220kV single phase traction transformer of AT power supply railway

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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:	3 Winding	Capacity:		Rated Voltage:	25MVA/110kV
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 25MVA/110kV railway balance traction 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 470-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 25MVA/110kV railway balance traction 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 25MVA/110kV railway balance traction 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.

Core: The three-phase three-pillar structure inside and outside the box rolling. Center column for the multi-step cross section. After rolling core using vacuum annealing to remove stress, bending clamping groove. Pull screw to tension the body. Core surface brush special angle glue, to ensure core is not deformed and not rust.

Coil and the body: low-voltage coil made up of 1 to 6 wires together to four layers or double-cylinder type (500KVA and below), or spiral-type. High voltage coil axial direction Oil conduit and high-low voltage main oil gap are Stays curtain structure. Iron yoke insulation and trapezoid pads as one, so that the body uniform compression, body structure using the new safety board positioning, vertical and horizontal orientation, ensuring that is no displacement.

Tank: The ripple tank, sealed structure, no leakage, maintenance-free.

Our service

1. Before the order, you will be provided with our general product descriptions, a series of detailed account for commodity, instructions, quotation sheet and related qualification certificate to have a knowledge of our company and products.

2. After signing the technical agreement, the general assembly drawing, base drawing, drawing information and technical requirements will be offered. The technical requirements of agreement will be implemented strictly to provide new, advanced, mature and reliable products.

3. Guarantee all the process, components, accessories and test for products comply with the national standard or client-specified standard.

4. After products arriving, technicians will be sent to investigate on the site installation supervision, insure the perfect installation in the shortest possible time. During the debugging period, we also assist in the field test and debugging to make sure it running smoothly.

5. The technicians are responsible for the explaining of technical documents and drawing and answering and solving all problems about our products.

6. After sale, our company will make our every effort to fix the products and make sure it put into operation in time if any malfunction caused during the quality guarantee period.

7. We will keep the record of our clients and keep track of our sold products regularly, so that problems can be solved promptly.

Disclaimer

Warranty or exchange does not apply under the following circumstances.

1) Damage caused by your failure to operation and maintenance.

2) Damage caused by power fail.

3) Damage caused by the maintenance or dismantle movement of a non-our-company authorized maintainer.

4) Damage caused by Natural disasters and other force majeure reasons such as earthquakes, fires.

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Q: According to your measurements when we have a step-up or a step-down transformer?: A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors—the transformer's coils. A varying current in the first or primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic field through the secondary winding. This varying magnetic field induces a varying electromotive force (EMF) or voltage in the secondary winding. This effect is called mutual induction. If a load is connected to the secondary, an electric current will flow in the secondary winding and electrical energy will be transferred from the primary circuit through the transformer to the load. In an ideal transformer, the induced voltage in the secondary winding (Vs) is in proportion to the primary voltage (Vp), and is given by the ratio of the number of turns in the secondary (Ns) to the number of turns in the primary (Np) as follows:- Ns/Np Vs/Vp ---------------------(i) By appropriate selection of the ratio of turns, a transformer thus allows an alternating current (AC) voltage to be stepped up by making Ns greater than Np, or stepped down by making Ns less than Np.

Q: Rectifier and rectifier transformer: 1) rectifier transformer is the rectifier device power transformer. Rectifier equipment is characterized by the original input current, and vice president through the rectifier output after the original DC. Converter is rectifier, countercurrent and frequency conversion of the three working methods in general, rectification is one of the most widely used. Transformer used as rectifier power supply is called rectifier transformer. Industrial rectifier DC power supply is mostly by the AC power grid through the rectifier transformer and rectifier equipment and get. The application of rectification change the most chemical industry. Simply talk about the industrial high-power DC power supply. Civil rectifier transformers are commonly referred to as power adapters, transformers, power converters. 2) rectifier (English: rectifier) ??is the exchange of alternating current into direct current devices, can be used for power supply devices and detect radio signals. Rectifier can be vacuum tube, ignition tube, semiconductor diodes, SCR, mercury arc and so on. Generally do not contain voltage transformers. Refers to a wider range. Basically most of the electronic products are in use. 3) folk often put the ballast as "rectifier", inductance ballast is a core inductance coil, rectifier is a rectifier device.

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, Transformers 3 is the working title for the third film in the live action Transformers series, directed by Michael Bay and produced by Steven Spielberg. It is the sequel to Transformers: Revenge of the Fallen and is scheduled for release on July 1, 2011.

Q: I love the movie transformers and cant wait till part 2.Anyone know anything about it specifically???: Transformers actually exceeded my expectations. IT WAS AWESOME! :) The second one has so far been scheduled for June 26, 2009

Q: everyone's been fighting about if jazz from transformers is white or black i think he's just white pretending to be black what do you guys think: jazz was originaLy voiced at cartoon by Scatman Crothers and in 2007 and 20009 movie jazz was voiced by Darius McCrary allso a black guy ! but it doesnt mean that he is a black because he is a robot and in a robots world there is no black or white race! tfwiki /wiki/Jazz_(G1)

Q: Maintenance of a household table lamp, found inside the 220v AC to 12v DC, (with a 12v mirror headlight) Transformer has red, blue, black three into the line, plus or minus two output. Ask why is the three lines? In addition to the line of fire and the zero line, what is the remaining root?: You see how it is connected to the law ah ~ which is connected to the power supply is the power cord ah ~ may also be the designer in order to be able to work at 220 and 110 (some countries are 110) and designed. Why did he do so?

Q: First of all, try not to be bias ;). My birthday is on December 19th, exactly the release date of the Transformer Prime, which is a great tablet, one I think surpasses even the iPad 2. With Steve Jobs gone and the new quad core installed in the Prime, would the iPad 3 be likely to be better than the Prime? Should I just wait for an iPad 3 if so? Thanks :)!: First of all, don't forget that the iPad 3 hasn't been announced and it will probably be a few months, at least, before it comes out. Secondly, there are sure to be spec improvements and additional features in the iPad 3. Whether they match up to the Transformer Prime, however, is anybody's guess. Third, I think the real decision should come down to if you want the Apple environment or the Google environment. Last I checked there are more iOS apps than Android apps, and if you have a Mac, iCloud is a nice thing to keep everything in sync across devices. I personally like iOS, its interface, and the way updates are delivered (as opposed to with an Android device, updates Google produces may not coincide with a new product release or may not be available right away for your device). On the other hand Android is more open, the integration with Google Calendar and all is great, there are less restrictions on what apps are allowed in the Android store, and if you are happy with Android then there's no real reason to wait for the iPad 3.

Q: I took apart a wall transformer before and soldered a single AA battery to the outputs and touched the what was before inputs and it gave me a shock. This is because it stepped up the power to something like 113v. Could I instead of a AA battery use 110 from the wall. Would it do the same thing. Or would it just overheat the transformer. And what would the amps be. I’m trying to make like a 20amp welder for just screwing around with.: You will blow fuses DO NOT TAMPER WITH THINGS YOU DON'T UNDERSTAND a primary winding has enough turns to reduce magnetizing current to a few mA you put lots of volts on a few turns (secondary) and the core will overheat, that's if the primary does flash over (a battery momentarily connected will cause a corresponding stepped up voltage pulse on the primary) A permanent connection will flatten the battery (almost a dead short)

Q: How is the insulation of the transformer divided?: Insulation can be divided into two parts: main insulation and vertical insulation. The main insulation is between the winding and the ground part, and the insulation between the windings.

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