63MVA/220KV startup/standby transformer for factory

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Place of Origin: HeBeiBrand Name:


Model Number:




Phase: Coil Structure:


Coil Number:

3 Winding

Capacity: Rated Voltage:


Connection Symbol:

YNd11 Dyn11 YNyn0d11


Cover type or Bell type


MR or ABB or SMS

Packaging & Delivery

Packaging Detail:Mainbody --naked Disassembled parts -- crate
Delivery Detail:3 months



1. CESI certificate
2. High short-circuit withstand
3. Low loss, PD and noise
4. CTQC certificate
5. No leakage




The application of the 63MVA/220KV startup/standby 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 200-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 63MVA/220KV startup/standby 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 63MVA/220KV startup/standby 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.


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Q:What is transformers 3 going to be about opinions?
even if you do close your eyes whilst the Albert Einstein robotic is done it made me experience ill to my abdomen undesirable guy.yet different than that the action picture grew to become into candy Bumblebee and Optimus kicked butt. 8 out of 10 for me. R.I.P Wheeljack
Q:What is the temperature of the dry-type transformer?
Dry-type transformers are generally 130 ° C alarm. Most dry-type transformers now use H-class insulation. Under normal circumstances, the normal operation of the transformer temperature control control settings: 80 ℃ automatic fan, 100 ℃ automatic fan, 130 ℃ high temperature alarm, 150 ℃ high temperature trip. National standard "dry-type transformers" GB6450-1986 on the dry-type transformer temperature limit to make the provisions. 1, the dry-type transformer coil: A. The use of A-class insulation material, the limit operating temperature at 105 ℃, the maximum temperature rise should be less than 60K; B. When using E-class insulation material, the maximum working temperature at 120 ℃, the maximum temperature rise should be less than 75K; C. When using B-class insulation material, the maximum working temperature at 130 ℃, the maximum temperature rise should be less than 80K; D. When using F-class insulation material, the maximum working temperature at 155 ℃, the maximum temperature rise should be less than 100K; E. When using H-class insulation material, the maximum working temperature at 180 ℃, the maximum temperature rise should be less than 125K; F. When using C-class insulation material, the maximum working temperature at 220 ℃, the maximum temperature rise should be less than 150K. 2, the core, metal parts and adjacent materials, in any case, shall not appear to make the core itself, other parts or adjacent materials damaged by the temperature. Now most of the dry-type transformers are used H-class insulation material, it is generally said that the dry-type transformer temperature should be below 180 ℃.
Q:What is the principle of the conversion of the transformer? How to restore the secondary side to the primary side?
1. The principle of the return is the balance of the magnetic potential before and after the countdown. The various energy relations should remain unchanged. 2. Potential and voltage of the count: the transformer once the number of turns W1, the number of turns on the secondary side W2, W1 / W2 = k     There is a return after: E2 '= k * E2                               U2 '= k * U2
Q:Transformer winding maximum temperature at?
From the heat point of view, each part of the winding are the same, the maximum temperature of the transformer winding in the worst part of the heat dissipation, generally in the middle of the inner winding.
Q:What is the significance of the amount of coils on a transformer?
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 need Transformer for my circuit?
not enough information wattage is determined by the load demand and the efficiency of the transformer all we can tell for what you provided would be the step down windings turn ratios what is being powered on the 3 vac side of your project?
Q:How many speakers on a 70v transformer?
I don't think the person doing the first answer understands the open voltage PA type system that you are describing (and I just barely do) but the intention is that you basically can plug in the correctly equipped speakers just like we plug in appliances on a 120 volt line. I don't think what you are describing with the step down transformers works quite the way you say either unless you want lower volume in a specific area.
Q:i need any informations, link about ( three phase to single phase transformer ) , how its work please?
You would get the same voltage out of one output as if you had connected all 3. The other 2 would have lower voltages across them. For example, say the transformer was normally a 240 to 480 3-phase delta. If you were to put 240 across legs A and B, you would get 480 across A and B of the output. I believe the B/C and C/A outputs would have 240 each, since the unconnected C phase would appear as a center-tap to the A and B legs
Q:about power transformer?
it is used to step-up or step-down the voltage when used to transfer electrical energy over long distances. to put it in simple terms - the voltage is stepped up from the power generation plant so that there is a minimal loss of electrical energy when it is being transferred through wires. and it is stepped down when it reaches the destination for usage.
Q:short-circuit and open circuit transformer question?
read material regarding transformers Not just once but say 5 times, till you understand what is said. the transformer has copper loss due resistance of primary and secondary. It has additionally iron loss. The equivalent circuit is a sort of representation that brings in these losses. generally you can apply a low voltage to primary till shorted secondary has a current equal to less than rated current. These measurement details are given. Similarly open circuit measurement details are available. With understanding of how the rest can be calculated using worked examples in texts, you can solve it yourself. attempt this See Lee's book on transformers or schaums series on electrical engg.

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