270MVA/525kV single phase 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:	single	Coil Structure:	Toroidal
Coil Number:		Capacity:		Rated Voltage:	270MVA/525kV
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 270MVA/525kV single phase transformer power plant.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 the 270MVA/525kV single phase transformer power plant. 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 the 270MVA/525kV single phase 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.

Q:I need help figuring out this transformer question. I have no idea how to go about it and any information or help will be useful.A 100-kVA, 60-Hz, 7200-480 V, single-phase transformer has the following parameters expressed in OHMS:Rhs3.06 Rls0.014Xhs6.05 Xls0.027Xm,hs17,809 Rfe,hs71400The transformer is supplying a load that draws rated current at 480V and 75 percent power-factor lagging. Sketch the appropriate equivalent circuit and determine:a) The equivalent resistance and equivalent reactance referred to the high side.b) The input impedance of the combined transformer and loadc) The load component of high-side current;d) The input voltage to the transformere) the exciting current and its componentsf) the input impedance at no load: A 100-kVA, 60-Hz, 7200-480 V, single-phase transformer has the following parameters expressed in OHMS: Rhs3.06 Rls0.014 Xhs6.05 Xls0.027 Xm,hs17,809 Rfe,hs71400 Primary winding is 15*N turns r 3.06 ohms in series with The primary leakage reactance which is L 16mhy(6.05 ohm @60Hz) in series with the magnetizing indctance Xm 17809 ohms 47.24hy which completes the primary series string the core loss is modelled as a 71.4k ohm resistor across the magnetizing inductance the secondary winding is 1*N turns R 0.014 ohms in series with the secondary leakage reactance is L 71.3UHy(0.027ohm@60Hz) the load draws 208.33A (100,000VA/480V) Z 2.304 ohms @ 48.6 deg 2.30448.6 1.786 ohms in series with +J 1.524 ohms(4.042mHy) (75% pf comes from voltage drop is seen from 2.304 ohms but only 75%(1.786 ohms) is resistive transfer from secondary to primary is done by multiplying impedances by 15^2 225 you should be able to do it from here.

Q:if the transformer in a wall charger steps down the voltage from my wall to 120V does this mean i could use it in the reverse direction as a step up transformer? I want to combine 4 car batteries making 48V and plenty of amperage, but what can i use to get it up to 120V for my 1/2 hp motor?: Not you can't really because transformers need AC (alternating current) to work. So your charger has got a rectifier in it and possibly some kind of a regulator circuit. You could use 10 car or motor bike batteries in series to get 120 VDC but PLEASE BE CAREFUL. You could get a nasty shock at 120 volts.

Q:Do you think transformers is a good movie?Whos your favourite team autobots or decepticons?Whos your favourite transformer?And whats the best scene in the film?: On a scale of 1-100 I'd say 10000 I LOVE TRANSFORMERS! ???? oh and my favorite Transformers are Bumblebee, Sideswipe, and Shockwave. I have lots of others that are my favorite i m just too lazy to explain them

Q:I want to get all the DVD'S for the transformers animated series and i was wondering how man series there are and what all they are called. if you could just give me the names of the series and tell me if they are on DVD or not. thanks for the help!!!: Transformers G1: On DVD Beast Wars: On DVD Transformers Armada: On DVD Transformers Energon: On DVD Transformers Cybertron: On DVD Transformers Animated: Season 1 is on DVD. I'm not sure if there were any other seasons made. Transformers Prime: Not on DVD I think this animated series is pretty new. There may be a DVD release in the future, not sure. I hope this helps!

