430MVA/242kV main transformer high quality

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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:	430MVA/242kV
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 430MVA/242kV main transformer can significantly improve the economy of the UHV substation, 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 470-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 430MVA/242kV main transformer OLTC auto-transformer. 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 430MVA/242kV main 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 UHV Transformer products.

Q: How we can check the output wattage of any voltage transformer? For example if we buy a voltage stabliser for television or A/C, how we can be certain that the output watts provided by the stabiliser will suit our appliance? Is there any device to check the output watts, if yes, then how to?Please help.: P over IXE Ppower in watts IIntensity in amperage Eenergy in volts voltage times amperage will give you wattage

Q: What is the power transformer, what is the rectifier transformer: Power transformers generally refers to the power of the Department of power supply transformers, transformers in the power grid are mostly power transformers. Rectifier transformers are designed for rectifier systems. Rectifier transformer function: 1. is the appropriate voltage to supply the rectifier system, 2. It is to reduce the pollution caused by the waveform distortion caused by the rectifier system.

Q: i went to see transformers on july 3rd. they had about 5 or 6 previews before the actual movie started. the very last preview showed and party to someone called bob. he was leaving, going to japan. then the lights went out and a big groan was let out and a earthquake happened. they all went out to the roof, and in the distance, a big orange ball was exploding, shooting out fireballs and lava. they only said it was coming out on january 18 2008, and they didn't give the name.please help, i need the name of this movie: It's okorder

Q: I want to know how much the current will increase. But the transformers i'm looking at VCT VT10000 - 10,000 Watts Heavy Duty Continuous Use 110V / 220V / 240V Step Up / Step Down Voltage Transformer or 15,000 Watt Step Up and Step Down Voltage TransformerI figure the whats is the total possible power and if you divide the power by the intial voltage you get the current and if you divide by the out put voltage you get the final current? but what if you input doesn't equal 15000 watts or whatever the power is?: Bascally you are right. Watts is the maximum power, and dividing that by voltage provides amps. The transformer will pass what its load is consuming. If there is not enogh source eupply for the load, the source will burn out or blow its fuse/breaker.

Q: How can the locations and polarity of the windings be tested on the various legs of a core when it has 2 open(circuited) three pahse windings (III and iii)?what measurements are required , assuming that the transformer is so enclosed that only the 12 winding terminals are visible?Ohmmeter , voltmeters , a single phase voltage supply are available.: It is assumed that the primary and secondary voltages are within the range of standard voltmeters,example 440/220 Volts AC.Transformer terminals as you mentioned are 12 terminals.Label the terminals: 1; 2; 3; 4; 5; 6; 7;8;9;10;11 and 12.Let 3 concide with terminalII. With an ohmmeter,check for the end of 1, it should be 4;likewise for 2, the end should be 5; and 7 should end with 10, 8 should end with 11.Look for the end of 3 or III, and label it with 6; iii or 9 should end with 12. Assume for a primary wye connection. With this connection, connect terminal 4 and 7, 5 and 8, and the wye terminal 10,11 and12.With the primary supply disconnected, disconnect also, the load end secondary connection. Impress a single phase 220 volt supply between terminals 1 and 2 of the secondary. Test the voltage between 1 and 2 in the primary. A voltage of 440 volts should register, assuming the transformer ratio is 440/220volts. ATline 3 and 1, voltage should be 380 volts only and so with 2 and 3.Switch off test voltage supply and connect terminals iii,6 and 9 with a small magnet wire, No.20 AWG.Impress the test voltage and measure voltages across :1 -2; 2-3; and 3-1. An equal voltage of440 Volts should indicate if not, change the polarity of III and iii,6 and proceed with the same procedure.If the voltages at the primary are equal, replace the jumper across 6 and 9 with an original jumper wire.

Q: What is the main purpose of the transformer?: When a sinusoidal alternating voltage U1 is applied across the primary coil, there is an alternating current I1 in the conductor and an alternating magnetic flux ф1 is generated which forms a closed magnetic path along the core through the primary and secondary windings. The mutual inductance potential U2 is induced in the secondary coil, and ф1 also senses a self-inductance potential E1 on the primary coil. The direction of E1 is opposite to that of the applied voltage U1, which limits the size of I1. In order to maintain the existence of magnetic flux ф1 need to have a certain power consumption, and the transformer itself has a certain loss, although the secondary load is not conne

Q: I really want to know what a transformer is, how it works, and why it works. I really want an answer that goes down the the atomic scale. I really want analogies. And please don't copy and paste stuff from websites. Please don't worry about getting second comment. The most scientific and well explained answer gets best answer.: I know this isn't what you asked for, but it gives a much better answer than I'm willing to type.

Q: Where is the transformer used?: Transformers are suitable for applications where the voltage level is to be changed Need to change the impedance to match the front and rear impedance of the occasion It is necessary to increase the current supply as a booster

Q: i would say transformers alll the way: i like them both even though i like twilight. I still like to watch transformers. I like them both.

Q: Who knows the density of the transformer oil is how much?: 25 # transformer oil: 895kg / m3 877.6kg / m3 45 # transformer oil: 895kg / m3 879.0kg / m3

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