400MVA/230kV power transformer exported to USA

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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:	50000 63000 80000 100000 120000 180000	Rated Voltage:	400MVA/230kV
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 400MVA/230kV power 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 400MVA/230kV power 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 400MVA/230kV power 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:I am building a high voltage air cored RF transformer.The transformer primary will be powered by a 12V square wave signal around 5-20kHz. The secondary needs to put out at least 1kV at very low amperage (less than 1A, the lower the better).The output will be used to charge a high voltage capacitor in a resonant circuit.What considerations I need to take into account in building the transformer?Thanks for all the help!: Last transformer I made had a 1000 volt secondary, a 28 volt primary, ran at 22kHz, and a 20mA capability. It was wound on a ferrite form and was a cube about 1.5 inches on each side. I had a lot of difficulty keeping it from shorting out. I used lots of special HV insulating tape between winding layers, and managed to get a few working, but it was difficult. It was used in a voltage doubler to generate 2500 volts DC, so the entire winding had to withstand that voltage. Remember that there are only a few volts between consecutive turns, but after a hundred turns, that builds up to hundreds of volts. .

Q:Where is the transformer used?: You ask more general, there are many kinds of transformers, 1 is the power transformer, it is 10,000 volts drop to 380,220 V commonly used low pressure for us to use. Small transformers are 220V voltage reduced to household appliances used when the operating voltage rectified as electrical power. High-frequency transformers are generally used as switching power supply pulse output transformer. High-frequency signal transformer only a few turns of the coil, the transmission of high-frequency signal. Simply say this kind of bar, a wide range of various types of transformers.

Q:I know that vector groups basically determine the phase shift, and paralleling two transformers with different phase shifts is a genuine disaster.Some phase shifts can occur due to difference in the dot place, but for Wye-Delta connection the phase shift is 30 degree even with same dot on the primary and secondary. Why ?: Phase Shift Transformer

Q:I can find them at Wal-Mart, but the smallest size they have is a 4/5 and that is too big. I am looking for 3T or 4T sizes.I saw a Transformers jacket in size 3T and 4T at Wal-Mart, but they didn't have any shirts.Thanks!: You can buy those Transformers or Ben 10 clothing in Kmart,Big W, some chinese shops and OKorder.

Q:Transformer and the middle of what is the difference: Often referred to as the transformer is the frequency transformer, is used to change the size of the AC voltage electrical equipment. It is based on the principle of electromagnetic induction, with the same frequency, between two or more windings, the exchange of AC voltage and current to transmit electrical energy of the static electrical equipment.

Q:Why is the transformer ah?: Transformer principle is based on the principle of electromagnetic induction made, the transformer has two separate coil sharing a core. Respectively, called the primary coil and secondary coil. When the direction and size of the alternating current change with time, when the transformer is connected to the alternating current, the alternating magnetic field is generated in the core of the transformer, and the AC voltage of the same frequency is induced in the secondary. The turns ratio of the primary winding of the transformer Equal to the voltage ratio. Transformer can only change the AC voltage, can not change the DC voltage, because the DC direction and size is constant, through the transformer will not produce alternating magnetic field.

Q:can anyone pls explain to me about electronics .I mean in simple words to let me know,what does a transformer an i.c. and all that we see on an electronic board ??: TRANSFORMER: transformer is a device that transfers electrical energy from one circuit to another through inductively coupled electrical conductors. A changing current in the first circuit (the primary) creates a changing magnetic field; in turn, this magnetic field induces a changing voltage in the second circuit (the secondary). By adding a load to the secondary circuit, one can make current flow in the transformer, thus transferring energy from one circuit to the other. for details:

Q:Power transformer parameters: First, the transformer technical parameters The main technical parameters of the power transformer are: rated power, rated voltage and voltage ratio, rated frequency, operating temperature class, temperature rise, voltage adjustment Rate, insulation performance and moisture resistance, the main technical parameters for the general low-frequency transformer parameters are: transformer ratio, frequency characteristics, nonlinear distortion, magnetic shielding and electrostatic shielding, efficiency and so on. A. Voltage ratio: Transformer two sets of coil turns are N1 and N2, N1 for the primary, N2 for the secondary. In the primary coil plus an AC voltage, the secondary coil will produce both ends of the induced electromotive force. When N2> N1, its induction The electromotive force is higher than the primary voltage. This transformer is called a step-up transformer: when N2 <N1, its induced electromotive force is lower than the primary voltage, which is called a descending transformer. Primary secondary voltage and coil The number of the following relationship: where n is called the voltage ratio (turns ratio). When n <1, then N1> N2, V1> V2, the transformer is a step-down transformer.

Q:Hi, I'm trying to build a Jacob's ladder or maybe a Tesla coil. What should I use to get enough voltage? A lot of resistors or a transformer? (Are they also safe for humans?): No, you could die. Resistors do not increase voltage. Transformers do. However, you can also get high voltages via a Van de Graff generator, although a big one can still be dangerous.

Q:i want to know the actual lyrics for the Transformers theme that was re-covered by Mute Math. i heard that they changed some of the lyrics but i would like to know the exact changes, thanks.: i hope this helps - Something evil's watching over you Comin' from the sky above And there's nothing you can do Prepare to strike There'll be no place to run When your caught within the grip Of the evil Unicron Transformers More than meets the eye Transformers Robots in Disguise Strong enough to break the bravest heart So we have to pull together We can't stay worlds apart To stand divided we will surely fall Until our darkest hour When the light will save us all Transformers More than meets the eye Transformers Robots in Disguise Transformers Autobots wage their Battle To destroy the evil forces Of the Decepticons It's judgment day and now we've made our stand And now the powers of darkness Have been driven from our land The Battle's over but the war has just begun And this way it will remain til the day when all are one Transformers Transformers Transformers Transformers More than meets the eye

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