50MVA/220KV SF6 Bushing startup/standby 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:		Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:		Rated Voltage:	50MVA/220KV
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 50MVA/220KV SF6 Bushing startup/standby transformer, 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 200-490 tons, and due to the restricted transport conditions, the transportation becomes the critical issue for application of the 50MVA/220KV SF6 Bushing startup/standby 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 50MVA/220KV SF6 Bushing startup/standby 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:Step-up transformer, low-voltage winding put the middle, that is, low-high; Step-down transformer, medium voltage winding in the middle, that is, low high. For the step-up transformer, the input is low and the output is high or medium; the low-lying intermediate makes it possible to minimize the distance in the low-high, low-, thereby reducing the distance traveled by the magnetic energy, Loss, reduced low - high, low - in the leakage resistance, thereby reducing the low - high, low - between the short - circuit voltage percentage, thereby reducing the reactance, thereby improving the energy conversion efficiency of the transformer. For buck transformer, the input is high, the output is low or medium, similar to the step-up transformer, the optimal arrangement should be low, high, medium. However, due to insulation safety problems, the high voltage side must be placed at the outermost end. So the arrangement of sub-optimal way to low, medium and high.: But from the operating and manufacturing costs, low - medium - high arrangement, more reasonable. 1, from the operation to consider: step-down transformer, low pressure side is often for the distance of the load. And the voltage level is low, the protection level is lower. So we hope that the low-high impedance is bigger as well. While the pressure is often for the far load, we hope that the impedance between them is smaller as well. This arrangement, just to meet this requirement.

Q:Hi there, I live in the Dallas, Texas area and we recently had a lot of storms come through. During one of the storms I was looking out a window to my backyard when I heard some thunder and saw some lightning hit the transformer right outside my backyard, which sent sparks everywhere. The power went out, but came on about a minute later.Ever since then (it's been about 24 hours) all the lights in the house have been dimmering every few minutes, some lights dimmer when you turn on appliances and one outlet went out randomly.: When lightening strikes power lines or transformers it causes a power surge, without the proper precautions (surge arrestor) this can cause damage to electronics and other misc. electrical items including the transformer, the service, the meter, and the panel which cant be protected by a surge arrestor, First things first, you need to contact the power company and let them know that one of there transformers was hit by lightening, next you will need to know who else is powered by that transformer if any body else is. some places have a transformer on each home, depending on where you liveif somebody else shares the transformer follow the lines to there house and ask them if they have the same probIf so its the power company's problem and they will likely replace it. If its shared and the other person does not have the same problem or If you are on the only one on the transformer then you will need to hire an electrician to inspect for damage and repairs.

Q:A CD player uses two 1.5 v batteries. If you want to plug it into a 120 v outlet, what kind of transformer will you need (Step up or Step down)? What must be the ratio of the number of turns in the primary to the number of turns in the secondary?: there is not any longer something incorrect with the turns ratio; the topic is that the sq. wave has severe frequency harmonics that are no longer nicely taken care of by technique of the ferrite. extra importantly, you're turning out to be to be magnetic saturation of the ferrite. you should do a calculation, based on the meant familiar contemporary, of the magnetization of the ferrite (a wisdom sheet on the middle will help), and from which you will calculate a suitable style of familiar turns.

Q:Transformer oil filter method: So only on-line oil treatment. Oil filters require an external oil filter and oil tank. The new oil (has been qualified, insulation pressure are qualified oil into a clean oil tank inside, the external oil filter and oil drums and transformer tubing as a whole, the external circulation of online filter oil). Mainly: 1, online filter to continuous operation, to ensure that the weather is fine air humidity less case, under the conditions of the best conditions for 214 hours of continuous operation.

Q:I have a power transformer and i forget where it came from. It has two leads from a wall outlet plug and then goes to the main (square) casing. there are three wires that come out the other side. They are from left to right, red,white and red. I assume its a 9v ac to dc transformer but am not positive. Can someone help me? I suspect that the white wire is ground. Any help would be great.: There's no reason to assume anything, except that the primary side (with the line cord and plug) is probably intended for 115 Volts, AC. If it's a transformer (rather than a power supply) it's not AC to DC at any voltage. Transformers convert AC to AC. With those colors on the secondary, there's a pretty good chance it's center-tapped. Red-to-red will be twice the voltage of either red-to-white. Nothing should be grounded to the transformer case.

