25MVA/110kV railway balance traction transformer

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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.

Q:1. 6volts going in a 12:220v transformeris the output 220v or less, formulas, computations 2. 12v going in 12:220v transformer (1 amp 220VA)core loss, copper loss, eddy current loss etc etc3. 24v going in a 12:220v transformer. is the 220v, lost of power in the input,: #1 - 107.8, assuming 6.0V into a 12.0V:220V transformer, with 98% efficiency. You can find the efficiency of the transformer, by looking at it's specifications. Most range from 98 to 99%. All this depends on the load as well, as a lightly loaded transformer has less loss that a fully loaded one. #2 - 215.6V. In order to get 1A@220V, you will need to supply #3 - 431.2V. 100% over spec, and bound to fail. I do not understand what you mean by is the 220V, lost of power in the inupt,

Q:I am working on a lengthy project and have one little area that I am not sure how to answer. I need to know how to size a transformer for a building. Does anybody know the equation or method for doing this? The service coming in is 480Y/277V and the step-down is to a 240/120 single phase panel. Any help is great! Thanks: Are you talking about sizing the 'dry-pack' step down from the 480V 3 phase to the 240 volt 1 phase? Or the overall service transformer? The overall transformer must carry all the loads of the building. The 'fudge factor' given by a previous answerer doesn't take into account enough details. If the transformer is located in a vault inside the building, it must be de-rated because it will not get as much cooling from airflow as it would outside. Do heating loads or cooling loads dominate? Cooling loads call for further de-rating as the load will be at maximum when the temperature is at maximum. Heating loads are better as they peak when temperatures are lowest, helping cool the transformer windings. Check with the local utility company. Load growth? You want to have capacity for the loads to grow without having to upgrade the transformer. If you're sizing the step down, you need to know the loads it will be serving plus the efficiency of the dry pack transformer itself (typically fairly low) as that will be part of the load placed on the main transformer. kVA is an acronym for kilovolt-amperes, roughly analogous to kW - kilowatts. If you have 10,000 watts of equipment connected, that's 10 kW or approximately 10 kVA, but you would still need to make all the necessary adjustments above to properly size the transformer. Check with an electrician or the buildings electrical engineer, failure is definately an option, but won't make anyone happy. It's as much art as science and varies greatly on information not given here.

Q:Transformers are divided into several. What is the role of each? To be specific!: Transformer is the instrument that regulates voltage! Transformers can be classified according to their operating frequency, use and core shape. (1) Classification by operating frequency Transformers according to the operating frequency can be divided into high-frequency transformers, IF transformers and low-frequency transformers.

Q:How to make a current transformer more linear? Except change the core.Thank you!: Ideal linearity is reached when B and H are linear. Use air as medium. It may give less output but linearity will be perfect!

Q:I am going to see Transformers tonight at an 8:00 pm showing. Do you think there will be a big line to see it? Should I show up earlier to get a good seat or do you think going a 1/2 hour before the show starts, like I usually do, will be enought time to get good seats?: I would think there will be a fairly long line for it. So I would say maybe go like 45 minutes to even an hour early just to be on the safe side of things. Good luck and hope you enjoy the movie, I know I cannot wait to see it.

Q:i want to know the actual lyrics for the Transformers theme that was re-covered by Mute Math. i heard that they changed some of the lyrics but i would like to know the exact changes, thanks.: i hope this helps - Something evil's watching over you Comin' from the sky above And there's nothing you can do Prepare to strike There'll be no place to run When your caught within the grip Of the evil Unicron Transformers More than meets the eye Transformers Robots in Disguise Strong enough to break the bravest heart So we have to pull together We can't stay worlds apart To stand divided we will surely fall Until our darkest hour When the light will save us all Transformers More than meets the eye Transformers Robots in Disguise Transformers Autobots wage their Battle To destroy the evil forces Of the Decepticons It's judgment day and now we've made our stand And now the powers of darkness Have been driven from our land The Battle's over but the war has just begun And this way it will remain til the day when all are one Transformers Transformers Transformers Transformers More than meets the eye

Q:given that volts x amps watts why dont they just rate a transformer by kilowatts. I havent been able to link the logic behind rating a transformer by KVA, but there must be a reason. If you think you can help me I am eager to learn and will appreciate your help.: Kilovolt Ampere

Q:800KVA transformer itself is the loss of how much?: S9 type oil change 800kVA Calculation results: no-load loss 1400 watts load load loss of 7500 watts. Calculation formula of transformer loss (1) active loss: ΔP = P0 + KTβ2PK ------- (1) (2) Reactive power loss: ΔQ = Q0 + KTβ2QK ------- (2) (3) Integrated power loss: ΔPZ = ΔP + KQΔQ ---- (3) Q0 ≈ I0% SN, QK ≈UK% SN Where: Q0 - no load reactive power loss (kvar) P0 - No load loss (kW) PK - rated load loss (kW) SN - transformer rated capacity (kVA) I0% - transformer no-load current percentage. UK% - short circuit voltage percentage Β - average load factor KT - load fluctuation loss coefficient QK - rated load leakage power (kvar) KQ - Reactive power equivalent (kW / kvar) Selection of the parameters of the above formula: (1) take KT = 1.05; (2) The reactive power equivalent KQ = 0.1kW / kvar when the 6kV ~ 10kV step-down transformer of the urban power grid and industrial enterprise power grid adopts the minimum load, (3) the average load factor of the transformer, for agricultural transformer desirable β = 20%; for industrial enterprises, the implementation of three shifts, desirable β = 75%; (4) transformer operating hours T = 8760h, the maximum load loss hours: t = 5500h. (5) transformer no-load loss P0, rated load loss PK, I0%, UK%, see the transformer signs shown.

Q:How does a transformer effect amplitude modulation in an am transmitter. i would really love this to be explained from the basics as i am not so advanced in electronics. but i would really like to comprehend how this happens form the basics. thank you: The collector of the output transistor or plate of the output vacuum tube in a high power AM transmitter has DC voltage and an audio signal applied to it. The audio signal causes the the transistor/ tube to create AM. The AM radio frequency is shunted off to a tank circuit and then coupled to the antenna. A transformer is used to couple the audio signal to the transistor's collector/ tube's plate. A high power audio signal is applied to the primary side of a transformer and the secondary of the transformer is connected in series to the DC power source to the output device. This creates a varying DC voltage to the output device which creates Amplitude Modulation.

Q:Can someone tell me what the tiny transformers are. I remember that they are somehow activated using some green energy device. I'm not even sure if that is it: There have been several small transformers. Soundwave had Lazerbeak, Rumble,and Ravage in the anime. There was also the autobot version Blaster who showed up in later seasons. You also might be talking about headmasters, Brainmaster(may have only been shown in Japan), or the minicons from Transformers: Armada. There was also an episode where 3 Autobots shrunk down and entered Megatron in order to retrieve the Heart of Cybertron.

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