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.

Q:Transformer ONAN?: Transformer ONAN cooling method for the internal oil natural convection cooling, that is commonly referred to as oil-immersed self-cooling. The cooling mode of the transformer is determined by the cooling medium and the circulation method. Since the oil-immersed transformer is also divided into the internal cooling mode of the tank and the external cooling mode of the tank, the cooling mode of the oil-immersed transformer is represented by four letters. The first letter: the cooling medium in contact with the winding. O -------- mineral oil or ignition of more than 300 ℃ of insulating liquid; K -------- Insulation liquid with ignition point greater than 300 ℃; L -------- ignition can not be measured insulation liquid; The second letter: the way the internal cooling medium is circulated. N -------- The oil flow flowing through the cooling equipment and the windings is a natural thermal convection cycle; F -------- The oil flow in the cooling equipment is forced to circulate and the oil flow flowing through the windings is the thermal convection cycle; D -------- The oil flow in the cooling equipment is forced to circulate, at least in the main winding oil flow is forced to guide the cycle; Third letter: external cooling medium. A -------- air; W -------- water; The fourth letter: the way the external cooling medium is circulated. N -------- natural convection; F -------- Forced circulation (fan, pump, etc.).

Q:I have a doorbell that quit working. I don't know how to tell if it is the bell or the transformer: Verdugo: go to the transformer and check for power coming out you should get a 24 volts dc. Then, check for power across the switch you should get the same, then check for power at the bell. If you have power at the transformer and not the switch then re-wire the system. The key is having power. If you have power at the switch and nothing happens when you press on the switch and you do have power at the door bell when you press the switch then the bell is bad. That simple. Just follow the circuit. and just comdem where it stops. you can also check for continuity at the switch. if you don't get any signal when you press on it. the switch is bad.

Q:How to build inverters using ferrite core transformers, details assemblies.: Google joule thief, for some really simple circuits that produce several volts 90k hertz ac for powering one LED from one almost dead cell at less than one volt. Yes, ferrite core, sometimes only one winding, but a second winding can be the output voltage. Possibly the circuits can be scaled up for more power out and a somewhat lower frequency.

Q:i want what does a transformer exactly do and not how it works: A transformer is used to increase or decrease voltage, but only for alternating current. It won't work with direct current. When a current alternates in a current carrying conductor a magnetic field expands and collapses, changes polarity and expands and collapses again. It then repeats the process for each cycle of the alternating current. If you have another current carrying conductor within this changing magnetic field, then another current is induced into that conductor as a result of the magnetic field cutting the conductor. This is called induction. So an alternating current in one conductor can induce a current in an adjacent conductor. In a transformer we have two coils, the primary and the secondary. If we have twice as many turns in the secondary to the primary we have a step up transformer - it steps up according to the ratio of turns between the two coils. Here the ratio oi 2:1 so the voltage is increased by 2.

Q:can someone please give me transformers war for cybertron ps3 controlls: Don't know

Q:What is the transformer capacity ratio? Capacity than 100%.: Have not heard, you say is not the main transformer parallel run between the main transformer and the capacity and capacity of the ratio, or the meaning of such I made a change, you say is not: the transformer once measured capacity can be transferred to the secondary side or three times, such as three winding 50000KVA main transformer, 100/100/100, is the primary capacity can be all to the two Secondary use, you can also use all the three times, which is mainly and the main transformer winding, clip and so on factors

Q:I know that if I needed 600 watts at 120 volts that I would need at least 5 amps, but does the step down create a difference in amperage when using a transformer converting the 120v. to 12v?: A 120 volt-to-12 volt step down transformer has a 10:1 ratio. This means that the voltage coming OUT of the transformer will be 10 times less than the voltage going IN, and the amperage coming OUT the transformer will be 10 times more than the amperage going IN. If you connect a 60 watt 12 volt car headlight bulb to the output of your transformer, there will be 5 amps flowing from the transformer to the bulb, but only 1/2 an amp flowing from your wall outlet into the transformer. If you connect 2 bulbs, you would have 10 amps coming out, and 1 amp going into the transformer. If you connect 10 bulbs, you would have 50 amps coming out, and 5 amps going into the transformer, which would be the max for your transformer. As you can see, if you have less voltage, you need more amperage to do a given amount of work. A 60 watt household light bulb needs 1/2 an amp at 120 volts, and a 60 watt automotive bulb needs 5 amps at 12 volts. Both bulbs use the same amount of power and provide the same amount of light. Amps times volts equals watts. Watts is the actual amount of power being consumed, regardless of what the voltage or amperage is. You pay for electricity in watts per hour.

Q:Calling all fans of Transformers! I am looking for anyone to tell me if Transformers Animated is coming back for a third season on Cartoon Network. The reason why I am asking this question is because I recently bought the second season of the show and noticed that they have a lot of information on new characters as a special feature and I am wondering if those characters will be in the third season of the show.: unlikely they will not

Q:if i take a small transformer meant to be used at 120v:9v 60hz, and discharge a 360v 100uf capacitor (or similar) into the 9v winding, will i get a high voltage pulse on the 120v winding?: You sure will, as everyone else has said. An old fashioned way of generating that voltage in a more constant fasion is to get ahold of an old electromagnetic buzzer. You might even find one in a hardware store. Put the buzzer in series with a battery and the low voltage side of the transformer, and turn it on. The buzzer makes and breaks the circuit by pulling the armature towards an electromagnet when power is applied. The Armature is basically configured as a switch, when the armature is pulled to a certain point, the switch opens and the magnetic field turns off. When the armature springs back, it makes contact again and the process repeats. This switching on and off generates pulses to the transformer at a steady rate, and the HV pulses are seen at the other side of the transformer. You dont even need that capacitor. NOW LISTEN, THIS CAN BE DANGEROUS! The HV Pulses can shock you. DONT TRY THIS AT HOME!!! BE CAREFUL !!

Q:Can a european power outlet handle a 5000 watt power transformer?: A Power Transformer is usually rated in KVA, or Killo-Volt Amps. Hard to answer your question without the right info on the size of the X-fmr, What it is being used for, and the number of taps on said X-fmr. An appliance that consumes 5K Watts of power can be translated to about 7 Amps @ about 100 to 120 Volts A.C. It can also be translated to about 3.5 Amps @ 200 to 240 Volts A.C. I like to over rate things in my calculations, for safety sake. That way, there are no accidents in adding up figures wich could possibly cause a circuit overload. Frequency of the line doesn't really matter, unless you are converting power for an imported or domestic unit, whatever the case may be. Consult your local friendly electrician for other details.

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