430MVA/242kV main transformer high quality

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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:	430MVA/242kV
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 430MVA/242kV main transformer can significantly improve the economy of the UHV substation, 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 430MVA/242kV main transformer OLTC auto-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 430MVA/242kV main 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:The specification states that the 35KV substation is capable of obtaining the power supply after the main transformer is powered down. Therefore, in this case, the transformer used should be connected to the power supply side of the circuit breaker. My question is that the main transformer which, the main transformer is not connected to the power supply side of the circuit breaker?: Main Transformer: Main transformer, referred to as the main transformer, English name: generator step-up transformer, referred to as GSU transformer or GSU. The main transformer refers to a unit or substation of the total step-down transformer, its capacity is generally relatively large. Other transformers used as power distribution, commonly known as distribution transformers, the capacity is slightly smaller. On the main transformer protection, as the main transformer, in general, relatively large capacity, requiring a higher reliability of the work. For different capacity of the transformer, the required installation of the protection category is not the same. Transformers used: In general, substation high voltage switchgear need to provide 220V power supply, DC screen also need 220 power supply continued float. As in the operation of high voltage cabinet, there is no low-voltage power supply, so in the high-voltage cabinet set a very small capacity of the transformer. Thus providing the first power supply required for the operation of the high voltage cabinet. When the transformer is put into operation, the low voltage cabinet has the second power supply of the low voltage power supply circuit, and then automatically switches to the normal low side power supply as the operating power source. Features: Thermal stability, high reliability, long service life. Low loss, low noise, maintenance-free. Small size, light weight, less space, low installation costs.

Q:I was planing on buying transformers but my friend told me about skyrim and it looks pretty good, which one is better and funner?: Transformers : Dark of the Moon is wwaaayyyyy better than both. .well actually if you like medieval times games.then sure maybe skyrim is the game for you. try watching walkthroughs of the gameplay on youtube.I don't know you or what you like but however by watching the gamethroughs you'll know which one you prefer :p btw Transformers Dark of the Moon is 50 dollars I think now. since Skyrim is new it's like 60 dollars.and War for cybertron is older.so if you go to a video game store that isn't as well known.you know those stores that sell em cheaper.you can get it very cheap.or look on Craigslists. I got War for cybertron for 15 dollars. I got Transformers Dark of the Moon for 60 dollars ( knew I wanted it cause I watched it on youtube! ) and in my opinion.dark of the moon is waaayyy more fun. sorry if I talked too much.hope I helped

Q:i rememeber when i was a lil kid i used to watch Beast Wars on friday nights. I think it was back in 2000 or so. It was pretty cool too; as opposed to transforming cars, etc, there were transforming animals. also there werent any humans.imo the new transformers animation sucks, though the movie was greatim sure Beast Wars and Transformers are related because they used names like Megatron and Octomus Prime (sp?)so yeah. what happened to Beast Wars?: yea beast wars was old school, and i think its better than cars. im not sure why they changed it

Q:i wann no wat type (kind, year, color) each transformer is, plz add the transformers name (i'd like them from BOTH the 1st and 2nd movie) plz and thank u!!!: Transformers Autobots Cars

Q:How do step up transformers obey the law of conservation of energy?: The regulation of conservation of capability is that capability won't be able to be created or destroyed. A transformer does not make extra capability,yet rather it takes the voltage and will boost it , this might seem to push aside the regulation yet rather in basic terms making extra it reduces the the present. As voltage will boost by using say 10 circumstances the amperage a million/10 of the orginal.

Q:i m studying about the non linearity in systems and transformer is non linear in nature: You will drive the core flux well into the saturation region with a disproportionate increase in iron losses. The magnetising current (which is normally very small) will also increase strongly and disproportionately. The transformer might still function quite well (although with higher harmonic content in the voltage) but especially due to the high iron loss and also because of the increased magnetising current you would have to reduce its rating quite considerably. These are the effects of non-linearity. The higher voltage you would be applying would also place all the transformer insulation under a higher stress, increasing the risk of an internal short or external flashover. You would in minimum have to subject the transformer to a suitably elevated over-voltage test, which it probably wouldn't withstand. This sounds like quite a big transformer and if there is any danger to persons or to neighbouring installations if an accident (explosion, oil spill or fire) were to occur, you, or the responsible person, could easily be facing a negligence or even gross negligence charge for authorising the change!! I definitely wouldn't sign off on that one!!

Q:I have 12 x 12V 10W lamps in series would I be correct in saying I need a 230-12V 120W transformer to suit?: If the lamps are in parallel, a 230 to 12 volt transformer rated 120 watts or more is what you need. If the bulbs are in series, adding 7 more 12 volt bulbs 19 total is perhaps the best fix or you need a 230 volt to 144 volt transformer, rated 120 watts. Both transformers are likely special order items expensive. You should set your 120 watt transformer on a thick metal plate with a fan blowing on it, to reduce the probability of early failure. Better use a 200 watt, or more transformer so it will run cool. Alternately you can get an 86 volt transformer rated about 100 watts, and wire it as an auto transformer. 230 volts - 86 volt 144 volts also likely a special order item, but possibly, about 80 volts center taped, or about 90 volts center taped is stocked by someone you won't make a connection to the center tap. 90 volts will give you about 11.7 volts per bulb slightly dim, but the bulbs will have long life. 80 volts will give you about 12.5 volts brighter, whiter light, but shorter life for the bulbs. Another way to lose about 86 volts is a 150 watt incandescent bulb designed for about 120 volts. This bulb will give a rather dim light with a hint of orange, but it will extend the life of your 12 volt bulbs even if they get 13 volts each, by reducing the starting surge. A 10 ohm, 10 watt resistor can be added in series to lose 8 or 9 additional volts for either the auto transformer or 150 watt light bulb circuit. The 150 watt bulb will likely last more than 2000 hours, with the help of the 10 watt resistor. An incadescent bulb rated about 250 watts at 230 volts will possibly be a good substitute for the 150 watt bulb, but it will give dim red to orange light. Neil

Q:What is the meaning of the high voltage side and the low side of the transformer?: In general, the "high voltage side" refers to the "side of the high voltage side" (high pressure side) "low side" from the power supply to the primary side of the transformer (low voltage outlet) The From the wiring is also basically able to distinguish: high side (into the end) is generally "△" connection, low side (outlet) is generally "Y" connection.

Q:As the title reads, Simply put: How did the original transformers series end? Aswell, how did some of the others, such as armada, energon, and cybertron end?: I don't know

Q:I have a 240v-5v transformer for recharging, and it makes an annoying very high-pitched squeaking noise. What causes the noise?: SQUEEK? That sounds like a high (audio) frequency oscillator. So this sounds like a pulsed regulator, not like a transformer-type power supply. I would guess that your unit is measuring the battery voltage, then applying a pulse of power to charge the battery, then checking the voltage again in a continuous sequence. This would be a switching type charger. 5 Volts - sounds like a personal electronics unit, for instance a cell phone or personal entertainment. Right? 240 Volts - Sounds like Europe. Right? (In America it would either be 120 Volts or some switching supplies are designed to operate from 90 to 250 Volts.)

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