68MVA/500kV standby transformer power plant

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Quick Details

Place of Origin: HeBeiBrand Name:

CNBM

Model Number:

 

Usage:

Power

Phase: Coil Structure:

Toroidal

Coil Number:

3 Winding

Capacity: Rated Voltage:

68MVA/500kV

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 68MVA/500kV standby transformer power plant, 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 68MVA/500kV standby transformer power plant. 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 68MVA/500kV standby 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 UHV construction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of UHV Transformer products.

 

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Q:What is the difference between transformer MVA and KVA?
They are megawatts and kVA Unit (power in the power of S units) Megawatts 1 MVA = 1 thousand KVA Megawatt and kVA KVA = 1000W, trillion volts = 10 of the 6th power W
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:What is the primary side of the transformer
Explanation: The primary side refers to the input side of the voltage, and the secondary side refers to the output side of the voltage after the voltage is converted by the transformer. For the step-up transformer, the primary side is the low side, the secondary side is the high side; For the buck transformer, the primary side is the high side, the secondary side is the low side.
Q:Sichuan transformer manufacturer that a best?
Sichuan Meishan New Transformer Co., Ltd.'s products have the strongest load capacity, up to 200%
Q:Transformer winding maximum temperature at?
From the heat point of view, each part of the winding are the same, the maximum temperature of the transformer winding in the worst part of the heat dissipation, generally in the middle of the inner winding.
Q:Transformer fever how to do?
   National standard (oil-immersed transformer) the top of the oil temperature is generally adjusted at 85 ℃, if more than 85 ℃, to analyze the reasons: 1, if it is because the room temperature is too high, heavy load and other slowly rising, you can continue to run more than 85 ℃, but The maximum temperature can not exceed 95 ℃ (when the transformer core core or winding is 105 ℃, will seriously damage the insulation, shorten the life or burn the transformer); 2, the transformer running at 85 ℃, the transformer oil temperature and room temperature difference can not exceed 55 ℃, if it is over, may be a serious overload, the voltage is too low, the current is too large, internal failure, etc., continue to run will seriously damage the insulation, shorten the life or burn the transformer.
Q:What is the vacuum impregnation of the transformer?
so that the transformer immersed in vacuum under the conditions of the paint, so you can rule out the bubble inside the winding, increase Insulation performance. Dip out after drying.
Q:Why the computer water does not use transformer oil
In the weak, strong electricity, the cooling medium must be run in the insulating environment, weak environment for the insulation material is not high, even if the insulation damage suffered
Q:Single bus sub-section for power distribution, transformer with a prepared and dual-use how to understand
One with a prepared, you can only put one of the transformer, any of its transformers can all the load to bring all the general into the line breaker and bus in the breakdown of the circuit breaker, interlock between the three, A change vote, B variable can not vote, or vice versa, B cast A can not vote. This is the nature of the load mostly for a load, power supply is necessary for high reliability, but also the largest investment. Dual use can be divided into several, mainly refers to the change can be put into use, and some can be put into the parallel use, in some cases is not allowed to use in parallel, is the three circuit breakers with interlocking Three locks two spoons, three circuit breakers can only vote two. At the same time the capacity of the transformer is also different, some are prepared, some are dark spare, the specific use depends on how the original system design. hope this helps.
Q:220 volts to 24 volts transformer 20a is how many watts
Transformer consists of iron core (or core) and coil, the coil has two or more than the winding, which connected to the power supply winding called the primary coil, the rest of the winding called secondary coil. It can transform AC voltage, current and impedance. The simplest core transformer consists of a core made of soft magnetic material and a coil of two turns on the core, as shown in the figure. Turn left to turn right The role of the core is to strengthen the magnetic coupling between the two coils. In order to reduce the iron in the eddy current and hysteresis loss, the core from the painted silicon steel sheet laminated; between the two coils there is no electrical connection, the coil by the insulated copper wire (or aluminum) A coil connected to the AC power supply is called the primary coil (or the original coil), and the other coil is called the secondary coil (or secondary coil). The actual transformer is very complicated, inevitably there is copper loss (coil resistance heating), iron loss (core fever) and magnetic flux leakage (by air closed magnetic induction line), etc., in order to simplify the discussion here only describes the ideal transformer. The ideal transformer is set up under the condition that the leakage flux is ignored and the resistance of the original and secondary coils is ignored. The loss of the core is ignored and the no-load current is ignored (the current in the secondary coil turns the original coil). For example, when the power transformer is running at full load (the secondary coil output rated power) is close to the ideal transformer situation.

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