380MVA/525kV single-phase double winding generator transformer Power Plant

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Quick Details

Place of Origin: HeBeiBrand Name:

CNBM

Model Number:

 

Usage:

Power

Phase:

one

Coil Structure:

Toroidal

Coil Number:

2 Winding

Capacity: Rated Voltage:

380MVA/525kV

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 380MVA/525kV single-phase double winding generator 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 the 380MVA/525kV single-phase double winding generator 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 the 380MVA/525kV single-phase double winding generator 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.

 

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Q:800KVA transformer itself is the loss of how much?
Are 800kVA transformer, the model is different, loss of access great. You find out the model to say, there are standards can be found.
Q:What is the difference between the main transformer and the transformer used?
1, the so-called main transformer or (plant) with transformers are transformers, but according to their use of different names. The so-called main transformer: generally in the power plant or substation are so called, its function is for the system through the required level of power transformer; the so-called (factory) with the transformer is inside (power plant interior) Electrical equipment to provide power transformer. 2, the (plant) with the transformer power supply connected to the main transformer on the same bus, and some received another external power supply, so that when the main transformer can be maintained when the maintenance (plant) to continue to have power!
Q:What is the unit of the transformer?
Power transformer capacity unit with KVA, that is, as the power. Most of the power load is inductive load, its apparent power is equal to the sum of active power and reactive power vector. Therefore, the apparent power of the inductive load is greater than the active power. If the active power transformer, the apparent power of the inductive load is greater than the power transformer capacity, the load current to exceed the allowable value of the transformer, so the inductive load must use the apparent power transformer. If the transformer load is all the resistance load, the total power can be equal to the transformer KVA value.
Q:What is a transformer paused?
5. Users who charge the basic electricity charges according to the maximum demand shall apply for the suspension of all the capacity (including high-voltage motors that do not pass the receiving transformers) and comply with the relevant provisions of Clauses 1 to 4 of this Regulation.
Q:Transformers are divided into several. What is the role of each? To be specific!
(Ii) Classification by purpose Transformers according to their use can be divided into power transformers, audio transformers, pulse transformers, constant voltage transformers, coupling transformers, autotransformers, isolation transformers and other. (C) according to the core (or core) shape classification Transformers according to the core (core) shape can be divided into "E" type transformers, "C" type transformers and ring transformers.
Q:Transformer parameter interpretation
Transformers in the provisions of the use of the environment and operating conditions, the main technical data are generally marked on the transformer nameplate. Mainly include: rated capacity, rated voltage and its tap, rated frequency, winding connection group and rated performance data (impedance voltage, no load current, no load loss and load loss) and total weight. A, rated capacity (kVA): rated voltage. Rated current under continuous operation, can deliver capacity. B, rated voltage (kV): the transformer can withstand long hours of operation can withstand the voltage to meet the needs of the grid voltage changes, the transformer has a high voltage side tap, by adjusting the number of high voltage winding to adjust the low voltage side of the output voltage.
Q:Production of high and low voltage switchgear transformer industry belongs to what industry category
Electrical, power distribution equipment? On the "switch talent network" or "electrical excellence network" to check it.
Q:Transformer depreciation period is not specified?
Transformer is the exchange of AC voltage, alternating current and impedance of the device, the core of the transformer - when the primary coil with AC current, the core (or core) will produce AC flux, the secondary coil induction Out of voltage (or current). 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. Different types of transformers have the corresponding technical requirements, the corresponding technical parameters can be used. Such as power transformer main technical parameters are: rated power, rated voltage and voltage ratio, rated frequency, operating temperature level, temperature rise, voltage regulation, insulation performance and moisture resistance, for the general low frequency transformer main technical parameters are: change Pressure ratio, frequency characteristics, nonlinear distortion, magnetic shielding, electrostatic shielding, efficiency and so on. Regulations of the People's Republic of China on the Implementation of Enterprise Income Tax Law
Q:Transformer three-phase imbalance which harm
There is no obvious harm to the transformer, but will limit the capacity of the transformer can not get 100% play. For example, A-phase current close to the transformer rated current, B, C-phase current only 10% of the rated current, but then the transformer can no longer take any three-phase power equipment, limiting the capacity of the transformer.
Q:1000KVA transformer no-load loss is how much?
I am in the "China Electromechanical Product Catalog" found a data, 10KV, S9-1000KVA no-load loss is 1.7KW, so the annual loss of power: 1.7 * 8760 = 14892KWH (degrees).

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