334MVA/500kV single-phase OLTC auto-transformer

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 pc

Supply Capability:: 1 pc/month

Inquire Now

Chat Online

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Quick Details

Place of Origin:	HeBei	Brand Name:	CNBM	Model Number:
Usage:	Power	Phase:	Three	Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:		Rated Voltage:	334MVA/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 334MVA/500kV single-phase OLTC auto-transformercan 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 application of the334MVA/500kV single-phase OLTC auto-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 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 334MVA/500kV single-phase OLTC auto-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 OLTC Transformer products.

Q:can any one give me a fast time line of transformers history: The gods Primus and Unicron nearly destroy the universe fighting until Primus tricks Unicron by imprisoning them both in metal planetoids. Unicron becomes giant transforming world devourer and Primus becomes Cybertron, bringing to life the transformer race that will fight Unicron in his stead. The robots of Cybertron eventually begin civil war which go on for millions of years, the evil Decepticons vs the heroic Autobots. Unicron finds Cybertron, the Autobot leader destroys him with the Matrix, the transformers fulfill their destiny. Their war continues until Cybertron is nearly depleted so the planet is reformatted and the race adopt Maximal and Predacon castes. New wars begin until balance is struck and Cybertron becomes technorganic paradise

Q:There are lighting transformers, tires and disassembling machine transformers, there is an electromagnetic starter, the tire changer transformer will always burn ah, are used 380V transformer, I have measured the next, when the transformer transformer measurement 391V, electromagnetic Starter average is 396V, nothing to have, has been used very well. But the tire disassembly machine transformer to die, the average voltage of 396V, installed up a few seconds to very hot, but why the other two no matter? Put away Tire disassembling machine Transformer I alone load the air switch voltage ah, 396V, only more than 10 V, the other transformers are not any problems If there is no problem with the secondary side, the voltage reaches the number of volts, the transformer will quickly become hot PS: 396V I was in the 380V where no-load test ah, more than 10 volts are not ah: Mainly to see whether the capacity of the transformer to meet the requirements, and then see whether the load side of the short circuit. Our transformer here in order to prevent the occurrence of such a situation in the high side of the installation of over-current protection, can effectively protect the transformer. Please adopt Burning transformer is not because of voltage, but because of current. Excessive current causes the coil to heat up to burn the transformer

Q:I was planing on buying transformers but my friend told me about skyrim and it looks pretty good, which one is better and funner?: Transformers: okorder

Q:I got this Toroidal Transformer out of a z-5500 speaker system. the amp fryed in the system.whell i got this Toroidal Transformer and i want to know if i put DC power on it will it put out DC Power??It says input 120VAC output 26.2VAC ORG. Wire 0V BLK Wire 26.2VAC YEL Wire 14.0VAC BLU Wire 0VAC BLK/BLU WireAnd i whant to know that can i do with this thing???Thinks: The transformer is used to drop the 120vac to around 26vac. Without the supporting components you will not get DC voltage. Now, you can bypass the tranformer if you have an adapter that puts out 30vdc or close to it and your speakers will work fine. Now, if the amp is built into the speakers, then it will not work.

Q:For my proposed new aluminium extrusion factory I ve the load of 250 kw heater and 670 HP of motors.Whats the kva rating of the transformer I should go for?Pls advice.: Your connected load is about 250 kW plus about another 700 kW (from the motors when taking into account efficency and Power Factor). So the total connected load is just under 1000 kw. This 1000 kw is about 1 MegaWatt ( MW). A MegaWatt is 1000 kW You want to oversize your transformer, to account for added load at a later time as well. If I was ordering the transformer, I would be looking at one to cover at least a 1.5 MW. This would be roughly a 1,500 kVA transformer. You could order one slightly smaller, and add cooling fans which come on at max loads to cool down the transformer and increase its kVA rating. Because you have a large motor load, you will likely need the full 1500 kVA unit, because of the Power Factor issues with motor loads. BTW --- there may be a 1 year lead time on ordering a transformer that size.

