68MVA/500kV standby transformer power plant

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1 pc/month

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Quick Details

Place of Origin:	HeBei	Brand 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.

Q:10KV distribution transformer how to calculate the tap voltage: 10kV distribution transformer tap voltage can be Ue ± Ue X% (X is the percentage of each range of adjustment). General distribution transformer tap adjustment range of Ue ± 2 × 2.5%; tap for 1 - 5, the tap voltage is calculated as follows: 1 ----- 10+ (10 x (2 x 2.5%)) = 10.5 kV 2 ----- = 10 + (10 x 2.5%) = 10.25 kV 3 ----- 10kV rated voltage, 4 ----- = 10- (10 x 2.5%) = 9.75 kV 5 ------ 10- (10 x (2 x 2.5%)) = 9.5 kV Transformer tap on the high side, according to the needs of the low side to adjust the high pressure side of the tap position. If the low voltage side of the low pressure should be raised to 4 or 5, and vice versa to 2 or 1 up. Because the adjustment tap is used to change the transformer ratio. In the case of a transformer with a rated voltage of 10 / 0.4kV, its change ratio K = U1 / U2 = 10 / 0.4 = 25; when the secondary voltage is low, if the split is set to 4, the position K4 = U1 / U2 = 9.75 / 0.4 = 24.375, the primary voltage is still 10kV secondary voltage = 10 / 24.375 = 410V. Increased secondary voltage. In fact the adjustment of the split is adjusted by the number of turns of the coil, the change in the ratio and the number of turns of the secondary coil is constant. To reduce the secondary voltage, increase the number of turns of the coil.

Q:Hi - I have some questions for any electrically minded people out there!I have a low-voltage 12v transformer, as pictured here:: dont worry .you cannot get a shock from 12 volt dc low wayyage transformer.as long as you touch the output wires .DONT FOOL WITH THE IMPUT WIRES you cant do much damage whatever you do with the output

Q:I heard somewhere that Steve Jablonsky's orchestral score to the new Transformers movie (which is fabulous!) would eventually be released on CD. Does anyone know anything about this?: Transformers will hit theaters on July 4, 2007. A song soundtrack will be released by Warner Brothers Records on June 26, 2007, and a score album is in the works. soundtrack /features/artic Best Buy has the original soundtrack for sale, which is the songs by bands. The Original score album has not yet been released, which is the music by Steve Jablonsky.

Q:Transformer voltage range of 10.5 ± 2 * 2.5% kV and 10.5 ± 5% kV What is the difference: 1, the voltage range is the same, are 10kV ± 5%; 2, the difference is that the accuracy of different voltage regulator, 10.5 ± 2 * 2.5% kV transformer sub-switch has five stalls, respectively, 10.5 +5% kV, 10.5 + 2.5% kV, 10.5kV, 10.5-2.5% , 10.5-5% kV; and 10.5 ± 5% kV transformer section switch has three stalls, respectively .5 +5% kV, 10.5kV, 10.5-5% kV; 3,10kV transformer sub-switch three more for the power failure regulator transformer, and sub-section switch five for overload regulator of the transformer, relatively speaking, the fifth gear than the third gear section switch Much more complex, so the price should be slightly higher for the load change is relatively large, the voltage quality requirements of the relatively high important occasions.

Q:assuming a delta connected single phase transformers , why is the neutral side is connected to ground, my question is will the current be shunted to ground since it has a low resistance??? please explain: In electric distribution structures transformers are available countless sizes. Heavy ones are generally located on the floor with a concrete pad located under it to furnish help. those pad fastened transformers are risk-free against touch with the regularly occurring public generally with a fence. Pole fastened transformers are lighter and can be accurately located immediately on the skill pole. i don't comprehend of any floor fastened transformers different than for transformers located in vaults while the distribution strains are underground. yet those additionally desire some form of pad under them.

Q:1. 6volts going in a 12:220v transformeris the output 220v or less, formulas, computations 2. 12v going in 12:220v transformer (1 amp 220VA)core loss, copper loss, eddy current loss etc etc3. 24v going in a 12:220v transformer. is the 220v, lost of power in the input,: #1 - 107.8, assuming 6.0V into a 12.0V:220V transformer, with 98% efficiency. You can find the efficiency of the transformer, by looking at it's specifications. Most range from 98 to 99%. All this depends on the load as well, as a lightly loaded transformer has less loss that a fully loaded one. #2 - 215.6V. In order to get 1A@220V, you will need to supply #3 - 431.2V. 100% over spec, and bound to fail. I do not understand what you mean by is the 220V, lost of power in the inupt,

Q:I read something somewhere once about using small mains transformers as substitute speaker transformers in valve circuits.Suppose I have a 6-0-6V transformer with a 240V primary. That gives a 20:1 turns ratio. So if the secondary is putting out Vs volts at Is amps into 8 ohms, then (neglecting losses) the primary will have 20*Vs volts across it and Is/20 amps through it. But we know that Is Vs / 8; so the primary will appear to have an impedance of (20 * Vs) / (Vs / 160) 3200 3.2k ohms.Am I thinking right? Or will the presence of DC in the primary ruin everything?I'm thinking of using an ECL82 (aka 6BM8) for my first project, as that has both a triode and a pentode with separate cathodes and seems to be available still. Is this a good choice?: The primary is the one that needs the split winding, not the secondary. So you would need a 240-0-240 transformer. Possibly a transformer designed for 120 or 240 volt operation, so you can connect it as a 120-0-120 volt primary. The secondary, where the speaker is connected, would be the 6v or 12v winding. I lost my tube manual (tossed it) long ago. But from memory, I'd use 6L6s for the drivers, they should still be available, and have a lot of power. How well will this work? Don't know. give it a try. .

Q:New on the transformer reported to stop, how to do,: Second, if it is a large industrial electricity price, in order to save the basic electricity costs, is the power supply enterprises can apply for disabling procedures, but the new transformer need to comply with the "power supply business rules" provisions, reported there are two procedures, Capacity, the second is suspended: Article 23 of the Power Supply Business Rules The user will be required to apply to the power supply company five days ago. The power supply enterprise shall handle the following provisions: 1. The reduction must be the whole or the whole group of the transformer to stop or replace the small capacity transformer power. The power supply company shall, upon the date of acceptance, seal the equipment according to the date on which the user applies for the reduction. From the date of the seal, according to the original billing method to reduce the corresponding capacity of the basic electricity. But the user stated that the permanent reduction or from the date of the expiry of the expiry of two years without the resumption of electricity procedures, and its capacity after the reduction has been less than the implementation of the two-tier price of capacity standards should be changed to Single system billing;

Q:how the electronic transformer work?: An okorder

Q:How long does it take to restart the transformer?: (4) power failure operation, the first load side of the switch, after the power side of the switch (multi-side power from low to high stop); first pull the transformer side of the knife, after pulling the bus side of the switch. Power supply operation is reversed. (5) into the backup transformer, the device should be based on the actual location and instructions to determine the load has been taken in order to make the operation of the transformer power failure. Diagonal and 3/2 wires on the transformer, although the transformer has been out of power, but the transformer's heavy gas and differential protection action can still cause its ring side of the switch trip. Should be based on the actual situation and the site of the gas protection to change the signal location or retreat gas out. (6) station transformer does not allow long-term side by side. Can be used to cut low-pressure low-pressure side of the cutting machine, with high-pressure knife cut off the station with a transformer.

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