|Place of Origin: ||HeBei||Brand Name: |
|Model Number: |
|Coil Structure: |
|Coil Number: |
|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 32MVA/220kV main transformer power plant can significantly improve the economy of the OLTC substation, and matches well with the transmission capacity of OLTC 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 32MVA/220kV main transformer power plant. In order to make the products applicable to any OLTC substation in our country, the state grid of corporation of China set the "A study of easy-transport large capacity OLTC 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 OLTC 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 OLTCtransformer 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 OLTC Transformer’s right at the first time once again filled the gap in the field of OLTC transformer research after Chinese transformer industry overcame the difficulty of integral transport of 32MVA/220kV main transformer power plant, 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.
- Q:Transformer tap adjustment there are several ways? What are the advantages and disadvantages?
- 1, no excitation adjustment or no taps.
2, with taps.
Their advantages and disadvantages are as follows:
1, no taps: taps when the transformer must be shut down after the power, the advantages of safe and reliable, but the disadvantage is to adjust inconvenient, and often because the tap position can not meet the needs of less.
2, with taps Advantages: easy to adjust, do not have to turn off the transformer power can be adjusted, and the general tap position more easily meet the requirements. Disadvantages: due to load adjustment prone to problems, high cost, compared with the same capacity transformer volume, taps device maintenance needs a long time to blackout.
- Q:Taiwan, Taiwan, the concept of transformer
- Transformer refers to equipment;
Taiwan change is installed in a place of the transformer, is specifically installed, running a transformer;
Taiwan area refers to the regional range of variable power supply.
Metering point is for the two sides to determine the installation of electric energy meter position, in general, the measurement point should be set at the demarcation point of property rights.
- Q:In the transformer load calculation to be calculated when the fire pump
- Calculated in two states, the normal state and fire status. Normal does not calculate the capacity of fire equipment, such as fire pumps, fire engines and so on.
- Q:On the transformer problem
- When the primary voltage of the transformer is rated voltage, the secondary voltage does not decrease with the load current, but this is only the case where its rated power is not exceeded, and the magnetization will increase when the secondary current increases Paul its current output, a power beyond its maximum, the secondary current increases the voltage will drop until the fever burned. Inrush Current 1 Overview
Transformer is based on the principle of electromagnetic induction made of a static electrical appliances, for the low voltage into a high voltage or high voltage into a low voltage, AC transmission and distribution system is an important electrical equipment. When the transformer is closed, it may produce a large current, this paper mainly discusses the current generation and influence.
- Q:Transformer and the middle of what is the difference
- In the week is the IF transformer or inductance coil, is a fixed resonant circuit with a transformer, the resonant circuit can be fine-tuning within a certain range, so that access to the circuit can achieve a stable resonant frequency.
- Q:How much capacity the transformer has
- According to GB / T6451- "three-phase oil-immersed power transformer technical parameters and requirements", the voltage level 10kV-220kV, the capacity is as follows (kVA):
30,50,300,123,80,100,125,160,200,250,315,400,500,630,800,1000,1250,1600,2000,2500,3150,4000,5000,6300,8000,10000, Lt; / RTI & gt;
- Q:Where is the transformer used?
- Transformers are suitable for applications where the voltage level is to be changed
Need to change the impedance to match the front and rear impedance of the occasion
It is necessary to increase the current supply as a booster
- Q:What is the transformer capacity ratio? Capacity than 100%.
- Have not heard, you say is not the main transformer parallel run between the main transformer and the capacity and capacity of the ratio, or the meaning of such
I made a change, you say is not: the transformer once measured capacity can be transferred to the secondary side or three times, such as three winding 50000KVA main transformer, 100/100/100, is the primary capacity can be all to the two Secondary use, you can also use all the three times, which is mainly and the main transformer winding, clip and so on factors
- Q:Why is the notebook computer transformer hot?
- Laptop Transformer Professional term is called power adapter.
Power adapter heat is normal. Power adapter power conversion efficiency can only reach 75-85 or so, in the voltage conversion, a part of the energy loss, which in addition to a small part of the loss in the form of waves, the majority of the way out of the heat The The greater the power of the power adapter, the more energy is lost, the greater the heat of the power supply.
The current power adapter on the market are using fire-resistant high-temperature plastic sealed package, the internal heat generated by the plastic shell mainly distributed out. Therefore, the power adapter surface temperature is still quite high, the maximum temperature and even up to about 70 degrees.
The following are the same as the "
Power adapter heat solution
The power adapter heat is unavoidable, but it can speed up its heat to prevent its temperature from rising continuously.
1, the choice of small pressure drop, low loss of switching components, cooling area to be as large as possible, more than 100W switching power supply should generally have a metal perforated shell, or with cooling fan.
2, as far as possible to put the power adapter in a better place to ventilated heat, do not put things like books on the power above.
3, in a higher temperature environment, the use of notebooks, notebook power adapter should be placed in a place not exposed to direct sunlight and ventilation; do not put the power adapter in the notebook near the cooling outlet, or not only the power adapter heat dissipation is not Go out, but also absorb part of the heat.
- Q:630kva dry-type transformer rated current is how much
- Hello there:
- ★ 1, the transformer current calculation formula is: transformer capacity ÷ (rated voltage × root number 3)
- ★ 2,630kva transformer primary current: 630kva ÷ (10kv × 1.732) = 36.37A;
- ★ 3,630kva transformer secondary current is: 630kva ÷ (0.4kv × 1.732) = 909A.
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