278MVA/500kV single-phase double winding OLTC converter transformer

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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:	one	Coil Structure:	Toroidal
Coil Number:	2 Winding	Capacity:		Rated Voltage:	278MVA/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 278MVA/500kV single-phase double winding OLTC converter transformer 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 278MVA/500kV single-phase double winding OLTC converter transformer. 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 278MVA/500kV single-phase double winding OLTC converter 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 OLTCconstruction application in our country, greatly improved the technical level and manufacturing ability of BTW in terms of OLTC Transformer products.

Q: can someone please give me transformers war for cybertron ps3 controlls: Transformers: War for Cybertron ROBOT CONTROLS: Left Analog Stick Move Right Analog Stick Move Camera. Aim. X Button Jump. Double Jump (Tap Twice). Square Button Reload. Pick Up Weapon (Hold). Action. Triangle Button Switch Weapon Circle Button Throw Grenade L1 Button Aim Down Sight L2 Button Use Cooldown Abilities L3 Button Change Form R1 Button Fire Weapon R2 Button Use Energon Abilities R3 Button Melee Attack FLIGHT CONTROLS: Left Analog Stick Move Right Analog Stick Move Camera. Steer. X Button Ascend Square Button Reload Triangle Button Switch Weapon Circle Button Descend L1 Button Boost L3 Button Change Form R1 Button Fire Weapon R2 Button Barrel Roll TANK, CAR, AND TRUCK CONTROLS: Left Analog Stick Move Right Analog Stick Move Camera. Steer. X Button Jump Square Button Reload L1 Button Boost L3 Button Change Form R1 Button Fire Weapon R2 Button 180 Degree Turn (Tank). Dash While Hovering. Ram While Boosting (Truck). Dash While Hovering (Car). Flip While Boosting (Car). SPECIAL CONTROLS: Directional Button Left Streaks (Multiplayer). Down Look at (When Prompted). Start Button Pause Menu Select Button Show Scoreboard hope this helps!!

Q: For a project, I need a sine wave with an RMS amplitude of 1000 V at least.I have a function generator that only makes sine waves at most of 7 V RMS.I have a neon transformer w/ a 120 V primary and a 3,300 V secondary and a step down transformer w/ a 120 V primary and 16 V secondary, which is used backwards.Well, I can only get 585 V max. I decided to get some low power step down transformers (Hammond Mfg. 162 series) w/ dual primary and secondary windings. so I can try different combination of step up.I thought the smaller the core would be less of a load for the generator. I get 30 V out of the HVAC tran. (10 VA rating) when the big transformer is hooked up, but for a Hammond w/ a similar winding ratio and (1.1 VA) w/ a similar winding ratio, but I can only get like very little out of the big transformer when hooked up.Is there another factor. I read something about transformer impedance, I was thinking of doing a quick measurement of that on them.: You are confusing VA (power ratings) with transformer ratios 120/16 7.5 :1 3300/120 27.5 : 1 So connect 7Vrms to 16 input to give output 1 52.5V Now connect this 120 (52.5V) output to the 120V input of the 120/3300 transformer The output should be approx 52.5 x 27.5 1444 Volts Use the 16/120 to step up and then the 120/3300 to step up again Take the function generator voltage to its lowest and measure at all points now gradually increase the generator voltage measuring at all points until you get what you want If the voltages are not as you expect then the VA ratings may be a problem Remember to be extra careful with High Voltages

Q: I was wanting to buy my little brother a transformer toy, but not one of these cheap ones you buy today, but one you actual transform by yourself like when I was younger. So whats a good website where I can find some for him and me to play with, and I don't really want to spend to much on them, just enough.: Amazon

Q: I have a friend who lives in a place that she converted to a liveable space at a movie studio complex; however, the space is right above the transformer used by the studios for power. At night we can sometimes hear some buzzing sounds. How dangerous is this? We've heard things like it causes cancer in the long run, and that it is simply not safe. Does she have to worry about it? She's been there about two years.: Transformers can produce powerful electromagnetic fields, but there is no definitive answer on the safety of living next to transformers. Some people believe the electromagnetic fields cause health problems, and others do not. Bona fide research on health risks has produced sometimes contradictory results. One thing is for sure, high capacity transformers occasionally explode if they get overloaded, but these types of transformers are not allowed inside of buildings.

