380MVA/525kV single-phase double winding generator transformer Power Plant

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Place of Origin: HeBeiBrand Name:


Model Number:






Coil Structure:


Coil Number:

2 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 380MVA/525kV single-phase double winding generator transformer Power Plant.can significantly improve the economy of the OLTC substation, and matches well with the transmission capacity of OLTC 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 the 380MVA/525kV single-phase double winding generator transformer Power Plant. In order to make the products applicable to any OLTC substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity OLTC 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 OLTC 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 OLTCtransformer 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 OLTC Transformer’s right at the first time once again filled the gap in the field of OLTC transformer research after Chinese transformer industry overcame the difficulty of integral transport of the 380MVA/525kV single-phase double winding generator transformer Power Plant, 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.


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Q:transformer electronic question?
You can tell roughly how much power it can handle by the size and weight. Old style power adapters (transformer types heavy), like you plug into the wall, provide 5-10 watts or so and weigh 4-10 ounces. If it is really small it would be a signal level transformer and be in the milliwatt range. The voltage is somewhat irrelevant except to the output. Most transformers will take hundreds of volts before the insulation breaks down. What you can do is find a current limited 10VAC (or so) power source and place it on one side of the transformer. Measure the other side and you will discover the ratio. 30VAC would be a 1:3, 3.3VAC would also be 1:3 but your source would be hooked to the large winding. If you don't know much about electronics, stay away from hooking anything to a wall outlet, the current there is a couple hundred times a lethal dose. Keep your mistakes to letting the smoke out a a few low cost devices. A small wall outlet transformer is a safe way to experiment as the line voltage is isolated and all the shock you can get is limited to the secondary or output of the transformer.
Q:In the transformer load calculation to be calculated when the fire pump
The fire pump is not included in the normal operation of the transformer load, because when the fire pump is running, but also when the fire, the other load had to stop. The usual fire pump test check, the pump start running time is very short, the transformer allows a short time overload.
Q:Transformers xbox 360?
Movie: Transformers: The Game (2007) Transformers: Revenge of the Fallen (2009) Transformers: Dark of the Moon (2011) Non-Movie: Transformers: War for Cybertron (2010)
Q:Give me a detailed description of what happens in Transformers 1&2?
here okorder
Q:Transformer voltage range of 10.5 ± 2 * 2.5% kV and 10.5 ± 5% kV What is the difference
1, the voltage range is the same, are 10kV ± 5%; 2, the difference is that the accuracy of different voltage regulator, 10.5 ± 2 * 2.5% kV transformer sub-switch has five stalls, respectively, 10.5 +5% kV, 10.5 + 2.5% kV, 10.5kV, 10.5-2.5% , 10.5-5% kV; and 10.5 ± 5% kV transformer section switch has three stalls, respectively .5 +5% kV, 10.5kV, 10.5-5% kV; 3,10kV transformer sub-switch three more for the power failure regulator transformer, and sub-section switch five for overload regulator of the transformer, relatively speaking, the fifth gear than the third gear section switch Much more complex, so the price should be slightly higher for the load change is relatively large, the voltage quality requirements of the relatively high important occasions.
Q:how do i tell if my transformers are G1 or real?
this is defined in the action picture, which occurs between Season 2 and Season 3. additionally, word that new characters ensue in particularly some episodes devoid of rationalization, and not in easy terms in Season 3.
Q:How to test E-I Transformer having 10 terminals (pins) 5 on each side ? thanks?
If a transformer has shorted turns, every winding will show drastically reduced inductance than is required for the circuit to operate. For example, the inductance of an audio transformer has to be at least L Z/(2piF), where F is the lowest frequency, audio ~20Hz and Z is the circuit impedance. So an 8 Ohm speaker winding should have 60mH or more inductance. The resistance of the winding should be less than 10% of the operating impedance. The maximum operating frequency of a transformer is something less than the self resonance and the minimum load is that which provides critical damping of the self resonance. So large transformers just work better since they have more inductance and less resistance With a signal generator, scope and some series resistors, you can find the inductance etc.
Q:What is the reactive power compensation of the transformer?
Transformer reactive power compensation is to compensate for the transformer to form the power required by the electromagnetic field, the reason why called reactive power, because it is only exchanged, not consumed. Reactive and active in fact have the same physical properties, in the transmission and use of the process is not part of what is active, that part is reactive. But they are different, there must be other forms of power to be able to transform, no power is not needed.
Q:What exactly is the history of the Transformers.? (Starting with the comics)?
I am a fan but I haven't been able to find that out myself, if you find out let me know.
Q:Transformer step up 15V ac to 80V ac while its step down ratio is 30:1(240 to 8 V ac). how possible ?
It will, but you have to realize that the series resistance of the primary (which is now your secondary) is getting in the way. I am going to guess that this is a very small transformer, capable of one or two VA at most. The rating is a little tricky too. A 240V-8V transformer puts out a significantly higher voltage, maybe 20-30V, with no load. It's rated at 15V because under a load, with magnetic and resistance losses, the effective turns ratio is lower. Used in reverse, the opposite problem exists, because your actual turns ratio is much higher than 30:1. Edit: If it wasn't for silly ideas a lot of inventions wouldn't have been made. The secondary probably doesn't have enough turns to provide adequate self-inductance at 240 volts. It would just act like a short and burn out. There is also a possibility that there is not enough dielectric strength between adjacent windings or the frame to prevent arcing, but most transformers are designed to withstand thousands of volts so this is less likely. If possible, I'd recommend trying lower voltages (perhaps 8V from another transformer), and measuring the current with the primary (now the secondary) open. Put a load resistor in there to start just in case. If you're drawing more than a few milliamps, don't try hooking it up to the mains.

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