DC, Before designing a Rectifier, You should make the specification of your input in terms of 1. Voltage 2.Maximum current requirement

Q:I have a bulb that currently uses a 120V primary to 6V secondary transformer. The load is a 30Watts. I would like to know what transformer I could use to power 8 bulbs (6v 30W each) ? Thanks. How can I calculate that?: Assuming you wire the bulbs in parallel. You need a similar transformer (6v secondary) but one that is rated at 240 watts (or a bit more), 40 amps. Note that the current will be 40 amps and will need quite a heavy wire, #4 or 5. You could also put the bulbs in series, and would need a 48 volt secondary, still at 240 watts. You would have problems of any series string, if one bulb goes out, they all go out. You can also use parallel series combos, 3 pairs, or 2 strings of 3 each as a compromise. edit. Later thought of another alternative that may help. Get a transformer with a 12vCT 240W secondary. Wire like you would 2 phase house wiring, 3 bulbs to each outside terminal, and all 6 to the CT. This means the wire only has to handle 20 amps and can be smaller, and you will not have the series string problem. 12VCT transformers are fairly common. Or if you can find it, and the wiring is still a problem, get a transformer with 2 secondaries each of 12VCT at 10 amps.

Q:If load loss of a transformer at full load is 100kW, the load loss at 50% load will be a) 50kW b) 75kW c) 25kW d) 100kW. i think its 25kW because load loss is inversely proportional to the square of loading percent. kindly explain . is it right.: Yes this is right. There are two losses in a power transformer: iron losses and copper losses. Iron losses in the core depend on the flux (hence the voltage) and the frequency. The copper losses come from I^2*R losses in the windings, so they depend on the load current. The flux in the core doesnt change when we change the load, only the current through the windings, so your reasoning is correct.

Q:even though the output voltage of a transformer can be much larger than the input voltage, the power output is nearly the same as the power input.Determine the relationship between the input and output current and the number of turns in the input and output coils.help!!!!!!!!thank you: If turns ratio is N, output turns divided by intput turns, then voltage ratio is also N, and current ratio is 1/N For example, a 120 VAC transformer with a 12 volt 10 amp secondary will have a turns ratio of 1/10, a voltage ration of 1/10 (12/120) and a current ratio of 10 (1 amp in primary, 10 amps in secondary) .

Q:i took it out. on one side of the transformer i have a black and a red im hooking those up to a battery on the other side i have five wires 2 red, 2 white, and 1 blue i dont know what these do or how to get current to them. does anyone know how to complete the circuit???: You are trying to duplicate the Kettering ignition. Momentarily touching a battery to the lowest ohmage winging will usually get you a spark from one or more of the other windings. The old (my era) radios had a secondary to produce high voltage 400-600 volts (often centertapped) and a filament winding 5-6 volts. You would touch the battery to the filament winding and get the spark from the 4-6 hundred volt winding. If you used 110 volts ac on the black and red wires you would get a continuous 4-6 hundred volts AC from the secondary winding with enough amperage to kill someone.

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 been telling everyone that I would never get the IPad because it doesn't do anything. A tablet is a great idea, but the IPad has way better potential. The IPad is currently useless. You could have music, movies, web on the go, books and games with an ITunes App store. Those are pretty much the highlights.The Asus Eee Pad Transformer on the other hand is a tablet that has music, movies, web only with wi-fi, books games, Android App market, and what i'm really looking for in a tablet, the ability to view and modify microsoft office documents (word, excell, power point). The advantage that the Transformer has is a detatchable keyboard, so it can be used as a type of netbook or tablet. The plus about the keyboard dock is that when your tablet needs charging and you connect it to the dock, it will recharge your tablet. Total battery life of the tablet plus dock is 16 hours(8 hrs/e).So now, is ther anything out there similar to this Eee Pad Transformer worth considering? Should I get it or not?: ASUS Eee Pad Transformer Tablet is very responsive and has lots of apps that provide me with convenience and entertainment. The keyboard layout is better when you rotate it upright than when it is in landscape mode. There is a nice bezel area to hold the tablet without getting your fingers onto the screen. Says on the website you can sync it with your home computer, but I haven't done that yet. I think I might buy the keyboard dock because typing on a touchscreen is very slow. PROS: Fully customizable Tons of apps(honeycomb apps are growing) Great price Gorilla Glass Cons: Short charger cable no usb port besides the one that is for charging and connecting to computer

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