220kV single phase traction transformer of AT power supply railway

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1 pc/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

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.

Q: actually we are trying to make a dc transformer,in which we want variable dc voltage at primary sidewe are doing this by using a rheostatwhich will change the value of current continously thus accordingly the value of voltage varyare we thinking right or wrong????: What you need is a DC to DC converter, not a transformer. Vicor make the best ones. They will accept a range of input voltges, some of them will accept quite a wide range.

Q: hey Guys. I'm a big fan of Transformer movies. can't wait to see the Transformers-2. Not a real trailer has been released? :( . I would like to know which robots r going to b in the next epic battle?? :): Soundwave. Optimus Prime 3

Q: I have a question can someone explain why transformers get hot in use and why must they not be allowed to get too hot: Simple explanation: a transformer can actually be modeled as an LRC circuit where the L is in series with the R and are both in parallel with the C. L is the inductance R represents the lossyness of the inductor and C represents the capcaitance between the turns. The heat comes from the loss of power through the resistance of the coil. and this lossyness can be described by the Q (quality factor) of the inductor. Q can be described as w(Total Stored Energy/Avg power dissipated) here w is the operating frequency.

Q: A step up transformer has 5,000 turns in the secondary coil and 200 turns in the primary coil. The primary is supplied with alternating current with an effective voltage of 900V. (A) What is the voltage in the secondary coil? (B) If the current in the secondary coil is 20A, what current flows in the primary coil? (C) What power is developed in the primary coil? (D) What power is developed in the secondary coil?: A step up transformer has 5,000 turns in the secondary coil and 200 turns in the primary coil. N1 200 turns N2 5000 turns The primary is supplied with alternating current with an effective voltage of 900V. V1 900V (A) V2 ? V2 N2 / N1 x V1 V2 5000 / 200 x 900 25 x 900 22,500V (B) I2 20A ; I1 ? V1 x I1 V2 x I2 I1 (V2 x I2) / V1 I1 (22500V x 20A) / 900V I1 500 A (C) P1 ? P1 V1 x I1 P1 900V x 500A 450,000W (D) P2 ? P2 V2 x I2 P2 22,500V x 20A 450,000W Yep, the power in the primary is equal to power in the secondary.

Q: I heard somewhere that Steve Jablonsky's orchestral score to the new Transformers movie (which is fabulous!) would eventually be released on CD. Does anyone know anything about this?: It's the coolest movie ever. The tramformers (Giant Robots) looks so real in this movie and the grapics are great.

Q: I know that Cartoon Network showed a couple of commercials for season two of Transformers Animated,but when?To add,the stopped showing those commercials.like,one week after the first time the commercial aired.Did the have second thoughts and decided to cancel it?: Transformers Animated has been cancelled after the end of Season 3. This was announced at BotCon approximately two weeks ago. Currently, there has been no announcement as to what will follow it in the Transformers TV line, other than that there will be something.

Q: I am in a verge of purchasing a house that is located very adjacent to a polyphase transformer. I hear of the stories that say about the adverse effects that are caused by these transformers to various electronic goods that are there in the house. Please clarify.: Poly-phase transformers which are merely 3-phase transformers don't really cause anymore interference than any other transformer. If the thing was up against your wall, then maybe it would mess with radio or cell phone communications, but really your main interference concerns would be if you were near high voltage transmission lines. Why not ask the previous owners or neighbors in the area if this transformer has interfered with their electronics.I doubt it.

Q: I know that in a step-down transformer if I have 10 turns on the primary coil and 5 turns on the secondary coil that the voltage gets reduced by half and the current gets doubled, but is there any other significance?: Often wondered this myself. There must be a reason why you get transformers with 1000 turns on the primary, and 500 turns on the secondary. If there wasn't a good reason why would manufactures bother putting more than 2 turns on the primary and a single turn on the secondary? The ratio remains the same! Think it could be something to do with the impedance the transformer offers to the input, and output circuits. impedance is kind the AC equivalent of resistance. If it's high then there'll be a fair impedance(resistance to the instantaneous flow of current for a given instantaneous voltage. More turnslonger wirehigher impedance? Matching of impedance between circuits can be important to ensure maximum efficiency/preventing echos etc.

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 can autotransformers be used as safety transformers? Isolation transformer is a variable ratio of 1 transformer, why has a security role?: For example, with autocouple input 220V, adjust the output voltage of 36V or 12V to do the use of safety transformers, when the input zero line disconnected, the output voltage to 220V on the ground, such as touch is quite dangerous. Isolation transformer from the safety effect is mainly because the secondary side and the original side without electricity links, as the ratio is not 1, it should be based on the needs of electrical equipment.

Send your message to us

*Email

*TEL

*Quantity

*Unit