Q: Does anyone have any knowledge or experience with what happens if you try to run two different power supply transformers from the same AC line input. Can you do that? I have one transformer with a primary DC resistance of 28 ohms. I have a second transformer with a primary DC resistance of 265 ohms. I want to run these two transformers from the same AC power cord input. I tried connecting their primaries in series across the AC cord input, and the resulting secondary outputs from both transformers were lower than expected for a no-load condition. I am a little concerned about trying to connect the two transformer primaries in parallel.Any ideas?: Transformers are connected with their primaries in parallel quite often. However don't connect the secondaries in parallel. For instance a step down 120 to 6.3 volt transformer can be used to power the filaments of a vacuum tubes in an amplifier while a stepup 120 to 350 volt transformer is used to provide the operating voltage for the tubes. Both transformers would use the same input voltage and would run off the same ac line. In practice both the step up and step down transformers end up being combined into one transformer.

Q: I mean i want to watch transformers 3, do i have to watch 1 and 2 to enjoy the film ?: 3 does relate to 1 and 2 No, not really but it helps to watch the prequels. I understood 2 without having to watch 1. The only thing I don't understand is why Bumblebee's vehicle mode license plate is different from his robot mode plate?

Q: I have a standard transformer with 7 wires:2 black2 red2 yellow1 red/yellow stripedWhat connections do these wires correspond to?That is, which should connect internally to the primary coil, the secondary coil, and coil-taps (based on the number of wires, I assume that the secondary coil is tapped).I must determine this in order to connect the wires (externally) appropriately.Any help is greatly appreciated!: Raptor gave good info. I would add just a few points: 1. The high voltage winding usually has the smaller gauge wire. 2. The high voltage (primary) winding also usually has a higher DC resistance and fundamental frequency impedance than the secondary. 3. Be sure to scrape the insulation off the wires before checking the resistance. Many years ago, an idiot I was working with didn't recognize that the wires had enamel insulation on them, and connected the transformer backwards. It was a 480 V / 1 V (or so) instrument transformer. We lost a lot of good equipment and nearly lost people because of that screwup. The recorder saw 2 kV before it died.

Q: The difference between the reflection impedance of the ideal transformer and the hollow core transformer is different.: The ideal transformer reflection impedance is the equivalent impedance of the load resistance equivalent to both ends of the primary coil, directly across the primary coil at both ends, in parallel with the primary circuit, and the nature of the reflection impedance and load impedance of the same nature.

Q: Three-phase transformer how to calculate the current, ah, the formula is?: Calculation formula and empirical formula of transformer secondary current Three-phase transformer current calculation formula I = S / (root number 3 * U), where U is the transformer line voltage, KV Transformer Current Experience Port Algorithm: Primary Current I ≈ S * 0.06 Secondary Current I ≈ S * 1.5 For example: a 500KVA transformer to calculate the current and secondary current, with the current formula I = S / (root 3 * U) I = 500 / root 3 * 10 = 500 / 17.32 ≈ 28.8AI = 500 / root 3 * 0.4 = 500 / 0.69 = 724.6A with the transformer current experience calculation formula: I = 500 * 0.06 ≈ 30A I = 500 * 1.5 = 750A Transformer operating load requirements For example: a 800KVA10 / 0.4KV transformer, according to the first and second current calculation, a variety of load current is how much? Solution: Primary current I = S * 0.06 = 800 * 0.06 = 48A Secondary current I = S * 1.5 = 800 * 1.5 = 1200A Low load: Primary current I = 48 * 15% = 7.2A Secondary current I = 1200 * 15% = 180A Reasonable load: primary current I = 48 * 50% = 24A Secondary current I = 1200 * 50% = 600A Full load: primary current I = 48 * 75% = 12A Secondary current I = 1200 * 75% = 900A

Q: What is the transformer absorption ratio (R60 / R15): ransformer absorption ratio (R60 / R15) is essentially the same as that of the shaking generator. It is a megger to measure the insulation between the transformer coil and the ground. In the measurement start time, 15 seconds to observe the insulation resistance value, 60 seconds and then observe the insulation resistance value, the observed 60 seconds of insulation resistance value in addition to 30 seconds of insulation resistance value is the transformer Absorption ratio.

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