500MVA/765kV substation auto-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:	500MVA/765kV
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 500MVA/765kV substation auto-transformer 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 application of 500MVA/765kV substation auto-transformer. In order to make the products applicable to any substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity 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 500MVA/765kV substation auto-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 OLTC Transformer products.

Q: I wanted to watch the transformers cartoons but because there is so many I don't know which to watch first, seconds etc.Can you please tell me in order which to watch?I'm watching Transformers Season 1 episode 1 atm.THANKS: G1 or Generation One is the original (first)1984 Transformers SeriesWhen watching G1 the order goes this way to make sense of it 1.Season One 2.Season Two 3.Transformers The Movie (1986) 4.Season 3. 5.Season 4 (Rebirth only 3 episodes) 6. Then the Japanese take over the series (It ignores the events of the Season 4 and creates its own starting point) Transformers The Headmasters Transformers Super God Masterforce Transformers Victory Transformers Zone 7. G2 (From the 90's is G1 just repackaged with crappy computer effects) 8. Beast Wars (follows the G1 storyline with there future ancestors) 9. Beast Machines (Beast Wars countinued) each series after these are basically their own thing .unrelated.except the Unicorn Trilogy (Transformers Armada, Transformers Energon, and Transformers Cybertron.)

Q: I don't know how this conversation started today, but a couple of my friends asked me who would win in a battle Voltron or the Transformers. They did not specify which version of Voltron or which group of transformers. Give me a scenario and tell me what you think!: i would have to pick the transformers only because in either group there are more than one of them as to where Voltron is all alone and probably wouldn't hold up to much against a bunch of transformers.

Q: What are the specifications of the transformer capacity?: The choice of transformer capacity has a great impact on the comprehensive investment efficiency. Transformer capacity selected too large, there "big horse car" phenomenon, not only a one-time investment, no-load loss is also large. Transformer capacity selected too small, transformer load loss increases, economically unreasonable, technically not feasible.

Q: I went to go see transformers yesterday and one of the previews shows a bunch of people at a party with someone videotaping the party. Then there are explosions in the distance and at the end the head of the statue of liberty lands in the street. They don't say what the name of the movie is but it has a january of 2008 release date. Does anyone know the name of this movie?: Cloverfield, which revolves around a monster attack in New York as told from the point of view of a small group of people, is being produced by J.J. Abrams. It is being directed by Matt Reeves, who co-created Felicity with Abrams, and is written by Drew Goddard, who has worked with Abrams on Lost and Alias. The movie, which is believed to have a relatively modest budget of about $30 million, began shooting in mid-June in New York. With Transformers generating huge tracking numbers in the weeks before its release, the studio decided to put footage from Cloverfield in a teaser in front of Transformers to build buzz. Cloverfield might just be a working title though. It is still being shot in New York.

Q: I have a 240v-5v transformer for recharging, and it makes an annoying very high-pitched squeaking noise. What causes the noise?: Normal transformers with iron laminated cores operate at 50-60Hz (50-60 times a second), but transformers in modern cell-phone chargers and PC power supplies require a higher power than would be possible for the given size restraints. A 240v to 5V @ 1A 50-60hz transformer would be the size of a deck of cards and would weigh several kilograms, but if you replace the core of the transformer with a ferrite material (powdered iron) and switch the primary winding at high frequency, say 20Khz or more (20 thousand times a second) the size of the transformer shrinks to the size of a small coin. The ringing sound you are hearing could be caused by several things: 1. It's operated at a near-audible frequency, like 19Khz (not very likely) 2. It's under very high load condition and it's struggling to meet the power requirements and as a consequence the duty cycle of the PWM has increased which can make a chirping sound. 3. It's defective or dying, and it's having a hard time regulating the output voltage and it's excessively modulating the PWM. 4. You are young and young people have better than normal hearing in the higher end of the frequency range and you might be hearing a harmonic of the higher than audible drive frequency. Hope that answers your question :)

Q: Can a transformer having a given VA rating at 50Hz handle more power at a higher frequency, say, 300Hz or 400Hz?I want to build an inverter to run an 11 watt compact fluorescent lamp. Since these devices rectify the supply directly, there does not seem to be any good reason to feed the lamp with 50Hz.If my understanding is correct, the core has to be able to store up to one half-cycle's worth of energy in the magnetic field (which will then be released out of the secondary winding in the form of electricity) to avoid going into saturation and overheating. So at twice the frequency, it should be possible to push twice as much power through for the shorter half-period without saturating the core. (Actually, probably a little less than twice as much, as there will be more resistive heating; but transformer wire is often slightly thicker than it really needs to be, just because it's less likely to break in the winding machine.)So can I over-run a transformer this way, or is there some gotcha that I've missed?: The equation V 4.44fNaB determines what is required for a transformer to avoid saturation. V is the voltage, f is the frequency, N is the number of turns of wire in the winding, a is the area of the core, and B is the peak magnetic flux density. The transformer has presumably been designed so that the peak flux density is as high as it can be without saturating the core. For an existing transformer, V/f a constant. If you increase f, you can increase V so that V/f remains constant. However, the hysteresis losses increase in proportion to the frequency increase and the eddy current losses increase in proportion to frequency squared. In addition, skin effect will increase the copper losses at higher frequencies. Reducing the copper losses by reducing the current would compensate for the skin effect. Reducing the copper losses would tend to compensate for the increased iron losses, but it is hard to say how much a cooler coil will compensate for a hotter core.

Q: can the amps rate be increased by using transformer from 10amps to 120amps.: Transformers can increase or decrease the current, they can also do the same to the voltage. So yes transformers can increase the current but it will decrease the voltage at the same time. Hope this helps!

Q: How is the insulation of the transformer divided?: Transformer insulation can be divided into internal insulation and external insulation, the insulation is part of the tank insulation, external insulation is the upper part of the casing and the insulation between each other.

Q: i wanted to know what the new transformers movie about?: its about transformers.

Q: Transformer tap adjustment there are several ways? What are the advantages and disadvantages?: There are two ways to adjust the tap in the transformer. 1, no excitation adjustment or no taps. 2, with taps. Their advantages and disadvantages are as follows: 1, no taps: taps when the transformer must be shut down after the power, the advantages of safe and reliable, but the disadvantage is to adjust inconvenient, and often because the tap position can not meet the needs of less. 2, with taps Advantages: easy to adjust, do not have to turn off the transformer power can be adjusted, and the general tap position more easily meet the requirements. Disadvantages: due to load adjustment prone to problems, high cost, compared with the same capacity transformer volume, taps device maintenance needs a long time to blackout.

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