50MVA/220KV SF6 Bushing startup/standby transformer

Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
1 pc
Supply Capability:
1 pc/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:


Quick Details

Place of Origin: HeBeiBrand Name:


Model Number:




Phase: Coil Structure:


Coil Number:

3 Winding

Capacity: Rated Voltage:


Connection Symbol:

YNd11 Dyn11 YNyn0d11


Cover type or Bell type


MR or ABB or SMS

Packaging & Delivery

Packaging Detail:Mainbody --naked Disassembled parts -- crate
Delivery Detail:3 months



1. CESI certificate
2. High short-circuit withstand
3. Low loss, PD and noise
4. CTQC certificate
5. No leakage




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.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:whats transformer kva rating I need?
The total load is around 750kW but allowing for low power factor on the motors I would suggest you make it 1000kVA' get that or the next size up transformer off the shelf. Fit automatic power factor correction to reduce the load and save money.
Q:is a dc transformer practically possible?
In principal the AC (varying) part of a varying DC signal will be transmitted through a transformer, but in practice this is not much use unless the transformer is appropriate. Sometimes transformers are used with a DC bias (so varying AC signal superimposed on a DC signal), but it is avoided where possible. Example? SIngle ended transformer coupled amplifiers, commonly used in early transistor amplifiers and valve amplifiers. Varying a rheostat like that would result in very low frequency variations, and the lower the frequency the more unlikely it is to pass through a typical off the shelf transformer. Remember, only the variations can pass through. The overall current has to be low enough that the transformer's core (the iron part) does not become saturated. The DC part is blocked by the transformer. Normally a DC signal like this can be transmitted through a transformer by chopping it up into small parts, so it becomes more like an AC signal, then is passed through the transformer, and then can be converted back to an equivalent of transformed DC using a rectifier and filters. This idea is used in isolation amplifiers, DC - DC converters, chopper amplifiers, which you can look up for more detail. Transformers must have a varying magnetic field to work. DC fields only bias the core, so are usually considered a problem because the core must be designed (larger) for this condition. So depending on your goal, this is not a very valid thing to be doing, despite the examples above. I have to mention there are also magnetic amplifiers, where the transformer is powered by AC, and a DC bias (usually separate DC bias and varying signal windings) varies the saturation of the core. Thus the varying DC signal controls the amount of AC allowed to pass, and the AC output can be rectified and filtered to get a replica of the varying control signal with greater power.
Q:iz there a new transformers coming out?
Transformers 3 is estimated for a July 1, 2011 release.
Q:Transformer alone as an audio amplifier ?
Transformers are AC (alternate current) devices and if 60 Hz is supplied to the primary windings 60 Hz will be produced at the secondary terminal. The transformers transform voltage and current at the primary to voltage and current at the secondary by magnetizing a mass of iron in their cores. The magnetic cores may not respond efficiently to very high frequencies (transmission frequencies) but might respond to audio frequencies (loud speakers employ magnets and coils of wire). If a suitable audio signal was applied to the primary coil a transformer might be used to step up or step down the voltage of the supplied signal while reversing its phase, however power (P EI) would remain nearly constant.
Q:Transformer efficiency experiment?
properly no rely what engineering considerable you elect, you may desire to take Calculus a million 2, Matrices, Differential Equations, Chemistry a million 2 with labs, Physics a million 2 (Electromagnetism). you do not easily declare your engineeing considerable till the top of Sophmore 300 and sixty 5 days in college. Junior 300 and sixty 5 days is once you would be formally enrolled in a considerable. once you word for college and choose a considerable, you at the instant are not easily enrolled in that considerable and you will nevertheless choose any considerable you prefer. they merely ask what considerable you have an interest in to verify you're taking the mandatory situations on your first 2 years earlier stepping into your considerable in Junior 300 and sixty 5 days. interior the 1st 2 years of taking chemistry, math, and physics, you may additionally take Intro to engineering(CAD), and a brilliant form of engineering classes and electives like Statics, Dynamics, power of fabric, Thermodynamics, Into to electric powered Engineering(Circuits), C++, or Fluids. those classes will help you make certain what direction to circulate in direction of. based on your description, you desire Mechanical or business Engineering. the two deal in convalescing performance of goods, machines, and approaches. the two have numerous math. the two prefer expertise of Physics and the two require you to be good in difficulty fixing.
Q:What are the transformer capacity?
Transformer capacity: 15,30 50 63 80 100 125 160 200 250 315 500 630 A high - speed range of 12500 .. The The The The (Unit: KVA) Small is less than 1600KVA Medium 1600--6300KVA Large 8000 - 63000KVA Extra large is greater than 63000KVA
Q:Which transformers belong to special transformers
These special-purpose transformers are known as special transformers. Because of the working conditions and load conditions of these transformers, they can not be calculated by the general transformer calculation method.
Q:Physics: What is the function of a transformer?
For the best answers, search on this site
Q:What is transformer reverse charging?
Here to step-down transformer as an example: The forward power supply is powered by the high side of the transformer to the low side of the transformer, and the "reverse charge" is powered by the low voltage side of the transformer to the high side. When the main transformer power failure operation, we must first load side, that is, first stop low side, after the power side, that is, after the high pressure side; If there are two main transformer running side by side (or other means of multiple power), when one of the main transformer power failure, if the first stop high-voltage switch, then low-voltage switch has not been disconnected, will make another master Variable power through the low-voltage switch back to the transformer power supply, resulting in transformer back-off situation; this situation not only failed to power transformer, but also increased the impact of a transformer, when there is over-voltage, etc., may cause resonance hazards Equipment safety.
Q:about the Transformers Movie?
Im not sure but he is all silver so I think its Megatron.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
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