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:Transformer ONAN?: ONAN refers to the natural cooling of oil. Common have the following cooling methods: Oil immersion (ONAN); Oil - air - cooled (ONAF); Forced oil circulation air conditioning (OFAF); Forced oil circulating water cooling (OFWF); Forced to guide oil circulation air cooling (ODAF); Forced to guide the oil circulating water - cooled ODWF).

Q:Transformer is the transmission of electrical equipment: The transformer is an electrical device that converts the AC voltage level to achieve the purpose of power transmission.

Q:I was testing a transformer I had bought, and I tested the voltage at 30v, then i proceeded to test the current, I connected both of the outputs from the secondary to a 1 ohm 25watt resistor, that is one on each side, then I connected my meter to it. I got a reading of 3.2 amps, but then it just kept falling, when I disconnected it, it had gone down to 2.75 and was still going. Does that mean I connected it wrong, I dont see how it could be wrong, but I dont understand why the current was falling. Any help?: from what you said i understand that to the two ends of the secondary you connected the two ends of the resistor and the two terminals of the ammeter(i assume you use an AC ammeter not a DC a DC ammeter cannot be used) ie you connected the resistor and ammeter in parallel with the transformer secondary ammeters must be connected in series only you were actually shorting the output of the transformer this may permanently damage the windings connect it in series with the load resistor like this one end of transformer secondary to one end of resistor, other end of resistor to one end of AC ammeter , other end of AC ammeter to other end of the transformer secondary your resistor wattage rating is less(about one fourth of what is required) you may still use it but make sure you dont connect it for more than a few seconds ( it will become very hot and may burn) you said your reading was fluctuating make sure to use an AC ammeter not a DC one if you dont have the AC ammeter but have an AC voltmeter , make the connections in parallel , using the AC voltmeter this will give voltage across resistor using ohms law VI*R calculate the current

Q:Transformer Amorphous Alloy and Silicon Steel Sheet Advantages and Disadvantages: The use of magnetic properties of the protruding amorphous alloy, used to make the core material of the transformer, and ultimately get a very low loss value. But it has many features that must be ensured and considered in design and manufacturing. The main body is the following aspects: ??(1) amorphous alloy sheet material hardness is very high, with conventional tools is difficult to cut, so the design should consider reducing the amount of shear. ??(2) amorphous alloy monolithic thickness is very thin, the material surface is not very flat, then the core fill factor is low.

Q:LED non-isolated drive transformer (two windings) calculation method: General non-isolated auxiliary windings according to chip drop VCC operating range. T = 1 / f Dmin = Vout / Vin (max) Ton = T * Dmin Id = Io * 0.3 (0.3 for the ripple current coefficient) Inductor voltage V = Vinmin-Vout-0.6 (Schottky voltage drop) Lmin = V * dt / di If there are problems please go to the big bit of the forum electronic transformer plate

Q:I took apart a wall transformer before and soldered a single AA battery to the outputs and touched the what was before inputs and it gave me a shock. This is because it stepped up the power to something like 113v. Could I instead of a AA battery use 110 from the wall. Would it do the same thing. Or would it just overheat the transformer. And what would the amps be. I’m trying to make like a 20amp welder for just screwing around with.: A battery will not work with a transformer. Transformers rely on alternating current (AC), whereas a battery provides only direct current (DC). The voltage at the output terminals will be zero, except for the instant at which you connect/disconnect the battery. Be very careful working with transformers, as they can create deadly voltages. Also, connecting/disconnecting an inductor can create enormous transient voltages across the terminals (especially if a DC current was applied), causing a spark. The step-up equation for a transformer is V1/V2 N1/N2 For example, if you connect the 110VAC wall outlet to a 10,000-turn solenoid, and the output terminals are connected to a 200,000-turn solenoid, the output terminals will be 2200VAC. Alternatively, due to conservation of energy, the current will be inversely proportional to the winding ratio.

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

Q:Electrical Machinery, Electric Machines, 3-phase transformers: Generally if you see three single phase transformers all mounted on one pole( not sure what a hydro pole is?), they are connected to supply three phase service to the customer. Not usually three single phase services, at least in the USA. The three single phase transformers may supply 208Y/120 volt 4 wire three phase, 120/240 volt 4 wire three phase (usually one of the transformers in this configuration is larger than the other two), 240 volt three wire delta or 480 volt delta, or a 480/277 volt 4 wire service., And on and on. This is determined by the voltage ratios of the transformers used and what the local utility supplies as a normal service voltage. Hope this helps, Newton1Law

Q:if i take a small transformer meant to be used at 120v:9v 60hz, and discharge a 360v 100uf capacitor (or similar) into the 9v winding, will i get a high voltage pulse on the 120v winding?: Only at UF(which I am a proud student). I suppose you would as you have at that instant a rapidly changing magnetic field in the secondary winding, but it might occur so quickly or so violently that it may be un-noticable.

Q:Hi there.I have purchased a Stepdown Transformer so i can use a Record Cleaning Machine I am buying from the U.S.It uses a powered suction unit to clean the record.All transformers for use with American equipment have 110v output, but i think your equipment is usually 120v.in I have been told that there is nothing to worry about as 110v out on the transformer is enough to power the equipment connected to it .Our AC output in Australia is 240v but we can use any voltage from 220 to 250. Therefore 110v should be enough.can anyone clarify and tell me it should be ok.Thanks a lot in advance.: Electrical appliances are designed to tolerate the range of voltage. Here in the USA the terms 110 and 120 are used interchangeably as are 220 and 240. Good luck mate!

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