250MVA/220kV standby transformer for factory

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1 pc/month

Inquire Now

Chat Online

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Quick Details

Place of Origin:	HeBei	Brand Name:	CNBM	Model Number:
Usage:	Power	Phase:		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 , 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 250MVA/220kV 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 250MVA/220kV 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:1000KVA transformer no-load loss is how much?: Transformer no-load loss is not the same, not only the manufacturers are not the same, is a manufacturer at the same time manufacturing two transformers, may be no load loss will not be exactly the same; Different types of transformer no-load loss is not the same, the larger the model, the smaller the no-load loss, such as S9 than the S7 no-load loss is small.

Q:Are there any transformers action figures that arent for little kids like from the movie and are collectables? LINKS?: Personally I wouldn't go with the ones from the movie. They're more a kids toys and the quality isn't too good. I go with G1 reissues. The Binaltech and Alternators line. Fun to play with and has collectible value. And the Masterpiece Edition Transformers. Which i do recommend highly. Expensive but worth it. The details look very real. And are collectors items The classics line is good too. They look a lot more decent and a bit better in quality than the current toys.

Q:If defects of one phase transformers can be improved by 3 phase transformer,then why not a 4 phase transformer used: If you use more than three the phase angle between phases will be different. Between phase 1 and 3 the voltage will be double where as between phase 1 and 2 cosine 45 of the phase voltage. So it will be very confusing to correctly connect phases.

Q:If you have two 12 volt transformers and if we connect their hot wires together does the voltage become 24 or 12 volts?: There is actually a phasing to the transformer windings. If you connect them in series with the phases adding (both hit + 12 at the same instant) you get 24 volts out. If you connect with the phasing wrong (one hits +12 while the other hits -12) and put them in series the output will be zero volts (and they might overheat). If you connect them in parallel with the right phasing you will get 12 volts and the amperage will add to give you the sum of their amperage. If you connect in parallel with the phasing wrong you will get zero output voltage (and the danger of overheating). If the transformers do not make their phasing clear put a voltmeter on the output and briefly turn on the primary while seeing if you get zero or the voltage you want. If the phasing is wring swap the wires of one transformer around and check with the meter again.

Q:If load loss of a transformer at full load is 100kW, the load loss at 50% load will be a) 50kW b) 75kW c) 25kW d) 100kW. i think its 25kW because load loss is inversely proportional to the square of loading percent. kindly explain . is it right.: Yes this is right. There are two losses in a power transformer: iron losses and copper losses. Iron losses in the core depend on the flux (hence the voltage) and the frequency. The copper losses come from I^2*R losses in the windings, so they depend on the load current. The flux in the core doesnt change when we change the load, only the current through the windings, so your reasoning is correct.

Q:A 2200/220V, single phase transformer has the following resistance and leakage reactance referred to primary: R5.6 ohms, X22 ohms1. calculate V2, I2 and cos(2) when the primary is supplied with 2200V, 9A at a lagging power factor of 0.8. Neglect Io.: I2 I1[V1/V2] 9[2200/V2] I29[2200/20] 9[10] I2 90 amperes. V2 220 volts

Q:(1) A Step Up transformer steps up voltage.(2) Voltage is directly proportional to Power.Conclusion: A Step Up transformer has the capacity to increase Power.Contradiction: By First Law of Thermodynamics, Energy can neither be created nor be destroyed. Hence No one can create energy out of thin air like, that of by just using a Step Up transformer to increase voltage and hence power.Where is the whole theory wrong?: P I*V A step up transformer DOES increase output voltage BUT it also lowers output current. So it's incorrect to say that Voltage is directly proportional to Power. Voltage is Power divided by the Current. If the output voltage doubles, output current drops by a factor of 2. This way, total output power stays the same as input power, and all laws of Thermodynamics are satisfied. P_in I_in * V_in I_out * V_out P_out

Q:I would like to get my grandchild all the transformer movie dvds but don't know the names of all of them. please help and thanks: Wow that's the best gift you could give ! I would be thrilled to get that ( and I'm a teenager, LOL ). Someone already took my answer. :( But yeah I'll repeat it anyways: Transformers, Transformers: Revenge of the Fallen, and Transformers: Dark of the Moon ( BTW I heard it comes out November 15th, not September 30th, I'd get that checked out ). What a lucky grandchild, I'm buying them all on blue-ray when the third one comes out : If he has a game station (xbox 360 or ps3) why not get him the games? :p too much? okay nvm.hope I helped

Q:could i connect a flyback transformer directly to an ac power supply instead of a 555?: A flyback transformer is designed to work about 15 KHz with a lower primary voltage. If you connect it directly to the AC line, it will either burn up or pop a circuit breaker. Let us hope for the latter.

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.: The transformer uses KVA as a unit because it is not possible to obtain active power (symbol P, unit KW) and reactive power (symbol Q, unit KVAR) if the load is not determined, and only use KVA as a unit Apparent power, symbol S. S ^ 2 = P ^ 2 + Q ^ You can understand the active impedance of the transformer when the load is pure impedance. In addition, how to KVA as a unit of transformer production, calculate the number of transformers? The size of the load divided by the transformer capacity, leaving the margin, that is, the number of transformers, if the power factor is small, it is necessary to add a few too transformer, but this is not very economical, better way is to reactive compensation. You can refer to the load power size, and power factor, if the power factor is not, you can estimate to take 0.8, (Power transformers are generally 110KV, 220KV, 500KV) Question added: 110KV transformer, is not it that the maximum output voltage is 110KV? Not the highest output voltage, but the rated output voltage. That is, the primary input voltage, the secondary side of the output voltage, you can understand the normal operating voltage.

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range