Q:Transformer Wiring and Principle: In the three-phase transformer, each core is wound around the original winding and the secondary winding, the equivalent of a single-phase transformer. Three-phase transformer high-voltage winding commonly used A, B, C, the end with X, Y, Z to represent . The low-voltage windings are represented by a, b, c and x, y, z. The high and low voltage windings can be connected in star or triangular lines, respectively. In low-voltage winding output for low voltage, high current three-phase transformer (such as plating Transformers), in order to reduce the low-voltage winding wire area, low-voltage winding also has six-phase star or six-star star connection. China's production of power distribution transformers are used Y / Y0-12 or Y / triangle -11 two standard wiring method. The number of 12 and 11, said the original winding and secondary winding line voltage difference, that is, the so-called transformer wiring group do not.

Q:Hello everyoneA 240-110 stepdown transformer is used with quite a lot of equipement in my home and I have recently become a bit concerned about the effects that they have on the equipement.Thanks to some web page I stumbled across saying that transformers can 'overheat' your equipement etc.And since most transformers aren't made by any big name brands, there really isn't a way to tell if the one in posession is a 'high quality' one or not.So my question is, do transformers actually damage your equipement?Anyone have expertise in this area?Thank you very much.: Hi. I think the equipment will draw only the current it needs. If the voltage is correct there should not be a problem.

Q:Three-phase transformer how to calculate the current, ah, the formula is?: Very simple S = 1.732 * U * I, get: I = S / (1.732 * U) such as transformer capacity S = 1000KVA, high side 10.5KV I = 54.99 A low side 400V I = 1443A

Q:How is the insulation of the transformer divided?: Insulation can be divided into two parts: main insulation and vertical insulation. The main insulation is between the winding and the ground part, and the insulation between the windings.

Q:I fried a transformer in my lathe. I went to the electrical supply near my house and the got me a new transformer and said it will work. The old transformer is 3 times bigger. they are both 100VA. the voltage on the original is 230v in and 100v out. It powers the on/off switches for the forward/ reverse micro switches. from the micro switch it powers the magnetic puill in for the contactors. The contactor say 100V.will using a 110v transformer cause and problems or issues?Should I return the one I purchased and order a 100V ?I have work piled up and waiting and really need this lathe operational ASAP.Thank You in advance for any information.Earle: Since they are both 100 VA units, capacity seems to be OK. The voltage however should be checked further. For example, you say the unit you removed was 230 volts in and 100 volts out. This is a ratio of 230/100 2.3 to 1. Thus if you have 230 volts on the high side of the transformer, you will get 100 volts on the low side of the transformer. If the new unit you purchased is 230 volts in and 110 volts out then the ratio is 230/110 2.09 to one. So if you have 230 volts on the high side you get 110 volts on the low side. However, I suspect the new transformer is rated as 240 volts high side and 110 volts low side for a ratio of 240/110 2.18 to one. So f the input is 230 volts you will get 105.4 volts on the output. Thus the increase of the output may only be 5 volts, not 10 volts. Bottom line is that the new transformer will work just fine either way. Over-voltages due to switching surges may be ignored as most designs have already taken that into account with voltage variations of +/- 10% normally. Hope this helps, Newton1Law

Q:Hello everyoneMy last question may be a little misleading and I couldn't respond to my own question so please forgive me when I rephrase it again.I have a 65w stepdown Input230/240 AC, Out: 115V AC. 65VA transformer and I wanted to know if I should be concerned about how much electricity the transformer draws just by the fact that it is plugged into the wall socket even when the hardware connected to it is not on.I don't need an exact figure. Just a layman's terms as what your typical transformer would draw. An absolute average idea of the average transformer.If I turn the transformer off, all my appliances will need to be reset when I turn the transformer back on again.So does an average one consume as much as a light bulb, or say something much more. like a computer etc.I just need a general idea. Thank you.: As jack w correctly says, transformers are among the most efficient machines around; more than 99% efficient. The slight warmth you feel when you touch a transformer is the energy wasted as heat. So a 65 watt transformer wastes less than a watt of power when it isn't putting out any power. At the price we pay for power here in NZ, that's not much more than 1/100 of a cent an hour. So the money you waste per day by leaving it plugged in wouldn't even buy you a dog turd.

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