278MVA/500kV single-phase double winding OLTC converter 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:	one	Coil Structure:	Toroidal
Coil Number:	2 Winding	Capacity:		Rated Voltage:	278MVA/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 278MVA/500kV single-phase double winding OLTC converter 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 278MVA/500kV single-phase double winding OLTC converter transformer. 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 278MVA/500kV single-phase double winding OLTC converter 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.

Q: Hi Guys.I'm a college a student who is wondering which tablet to buy. I really can't decide.I want to have a good tablet that I can type and hand write on it. A Tablet that can play 720p and 1080p mkv files. A Tablet that is good for pdf reading. This is all I want. The problem is these two tablets are really good. The New Ipad is running IOS 5 while Transformer Infinity is running ICS.I haven't had tablet before so I have no experience, please I'm open to any advice.: Lol I am having the same problem I think I might go for the iPad tho because I have heard a lot better reviews for it but it is more money and if it is the keyboard that u really want u can get one that connects over Bluetooth to the I pad

Q: A transformer has a 100-turn primary coil and 1000-turn secondary coil. The primary is connected to a 120-V AC source and the secondary os connected to an electrical devic with a resistance of 1000 ohms.what will the voltage output of the secondary be?what current flows in the secondary circuit?what is the power in the seconday coil?what is the power in the primary coil ?what is the current drawn by the primary coil?: The ratio of teh secondary to primary turns gives you the voltage multiplication on the secondary. Thus N 1000/100 10 So the secondary voltage is Vs Vp*N 120V *10 1200V The secondary current Is Vs/Rs 1200V/1000 Ohms 1.2 A Power in secondary Ps Vs*Is 1440 W Power in Primary has to be the same as secondary (or less due to losses) 1440 W Ip Pp/Vp 1440/120 12 Amps

Q: I have a 150 watt bank of photovoltaic cells that run at 12 volts (PWM mode non-mppt charge controller). My question is, by substituting a dc transformer (one that boosts current and steps down to 12v) for a current boosting mppt, can I run the solar panels at their full rating even though they are connected to a 12 volt battery bank? The 12v batteries, when directly connected to the solar panels, drop the output because the panels output their full current at a higher voltage.I am also wanting to apply this logic to a wind turbine that outputs a maximum of 30 volts dc. I am thinking that if the switching transformer works for the solar panels, it would also work to step down the wind turbine's harsh dc voltage to a current boosted 12v state. Would this theoretically work?: Transformers don't work on DC. You need a DC to DC converter.

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: How is the transformer sorted?: Commonly used transformer classification can be summarized as follows: 1, according to the number of points: 1) single-phase transformer: for single-phase load and three-phase transformer group. 2) three-phase transformer: for three-phase system of the rise and fall voltage.

Q: 50kva transformer price: 1,50kva transformer prices vary according to model prices ranging from 6000-20000 yuan.

Q: hi, so i know at the distribution level transformers are used to step down the voltage to be supplied to the residential/commerial customers. I was just wondering though. what actually feeds the transformers and where are these feeds coming from?also, could anyone briefly explain what is inside an actual transformer such as (primary elbows, secondary, bus bars, etc)thanks in advance!!: Hi pal! A transformer is a device which converts electrical energy. just remember that. now we know energy is E VI.t right? Now a transformer has two ends. one is the primary winding and the other is the secondary winding. winding means wound wires ;ole am inductance wire. the two of them are connected by a metallic core through which magnetic flux flows linking the two windings. Since energy is constant Voltage of primary x Current in primary Voltage in secondary x Current is secondary Now, since the number of turns of the 2 winding are different, thus the flux linkages are different i.e. N x phi so induced emf by faraday's law is different. so if secondary number of turns is suppose 10 and primary is 1000 then if voltage in primary is 1000V secondary is 10V this is how it steps down. so the transformer is FED by a high or low voltage source via busbars. this is as briefly as i can explain without boring ya!! :)

Q: 1. Which type of connection would be the best to use at the beginning of a power transmission line? Which connection would be the best to use at the end of a power transmission line? Explain.2. In wye delta and wye wye transformation, what line voltage should be applied in order to have all transformer windings operating at their rated voltage?3, how do you calculate the percentage of the line voltages?: 1. The transformers at both ends of the transmission line are normally connected wye with the neutral grounded. This is done to provide a 'zero sequence source' for two reasons a. to provide source of ground fault current to a fault on the transmission line to permit that fault to be detected. b. to constrain the elevation of voltage on the healthy phases of the transmission line in the event of a ground fault In order for that wye connection to work, it is usually necessary that the transformer also contain a delta winding. 2. The voltage should be the rated line-to-line voltage of the winding. 3. The line-to-neutral voltage is equal to the line-to-line voltage divided by the square root of three. I don't understand what you mean by 'percentage of the line voltages'.

Q: how to calculate the secondary current of the transformer for example 1200 amps in primary ,primary voltage is 220kv and the secondary voltage is 34.5 kv of the transformer .: That is a good answer 7652 amps. 7300 amps is more realistic, considering transformer losses, but I don't think any one has built that large a transformer, so surprises are likely. Even at 1% that many amps, 3 phase is likely. Neil

Q: What is an isolated ring transformer?: Isolated ring-type transformer is mainly focused on its insulation performance, between the primary and secondary must have a double insulation, so that the isolation of its own high efficiency, effective protection of equipment safety.

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