Q:Hi, I need a High Frequency( example~200khz) High voltage(200 000v) power supply at low microcurrent, I know that a Tesla coil fits the bill very easily . But I need to manually VARY the frequency(say from 100khz to 200khz ) while keeping the High voltage the same? Is this possible, Can some one guide me where I can buy or build this? Can I just for instance connect just a van de graaf or a rectified Tesla Coil to a function generator? If not what do I need to do to achieve what I want? I have been searching without help so your support is much appreciatedThanks: The Tesla coil needs to operate at the same resonant frequency on both the primary and secondary sides of the loosely coupled transformer. The resonant frequency is set by the inductance and capacitance of each side. The problem is there are no high voltage solid state capacitors (varactor diodes like you see in r.f. receivers that adjust the tank circuit frequency) on the primary side, and no way to adjust the top hat toroid capacitor on the secondary side (unless maybe it was a mylar covered balloon with vacuum deposited aluminum that could be remotely inflated or deflated). So you are stuck with whatever high voltage capacitor and toroid top hat you have on hand, and the inductance of the coils you wind that ends up being the resonant frequency. Even then it takes a lot of fiddling to get both in tune to give the maximum voltage output. The input frequency to the primary coil (the 555 circuit used in the step up with the flyback transformer- its frequency was chosen solely due to the flyback's frequency design) has little to do with the primary's resonant frequency; again that is set by the capacitor used and the size and number of turns of the primary coil.

Q:I am looking into purchasing a counter top coffee roaster that requires a 30 Amp 120 outlet; manufacturer says it uses about 21A.The only plug/circuit that can handle this load at this time is a 240 V outlet. We have a gas stove and we are not currently using the circuit.Does anyone know of a manufacturer that makes a external/freestanding step down (240 to 120) voltage transformer / regulator that I can plug into a grounded (North American) 220V outlet ? Note: a) I don't need it to be variable, just a fixed 240V to 120V is perfect. b)It would also need some sort of internal voltage regulation/ stabilization as erratic voltages would affect the (coffee) roast.: If each leg of the 240v circuit is 30 amps, you won't need a transformer at all. There are travel kits for going to foreign countries that have a variety of adapters for plugging into 240V outlets that only use one leg of the circuit, which is 120v. Find the adapter that fits your outlet, and you will be up and running! DO NOT TRY TO MAKE SUCH AN ADAPTER YOURSELF UNLESS YOU HAVE A DEGREE IN ELECTRICTY/ELECTRONICS! Using a transformer involves balancing the load, getting a transformer that is rated for the current, a lot of worms in that can. There are also adapters available to stabilize the current, they are available wherever compurers are sold.

Q:Transformer capacity unit KVA? Transformer capacity unit KVA is how is it? 10KVA transformer, the maximum number of KW can be connected to electrical appliances? Supplementary - 2006-07-27 10:00:32 30KVA transformer, the maximum number of KW can be connected to electrical appliances? We plan to rent a workshop, there are power 380V, transformer capacity 30KVA. I want to install an electric furnace 75KW, welding machine 53KW, there are other small power appliances. Transformer capacity enough? I am full of transformer on the layman, please explain in detail, do not rhetoric.: What is the difference between kv, kva and mva? The kilovolt ampere (kVA) is the power measurement standard that is 1 kilovolt ampere. KVA is equivalent to the current in a circuit generated by the voltage of that line, usually measured in the transformer, that is he is a current unit. And kilowatts refers to the power of an electrical, that is, the power of the unit. The rated capacity represents the guaranteed value of the transformer output power under rated operating conditions and is the apparent power of the transformer. That is, the maximum output power of the transformer capacity, the transformer can not be the actual output power and capacity to be confused. The units are voltammetry (VA), kVA, and MVA.

Q:best movie i everr seen, bein a transformers fan as a kid, this a whole nother level god damnn: I was pissed It ended way to soon!?!?!? I realize it was a rather long movie but after 20 years I needed another few hours. I desperatly await a number two, And they better make it.

Q:What is a transformer?: Transformer role is generally there are two, one is the role of step-down, the other is the impedance matching effect.

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