360MVA/500kV three-phase self coupling OLTC interconnecting 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:	one	Coil Structure:	Toroidal
Coil Number:	2 Winding	Capacity:		Rated Voltage:	360MVA/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 360MVA/500kV three-phase self coupling OLTC interconnecting 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 360MVA/500kV three-phase self coupling OLTC interconnecting 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 360MVA/500kV three-phase self coupling OLTC interconnecting 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.

Q: I have just receive a gift from friends aboard. it is a transformer Universe Cyclonus with Nightstick. A Deluxe sized toy with Targetmaster partner.I have never heard about that. what is Transformer Universe? Is it a company similar as Takara Tomy?: Transformers: Universe is a Transformers comic series and toy line that introduced repainted versions of past figures. The Transformers: Universe toy line traces its origins back to when Hasbro imported the Transformers: Car Robots toy line from Takara and called it Transformers: Robots in Disguise. Although they made most Hasbro versions of the Car Robots characters, they also released a number of repainted molds from previous toy lines and released them as part of the Robots in Disguise line. When the Robots in Disguise line ended and Transformers: Armada started, the repainted product line was given its own title: Transformers: Universe. If you want to see more informations in detail, strongly recommend you to visit its official site or Yahobby online store for product list.

Q: A I have a 230V/12V, 3A step-down transformer. What will happen at primary side of transformer if I attach a 12V/5A device at secondary side? Will primary side attributes (such as voltage or current) change?: The primary will pull 261mA. more than likely, you won't see anything like voltage drop on the primary or secondary, but you will see (maybe) thermal stress on the transformer as you're exceeding it's VA rating. If you cool the unit properly, it could last indefinitely.

Q: how to ground transformers at substations??: The steel body of the transformer and the neutral (wye point) should be bonded to a suitably installed and tested rod or mat by a cable capable of carrying the fault current that could occur. The wye point, in some cases, may be connected through a fault limiting resistor but this involves extra protection equipment and proper coordination. The actual type of ground depends on local conditions. A simple rod may be used in conditions where the ground has low resistance, a mat or multiple rods may be used in others. The resistance of the ground should be tested to meet local codes (usually 5 or 10 Ω). Since the design involves engineering and knowledge of national and local codes, it is best to have this done by a reputable engineering company.

Q: i have read different forums explaining what really is an isolation transformer but unfortunately i am having trouble on grasping the main idea? please help, why do they say that isolation transformer can help a person being electrocuted even if he touches one of the secondary terminals??? how is that??? thank you: how does isolation transformer prevent a person from being electrocuted when touched the secondary? There are two common ways to get electrocuted by line powered equipment. Using an isolation transformer eliminates one of those ways. To get electrocuted electric current has to flow across your body, typically your heart. If you connect each of your hands to the output leads of an isolation transformer, you still get electrocuted. But there is another way to get electrocuted using line powered equipment. One side of the electric outlet is tied to earth ground, so if you touch something connected to the hot side of the wiring and have something else (like your other hand) connected to something that is grounded (like plumbing or a grounded appliance) you get electrocuted. The output of an isolation transformer floats the output in relation to earth ground, so if you touch some part of the transformer's output very little current will flow through you even if you are standing in water. You may wonder why I said very little current instead of zero current. The reason is that we live in an imperfect world where the insulation in the transformer may not be perfect and your body has a tiny bit of capacitance. For most purposes this doesn't matter but if you are dealing with medical equipment with electrodes attached near the heart, this sort of thing has to be addressed. A GFI outlet works in a somewhat related way. It compares the electric current in the hot and neutral lines in the socket. If these currents don't match, the assumption is that something is shorting the hot side to ground (maybe through you!) and cuts the power.

Q: I know that in a step-down transformer if I have 10 turns on the primary coil and 5 turns on the secondary coil that the voltage gets reduced by half and the current gets doubled, but is there any other significance?: Often wondered this myself. There must be a reason why you get transformers with 1000 turns on the primary, and 500 turns on the secondary. If there wasn't a good reason why would manufactures bother putting more than 2 turns on the primary and a single turn on the secondary? The ratio remains the same! Think it could be something to do with the impedance the transformer offers to the input, and output circuits. impedance is kind the AC equivalent of resistance. If it's high then there'll be a fair impedance(resistance to the instantaneous flow of current for a given instantaneous voltage. More turnslonger wirehigher impedance? Matching of impedance between circuits can be important to ensure maximum efficiency/preventing echos etc.

Q: 630 kilovolt transformer secondary side of the current is how much: There should be a second test voltage to calculate the current, but generally no load 400V. Full load 380V. Primary side rated current: I = 630000 ÷ 10000 ÷ 1.732 = 36.37A Secondary side rated current: I = 630000 ÷ 400 ÷ 1.732 = 909A Maximum output power P = 630 * 0.95 = 599KW (COS ? by 0.95) The maximum output power P = 630 * 0.9 = 567KW (COS ? by 0.9)

Q: i wish to construct a transformer with 220/120v,60hz,5watt,plz help me: Transformer is a thing which can reduce or increase voltage. In your question, You want to make such a transformer which can reduce the voltage is called a step down transformer. In transformer there are two coils. One is Primary and the rest of them is Second nary coil. Primary Coil is connected with input(220v) and Second nary with output(120v).To get 120v in output the transformation ratio should be 220:120 means 11:6.

Q: What is the role of the pebbles in the transformer base: Transformers base need a pool around the pool inside the pebbles, the role of the pool called the reservoir, that is, when there are accidents, transformer oil leakage, the pool can store oil to prevent the oil flow everywhere, the pool filled with pebbles, in order to Safe, on the one hand is to prevent oil burning. As well as for the convenience of the transformer body above, the following is better than a deep pit convenient? Transformer oil pit volume is calculated in accordance with the transformer oil, there is a certain depth.

Q: I want to multiply current 10times for a second or two. So, is there any easy way to do that without using a high power transformer?Thanx.!: Current from what kind of source, into what kind of load? Does the load take AC or DC?? What voltage does it need?? Why do you have to multiply the current? You can get clever with things like bucking switcher supplies to take 120 volts in and get 12 volts out at about 10x the current, but if your load isn't DC it doesn't help you. Edit:? 30 A @ 8 V isn't much, just 240 watts.? You can probably get this out of an old computer power supply; just re-wind (or add an extra winding in series with) the 5 volt winding on the toroid transformer to get 8 volts.? You may have to get fancy to get it to stay on (lots of the newer supplies want to be loaded, and want special signals to run) but with common supplies putting out 400 watts and more you should have no trouble.? The only issue is that you won't get 50 or 60 Hz, but since you didn't say your load has any particular frequency requirement I'll offer this as a possibility.

Q: If a typical class 2 transformer is rated at 40 va.what is its true power rating(purely resistive load)and how is it calculated? Thx: If the load is purely resistive then the power factor is 1. This is because the true power is equal to the apparent power. The reason the true power is not always the same as the apparent power is because the load may be either capacitive or inductive. This causes the phase of the current waveform to be either leading or lagging compared to the voltage waveform. Power is still the voltage times the current but since they are out of sync if you slice up the waveform into small segments and do the calculation for each slice and the average them all together the real power is less then the apparent power. The apparent power is the the product of the rms voltage and the rms current. The answer to your question is that the true power rating is the same as the apparent power rating. It is not calculated because by definition if the load is purely resistive the true power rating is the same as the apparent power rating. I hope this helps.

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