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: Transformer ratio and transformer ratio: Transformer ratio K and transformer voltage on both sides U1 U2 winding turns N1 N2 current I1 Ⅰ2 have a relationship! In the ideal case, the ratio K = U1 / U2 = N1 / N2 = I2 / I1

Q: 27. Two transformer A and B with identical ratings, are to be designed with fux densities of 1.2 and 1.4 wb/m2 respectively. The weight of transformer A per KVA is(a) More than that of transformer B(b) Less than that of transformer B(c) Equal to that of transformer B(d) None28. Transformer action requires which type of flux?(a) Pulsating magnetic flux(b) Constant(c) Increasing(d) Alternating electric flux29. In what capacity transformer natural oil cooling with tubes is used(a) 3000 KVA(c) 500 KVA(b) 30 KVA(d) 750 KVA30. In full rating of transformer is 90 KW at a pf of 0.9, then its KVA rating is(a) 100(c) 90(b) 150(d) 80: 27. (a) More than that of transformer B 28. (a) Pulsating magnetic flux 29. I do not think there is such a limitation on ONAN transformers. 30. (a) 100

Q: All the specifications work (ie. Hz, Watts, etc). But I wanted to know if it would make a difference if I used a capacitor voltage transformer as opposed to a different type. Thanks.: You seem to be asking about a ferroresonant transformer. You can use this type of transformer with electronics. There is an advantage to this type of transformer, but there are 2 shortcomings with them. A ferroresonant transformer does a better job of filtering noise than a standard transformer. Unfortunately, they are inefficient, wasting more energy than a standard transformer and they also create a lot of heat. If you use this type of transformer make sure it's well ventilated. The web site below has a very good article on transformers. The ferroresonant transformer article is just over half way down the page.

Q: Which transformers belong to special transformers: Transformers are generally used for AC voltage conversion if used for other purposes such as changing the frequency of the power supply, rectifying the power supply of the equipment, the power supply of the welding equipment, the electric power of the furnace or the voltage transformer, the current transformer.

Q: I am using an audio transformer in a schematic, but I don't understand why. Can someone explain how a 1000 ohm to 8 ohm audio transformer works? (Radio Shack #273-1380): The transformer is for impedance matching, but in your circuit could be for some other purpose, e.g. I have one in a DC-DC voltage converter, putting out abt. 75V from a 9V battery. Another, I have as an isolation transformer from a computer soundcard to an external circuit. The impedance match function is usually matching a radio circuit impedance to a loudspeaker impedance (8 ohms). So far as pinouts, look in online catalogue. However, the primary connections are green and blue, with a black centre tap. The 8 ohm speaker secondary winding has red and white wires.

Q: I have two questions:1. Can somebody please explain to me how transformer coupling is so good for maximum power transfer? Please be thorough. Is it because of the primary ac resistance and bjt output impedance being equal? I mean this should work because the power on the primary coil is the same as the power on the secondary coil so the power delivered to the primary coil which is the maximum power in this case, would ideally be delivered to the secondary coil, right? 2. And how can transformers be used to increase the overall voltage gain of a two stage common emitter based amplifier, something like: 1) Its basically impedance matching: the relatively high output impedance of the first stage can be matched to the much lower Hie input impedance of the second stage. Also any attenuation caused by the shunt resistance of the bias resistors working against the output impedance of the first stage (as shown in the R-C C coupled figure for question 2) can be eliminated by applying the bias network voltage at the low side of the transformer secondary, with that point bypassed with a capacitor to provide a good ac ground 2) Replace the 4K collector resistor with the transformer primary winding, eliminate the capacitor C3, connect the high side of the secondary directly to the base of Q2, connect the junction of R1 R2 to the low side of the secondary and add a capacitor from that point to ground to provide adequate low impedance at the lowest frequency of interest. Transformer coupling is efficient, but bandwidth is limited by the transformer, and the overall gain will vary with individual transistors. Both of these warts can be improved by applying negative feedback from the output back to the input stage.

Q: Which is good for the transformer?: Recommended Shanghai Zul! Zul (Shanghai) Electric Manufacturing Co., Ltd. is well-known enterprises in China Transformer! Shanghai transformer industry well-known brands, low-voltage dry-type transformers in the field of the leader. The strength of advanced technology, management science. As a well-known transformer, the company's main products are: SGSBK three-phase transformer (imported equipment dedicated transformer, motor-specific transformers, etc.), OSGQZB autotransformer, ZSGZDG rectifier transformer, BKDK control transformer,

Q: im doing a power point and i want to know all i have is that it got started in 84', but who owned it at first and who ownes it now and is it a product? but basically i need a site or a person to tell me how it got to now and i need a site that has nice pics of the first transformers to 2009: Yep, it replace into an 80's comic strip placed out with the help of way of the Hasbro company company company,(who additionally advertised the everyday GI Joe toys and cartoons). The exhibits have been long working commercials for the ever evolving line of toys. The Transformers have been the form till Hasbro have been given right here out with the previous Transformers action image (anime) which pissed each and all the fams off by using fact of certainty they killed off Optimus precise and then dwindled the numerous characters into obscurity with the objective to sell their new line of robots. you will are available the process most of the previous episodes on youtube.

Q: 110kv level, the capacity of about 43MVA transformer models and detailed parameters: SSZ10-50000 / 110 ONAN YN, yno, d11 110 ± 8 × 1.25% / 38.5 ± 2 × 2.5% / 10.5 Rated current (A) High pressure side 262.4 / Medium pressure side 749.8 / Low pressure side 2749.3 No load loss 35.3kw No-load current 0.09% Short circuit loss (kW) High - Medium 200.8, High - Low 202, Medium - Low 157 Short Circuit Impedance (%) High - Medium 10.06, High - Low 17.78, Medium - Low 6.35

Q: And what are the prospects for Transformers 3? I mean, should i just skip it?I forced myself to watch Transformers Twice. Didnt care for it much, either time. Barely, BARELY passable.: I agree! I loved the first Transformers. But the second oneugh! The only thing I liked in that movie were the amazing special effects on the robots. Anyway, here are the reasons, it sucked: 1) Michael Bay did not follow the original script/story that screenwriters Orci and Kurtzman laid out. Here's what they said in an interview: We were very surprised when we saw it, too, and it’s a choice that was made. If anything, it just shows you that we don’t control every aspect of the movie. 2) Production was rushed to meet the premiere deadline. 3) Autobots got shoved to the side for more extended human drama military action. 4) Too much attention spent on CGI at the cost of crafting a good story or character development. 5) I really think Steven Spielberg (exec producer) had a hand creatively in Transformers 1. I guess he was really distracted by other things during the making of the sequel. Shia Labeouf sums it up perfect: We got lost. We tried to get bigger. It's what happens to sequels. It's like, how do you top the first one? You've got to go bigger. Michael Bay went so big that it became too big, and I think you lost the anchor of the movie. I suggest viewing Transformers 3 with very low expectations.

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