Q:design a quarter wave transformer to match a 73 ohms antenna to 300 ohms transmission line fed by a 100MHz FM radio station: Transformer impedance required: sqrt (73 x 300) 147.986 (say 148) ohms. The 1/4 wavelength in air is (75/100) 0.75 metres. You have not stated what you are using for the transformer, so you will need to allow for its velocity factor. But the transformer could be 0.75 metres of parallel rod spaced as required for the impedance. I am also assuming the antenna is balanced (sounds like a folded dipole).

Q:440 volts should be as dangerous as 11,000 volts because a transformer does not dissipates power it just converts voltage into current, my question is if the power at the secondary region is the same why it is said that it is not as dangerous.: You are correct that a transformer does not, ideally, extract any energy from the system. However, it's not always so straightforward to get the energy from the secondary into, say, a person. If the wires from the 440V secondary touched my clothes, I'd probably be safe because the cloth will insulate me from voltages like that, and thus no current will go through me. But if the wires from the 11kV side touch my clothes, the cloth will break down electrically under that high potential, allowing the current to go through me and fry my entrails.

Q:i wish to construct a transformer with 220/120v,60hz,5watt,plz help me: The short answer is – don't. Unless you have access to exactly the right materials and equipment, not to say the right knowledge and design tools, you are risking a nasty accident if you try to make your own mains transformer. If you want to experiment with making a transformer, choose one that operates at low voltage (25V or below on both primary and secondary) and remember the following basic design rules: (1) The voltage ratio Vpri : Vsec equals the turns ratio Npri : Nsec. (2) The primary inductance Lpri must be such that its unloaded reactance, 2pi x fLpri (where f is the operating frequency in Hz) is high enough to make it look like an open circuit when there is nothing connected to the secondary. (3) To calculate the primary inductance you will need data, and possibly software, supplied by the makers of the transformer core. (4) The core must be big enough not to saturate under the proposed working conditions. (5) The windings must be able to carry the proposed curents without excessive heating. Remember that heat cannot easily escape from the windings, so the normal ratings of wire to be used in fresh air do not apply. The current ratio Ipri : Isec is the inverse of the turns ratio, i.e. Nsec : Npri. (6) You need insulation beteen the windings and the core and between the primary and secondary. This is an insurance against failure of the insulation varnish on the windings themselves. (7) The core opening(s) should be just big enough to accommodate the windings, but ideally no bigger. Once you have built a couple of successful low-voltage transformers, you might consider upping the voltage, but do read more about it first. Meantime, if you want a 5VA mains transformer, they are really cheap to buy.

Q:actually I've many questions :) I've opened many mobile chargers and I didn't found the usual (bulky) transformer . I found only a small transformer and I think it called smps transformer.1- I can't understand how bulky transformers can be replaced by small ones! what is the idea ?2- are smps transformers connected directly to 220 volt like the bulky transformers ? if no, what is the design of the circuit that makes small transformers are able to be connected to 220 volt ?3- do smps transformers make a voltage drop like the bulky transformers ? or they have another job ?4- some smps transformers have 4 pins and the other have 5 or 6 pins, I know it should have 2 pins for input and 2 pins for output, why some of therm have more than 4 pins ?Thanks in advance, I hope i'm not bothering you because of my many questions :): You are looking at a switching power supply where the small transformer helps bring down the voltage and isolates the output (we hope) from the 220. The output of a charger is very small and even smaller when at 220 so a large transformer is not needed and the rest of the electronics regulates the output voltage and perhaps limits the current as the device gets charged.

Q:1.) What is the function of a transformer?a.) It is a device that can change the voltage of an AC supply.b.) It can change a low voltage supply into a high voltage supply or vice versa.c.) It is a device used mainly to change AC into DC.d.) A and B are correct.2.) What is the function of a transformer at a power station?a.) To convert DC into ACb.) To produce very high voltagesc.) To produce the currents in the power linesd.) None of the above.: For the best answers, search on this site

1. Manufacturer Overview
Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
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