250MVA/220kV standby transformer power station

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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:	250MVA/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 250MVA/220kV standby transformer power station, 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 250MVA/220kV standby transformer power station. 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 250MVA/220kV standby transformer power station, 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 te

Core: The three-phase three-pillar structure inside and outside the box rolling. Center column for the multi-step cross section. After rolling core using vacuum annealing to remove stress, bending clamping groove. Pull screw to tension the body. Core surface brush special angle glue, to ensure core is not deformed and not rust.

Coil and the body: low-voltage coil made up of 1 to 6 wires together to four layers or double-cylinder type (500KVA and below), or spiral-type. High voltage coil axial direction Oil conduit and high-low voltage main oil gap are Stays curtain structure. Iron yoke insulation and trapezoid pads as one, so that the body uniform compression, body structure using the new safety board positioning, vertical and horizontal orientation, ensuring that is no displacement.

Tank: The ripple tank, sealed structure, no leakage, maintenance-free.

Our service

1. Before the order, you will be provided with our general product descriptions, a series of detailed account for commodity, instructions, quotation sheet and related qualification certificate to have a knowledge of our company and products.

2. After signing the technical agreement, the general assembly drawing, base drawing, drawing information and technical requirements will be offered. The technical requirements of agreement will be implemented strictly to provide new, advanced, mature and reliable products.

3. Guarantee all the process, components, accessories and test for products comply with the national standard or client-specified standard.

4. After products arriving, technicians will be sent to investigate on the site installation supervision, insure the perfect installation in the shortest possible time. During the debugging period, we also assist in the field test and debugging to make sure it running smoothly.

5. The technicians are responsible for the explaining of technical documents and drawing and answering and solving all problems about our products.

Q: 50 What is the actual power of the transformer? Is 3 phase 50 or 3 together 50: Three-phase transformer marked the basic capacity of three-phase capacity, that is, the sum of three-phase winding capacity is 50KVA. The actual output capacity of the transformer, not only with the rated capacity of the transformer has a relationship with the nature of the load, and the power factor of the load, and the efficiency of the transformer has a relationship with the level of loss of the transformer. When the load balance, stability, pressure efficiency of 100%, the actual power can be achieved: P = Se × COSφ, visible higher power factor, the closer to 1, the transformer the actual power is higher, closer to the apparent power. In general, the 50KVA transformer, when the power factor of 0.85, the actual output power of about 42.5KW.

Q: I was planing on buying transformers but my friend told me about skyrim and it looks pretty good, which one is better and funner?: SKYRRRRRIMMMMMMMMMM!!!!!!!!!!!!!!!!!!!!! ZOMG

Q: What is the normal color of the transformer oil?: transformer oil are produced using the appropriate refining process, the color is shallow, generally light yellow, according to GB / T 6540 method to measure the color are below 1, and some oil color close to the water white. Oil in the use of the process, due to oxidation will produce acidic substances or sludge (sediment),

Q: How to test the transformer capacity: Generally, the same method as the short-circuit impedance test is used to test the temperature rise. The secondary side of the transformer is short-circuited and the voltage is applied once, and the secondary current reaches the rated value. Wait until the transformer temperature changes less than 1 degree / hour later, and then maintain 3 hours, this time the transformer temperature rise is the final test value. ?

Q: How to make a current transformer more linear? Except change the core.Thank you!: Ideal linearity is reached when B and H are linear. Use air as medium. It may give less output but linearity will be perfect!

Q: Will the installation of transformers, power supply bureau is how the charges? What basic price, and then what is the plane fee? And then the transformer capacity is not the same as the unit price is how much? How much is agriculture and business? Chengdu area: Electricity Bureau to receive construction, survey, design, equipment, measurement fees. The plane fee for the capacity of the general 250KVA above the transformer to charge capacity fee 1KVA a month generally 25 yuan. Industrial electricity is divided into peak and valley electricity price difference, agricultural electricity regardless. Details can call me

Q: Can the transformer be replaced with a component?: Transformers are not only able to buck and boost, but also from the role of isolation. In fact, the circuit with the inductance of the circuit can also buck and boost, but there is no isolation of the role, there will be dangerous to use. Resistance can also buck, but the efficiency is low, the current is small, there is no isolation effect.

Q: Hi:I found a 10,000 WATTS STEP UP TRANSFORMER.Following are its characteristics: 1- 10,000 Watt Maximum Capacity Heavy-Duty Continuous Use Transformer. 2- Converts 110/120V upto 220/240 VoltsWhat will be its input?I means which battery or Generator i have to use for its input?Is it good idea to use that transformer to supply electricity to 1 house?: input is 110~120 v i dunno about the power rating cuz its supposed to be rated in KVA which is the total active and reactive power, u r saying watts which is only the active power!!! a transformer cannot be loaded above 85% of its rating, it wont be safe! u cant transform battery electricity, cuz its DC, u need AC, my advice to you forget about the transformer and the generator and forget about electricity its fatal, knowledge is not enough, precautions and practice is wt this field is all about. consult any electrical engineer u know.

Q: I know that someone made a transformer movie. But wouldn't DBZ the movie be a lot better!?!?!?: There are 14 official DBZ movies out to date (not counting special releases). They have been converted to English, but they are not Hollywood made. They were made by the guys who made the episodes, so they look just like the episodes. They are pretty cool. The prob is that as soon as you take Japanese animation and convert it to real lifefans tend to be disappointed in the final product. Transformers are easier to create in the visual effects department because they are machinesnot characters. However, if Hollywood does create a DBZ movie, I am sure that Goku will be able to kick the *** out of any Transformers that come at him. Btw, there are a few made that were not created by the original artiststhey suck, don't even bother watching them, you will be disappointed.

Q: How do I select a transformer connection group?: Both transformers are center-point direct-to-ground transformers. Dyn11 wiring group of the transformer because of its high-voltage winding is triangular wiring, so when the user produces three and three times the harmonic, can be formed in the triangular winding circulation, resulting in magnetic flux to eliminate this harmonic pollution for the grid. The Yyn0 transformer because there is no triangular winding, without this function. If only an independent power supply of small capacity transformer, you can use Yyn0 transformer, such a transformer everywhere, good production. If there is a transformer that may be supplied in parallel with other transformers, or as a backup power source for other power supplies, the same wiring group as other transformers should be selected. If it is recommended for large-capacity industrial transformers Dyn11 transformers are recommended to reduce the contamination of the grid by three or three times the number of harmonics.

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