840MVA/550kV three 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:	three	Coil Structure:	Toroidal
Coil Number:		Capacity:		Rated Voltage:	840MVA/550kV
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 840MVA/550kV three 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 840MVA/550kV three 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 840MVA/550kV three 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:A lot of people have been discussing the new transformers film transformers dark of the moon-but how does transformers dark of the moon compare to transformers the movie 1986?For those who have seen all three of michal bays transformers films- and Transformers the movie 1986-which do prefer the new transformers movies or transformers the movie 1986?and more Important why?: The 1986 version has better acting on the part of the voice actors, more caring tragedy, more likable Transformers, very atmospheric, and one of the most tragic death's in the history of robot-kind. The first Transformers movie was stupid but fun. The acting in it was okay, the story was incompetent in the fact that they did not explain as much as they could have, bitchy lead actors, and a pretty epic final battle scene. The second Transformers movie is god awful. It is racist, the story is copied from the first movie, the acting is horrid, the characters are bloated bitches that yell all the time, a horrid villain(s), an overactively preachy Optimus Prime, a horrid Optimus death by unknown Decepticon, Transformer balls, bad dirty jokes, Shi Labeouf in robot heaven, Shi Labeouf having a near seizure, Shi Labeouf's mom gets high, and one of the longest unneeded battle scenes in movie history. The third Transformers movie is a step above god awful, racist towards Asians, the story is copied from the first two, the acting is still horrid, Shi Labeouf is self obsessed, Shi Labeouf is mean (he kicked Bumblebee), the Decepticons are cooler but the Autobots are the same, Optimus is still overactively preachy, a blinking camera during the final fight, a horrid Megatron death, a decent twist with Sentinel Prime, bad dirty jokes, Bumblebee getting tickled, a better and prettier actress than Megan Fox, and one of the worst guest appearances in movie history (Leonard Nimoy). C Y I like the old one better. Which do you like better? Also the new Harry Potter has a 100% from all critics.

Q:80 kilowatts of electrical appliances need much transformer?: 80 kilowatts of electrical appliances need 100kVA 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:I have a 25 volt 2 amp transformer from radioshack and a non push dimmer from walmart. The dimmer has two black wires and one green. The transformer has on one side two yellows and a black and on the other side two blacks. I need to know how to hook the dimmer up to an outlet then how to wire it to the transformer.: The number of wires on the transformer don't match with the stated voltages. The two blacks are probably the 120 volts input (assuming this is the US) but the 3 wires on the secondary imply you have a center-tap secondary, possibly 25 volts center tapped at 2 amps. I'm also assuming that the hot wire is sized to operate on 25 volts. The transformer should come with some sort of labels for the wires, if not take it back and get one that does. Once you get the transformer straightened out, here is a wiring list. AC hot from line cord black wire to one side of a 1 amp fuse holder AC neutral from line cord white wire to one of the line connections of the transformer AC ground from line cord green wire to transformer case and to case of dimmer (green) and to metal case this is all mounted in. Other side of fuse holder to one of black wires of dimmer Other black wire from dimmer to the second of the line connections of the transformer One of secondary wires on transformer to one side of the hot wire Other secondary wire on transformer to other side of the hot wire Tie the center tap of the secondary, if there is one, to ground. If not, tie one of the secondary wires to ground. You will note that I included a small 1 amp fuse. You can get a small metal box to mount this stuff in, or a electrical junction box. The latter is better as it has punchouts for cable in and out. Be sure to clamp the wires where they enter and leave the box.

Q:Single bus sub-section for power distribution, transformer with a prepared and dual-use how to understand: One with a preparation: a transformer to run, another cold standby. Dual use: two transformers are running, each other hot standby.

Q:A 8000kva transformer can bring the maximum load: P = 8000 × (60% to 80%) × 0.95 = 4560 to 6080 kW ????? Apparent power capacity is more suitable than the power factor for the load range Maximum load: Pmax = 1.2 * S = 1.2 * 8000 = 9600kW

Q:What is the role of the pebbles in the transformer base: Shandong Yi River Pebble Factory ---- Transformer dedicated pebble production suppliers.

Q:In the transformer load calculation to be calculated when the fire pump: The fire pump is not included in the normal operation of the transformer load, because when the fire pump is running, but also when the fire, the other load had to stop. The usual fire pump test check, the pump start running time is very short, the transformer allows a short time overload.

Q:the use of autotransformers is strictly prohibited.: Double-winding type safety isolation transformer load side and the power supply side is not electrically connected, is safe, and autotransformer primary shared a winding, it has a direct electrical connection with the power supply, unsafe.

Q:I bought a Neon Sign Transformer over OKorder and for a while it worked great. I used it to power a Jacobs Ladder (I wired the transformer straight to the Jacobs ladder). However, now the transformer will turn on the jacobs ladder but after a couple of seconds it will shut off and sometimes make a buzzing noise. What is wrong with it and how can I fix it?: It sounds like your transformer is shot and your chances of repairing it are pretty low. You may have been overloading it and burnt an internal connection. Do you have access to a good ohmmeter? Check the resistance, L1 to L2 and H1 to H2, preferably when it's warm like right after it's stopped working. The high side should be several times higher than the line side. Unless you are really sure you know what you are doing don't even try to repair it. The high side is putting out 8 to 10 KV and if your repair isn't up to it you can bet it will leave a mark.

Q:i have this audio transformer (about the size of a bottle cap) with three prongs on one side and two on the other. i am completely mystified by this configuration. how would i (say for example) hook up this transformer to a 9v battery in order to increase voltage? thx: 9v battery has a D.C. and a transformer only work in A.C. circuits.

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