68MVA/500kV standby transformer power plant

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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:		Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:		Rated Voltage:	68MVA/500kV
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 68MVA/500kV standby transformer power plant, 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 68MVA/500kV standby transformer power plant. 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 68MVA/500kV standby 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 UHV construction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of UHV Transformer products.

Q: How to understand the secondary side of the transformer: The side of the step-up transformer voltage is called the secondary side Buck side of the transformer voltage is called the secondary side In fact, by the power through the winding to stimulate the magnetic field called the primary side by the magnetic field induced by the energy called the secondary side If the three-winding step-down transformer voltage is the highest side of the second side of the winding is the second side

Q: How do I determine if a transformer is beyond the normal temp range and is at risk of failure?A 225 kva installed in 1996 is running hot. I removed the cover and using a digital thermal meter read approx 125 degrees F on each winding. 243 degrees F on the top metal (winding support) frame. It's got parallel 750's off the load side and would be an expensive and difficult change.: The first think you need to do is determine what the transformer's ratings are. The fact that i's nominally a 225kVA unit is only part of the story - what kind of insulation does it have, and what is the overtermperature capability of that insulation? Second, you need to determine what kind of cooling the transformer has, and whether that cooling is working properly. Some transformers are cooled only by exposure to ambient air, while other transformers are equipped ;with fans to blow air across cooling fins. Measuring the temperature of the coils using an external thermometer isn't appropriate - the limitation on transformer is the temperature internal to the winding. Is the transformer equipped with an interman temperature sensor? If not, then you can only base you conclusion on loading. I don't know what you mean when you say parallel 750's off the load side. You will need to determine the loading on the transformer, and compare that with the full rating of the transformer including any adjustment for cooling and ambient air temperature.

Q: Devices that convert the car battery's 12 V DC into 110 V AC are easily available. The conversion from 12 V DC into 110 V AC is done in 2 steps. One circuit in the device changes DC into AC and transformer changes the voltage. Does it matter which step is done first and why?Any help would be awesome! Thanks!: transformers do not change DC values. Do not hook a transformer to DC. Depending on how the connections are made, it may be a short circuit.

Q: I have been reading about pulse transformers and i am curious if there exists a pulse transformer that would take 1 pulse/second or even less and convert to very low voltage high current. If not, would it be possible to make one? Any info is very appreciated! Thx!: Pulse transformers can be wound to any turns ratio that is desired. That being said pulse transformers have small cores and therefore handle small amounts of power. You can find cores on those old mother boards that are no longer in service and junk computer power supplies also have a couple of cores. These toroids were normally used as filter inductors to remove spikes from DC or low frequency lines. You can easily rewind them for pulse transformers.

Q: Will the installation of transformers, power supply bureau is how the charges? What basic price, and then what is the plane fee? And then the transformer capacity is not the same as the unit price is how much? How much is agriculture and business? Chengdu area: Peak valley price, one day divided into several periods. Each local price is different, the specific local electricity price can call 95598 advice

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,: If the enter is 24 volts, the output would be 440 volts, yet do no longer try this via fact which you will likely dissipate the transformer. you could word any voltage below the rated enter and the output would be proportionately decrease. in case you word 6 volts, you will get a hundred and ten volts out. i wish this enables.

Q: I broke a small transformer that I found inside of my DVD player, and I would like to have one (not for the DVD player, just separately) I would like the transformer to take in low voltage, such as a few AA or AAA batteries, and I want it to scale that up. Does anyone know where I can get one? If not are there any instructions on how to make an effective yet inexpensive one?Thanks in advance!: A transformer cannot step up or step down DC power. (All batteries are DC). That is part of their nature. A basic transformer is nothing more than two (or more) inductor coils in close proximity, often with a steel core to help with the magnetic fields. All inductor coils are basically a coil of conducting wire, most often copper.

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: It depends what you mean, do you mean from the original 80's show The Transformers or the later show Transformers: Energon, which was part of the Unicron trilogy. The only one I remember small transformers 'activating' in is the second one. If you meant the original, I'd assume you were talking about the cassettes, which Soundwave and Blaster had. They weren't activated with any sort of green device but they were smaller Cybertronians that transformed into tapes and were stored in their 'tape-master's chest. This would include Rumble, Ravage, Frenzy, Ratbat, Lazerbeak and several other with make small appearances (Decepticons). There was Ramhorn, Rewind, Eject and Steeljaw along with a few others. (Autobots) Picture: tfwiki /mediawiki/images2/0/07 Official name: Cassette Next is the Unicron trilogy. In this the main focus of the show was that apart from the Autobots and Decepticons there was another faction, the 'Mini-cons', which were small and powerless on their own, but they could be used as power-ups by the larger 'bots, so they were sent into deep space for their own protection. These ones were 'activated' as such in that they formed a sword or shield or similar that could only be used by a larger bot other than acting independently as a small Cybertronian. They shared a lot of the same names as the 1980's continuity characters, but these are the ones I was talking about, they're about the size of a human. Picture: tfwiki /mediawiki/images2/2/2e Official name: Mini-con

Q: What is the transformer absorption ratio (R60 / R15): Absorption ratio = R60 〃 / R15 〃 For the same insulating material: the moisture or defective absorption curve will change, so you can determine the insulation curve based on the insulation is good or bad, usually in megger in 15 seconds and 60 seconds of the insulation resistance ratio (This is the absorption ratio, expressed by the K value), because the insulation of the degree of moisture increases, the leakage current increase than the increase in the starting value of the absorption current is much more, expressed in the insulation resistance is: megger in 15 seconds and 60 seconds of the insulation resistance is basically equal, so the K value is close to 1; when the insulating medium is dry, because the leakage current is small, the current absorption is relatively large, so the K value is greater than 1. Experience: When the K value is greater than 1.3, the insulating medium is dry, so that by measuring the absorption ratio of the insulating medium, it is possible to determine whether the insulating medium is damped and K is a ratio which eliminates the geometric dimensions of the insulating structure , And it is the same temperature measured under the value, without going through the temperature conversion, the comparison of measurement results is very convenient.

Q: A liter of transformer oil how much jin: (3) arc suppression effect: In the oil circuit breaker and transformer on-load regulator switch, the contact will produce an arc switch. As the transformer oil thermal conductivity is good, and in the arc under the action of high temperature can touch a lot of gas, resulting in greater pressure, thereby enhancing the dielectric arc performance, so that the arc quickly extinguished.

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