50MVA/220KV SF6 Bushing startup/standby 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:		Coil Structure:	Toroidal
Coil Number:	3 Winding	Capacity:		Rated Voltage:	50MVA/220KV
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 50MVA/220KV SF6 Bushing startup/standby transformer, 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 50MVA/220KV SF6 Bushing startup/standby 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 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 50MVA/220KV SF6 Bushing startup/standby 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 UHV Transformer products.

Q:Transformer insulation level L175 AC35 / 5 What does it mean: 2, the insulation level of the transformer is according to the high pressure, medium voltage, low voltage winding sequence listed in the tolerance voltage value (the impact level in the former), during which separated by a slash. The neutral insulation level of the graded insulation is followed by a horizontal line at its wire end insulation level. Such as: LI850AC360-LI400AC200 / LI480AC200-LI250AC95 / LI75AC35. Meaning: 220KV three-side insulation of the main transformer, high-voltage side of the lead-side lightning impulse withstand voltage is 850kV, power frequency withstand voltage is 360kV, high-voltage side of the neutral point of the terminal lightning impulse withstand voltage is 400kV, power frequency resistance The voltage is 200kV;

Q:What is the difference between the inverter and the transformer?: Literally speaking: the former is the conversion frequency, which is the conversion voltage. Structurally speaking: The former is a complex electronic device, the latter is relatively simple equipment. From the working principle speaking: Inverter: first input AC rectifier filter, the control circuit according to the needs of the output modulation signal, the signal control power output tube turn on and off (usually half bridge or full bridge), by changing the turn on and off time, The corresponding output frequency. Transformer: the usual sense of the transformer is composed of multiple coil winding and core components, in which one winding on the application of AC voltage, the other winding will produce the induced voltage, the voltage ratio for the winding turns ratio, The main frequency of the output frequency is the same as that of the input, and the harmonics are predominantly even.

Q:I have a 240v-5v transformer for recharging, and it makes an annoying very high-pitched squeaking noise. What causes the noise?: Normal transformers with iron laminated cores operate at 50-60Hz (50-60 times a second), but transformers in modern cell-phone chargers and PC power supplies require a higher power than would be possible for the given size restraints. A 240v to 5V @ 1A 50-60hz transformer would be the size of a deck of cards and would weigh several kilograms, but if you replace the core of the transformer with a ferrite material (powdered iron) and switch the primary winding at high frequency, say 20Khz or more (20 thousand times a second) the size of the transformer shrinks to the size of a small coin. The ringing sound you are hearing could be caused by several things: 1. It's operated at a near-audible frequency, like 19Khz (not very likely) 2. It's under very high load condition and it's struggling to meet the power requirements and as a consequence the duty cycle of the PWM has increased which can make a chirping sound. 3. It's defective or dying, and it's having a hard time regulating the output voltage and it's excessively modulating the PWM. 4. You are young and young people have better than normal hearing in the higher end of the frequency range and you might be hearing a harmonic of the higher than audible drive frequency. Hope that answers your question :)

Q:What is the M of the transformer capacity MVA?: M on behalf of trillion. MVA represents the capacity of the transformer, read as: trillion volt. The conversion unit is 1MVA = 1000KVA = 1000000VA. Transformer (Transformer) is the use of electromagnetic induction principle to change the AC voltage of the device, the main components are primary coil, secondary coil and core (core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage regulator (magnetic saturation transformer) and so on. According to the purpose can be divided into: power transformers and special transformers (electric furnace change, rectifier, frequency test transformer, voltage regulator, mine transformer, audio transformers, IF transformers, high-frequency transformers, impact transformers, instrument transformers, electronic transformers , Reactors, transformers, etc.). Circuit symbols commonly used as the beginning of the number. Example: T01, T201 and so on.

Q:I own a 1973 house and want to do a little remodeling. It has a 25foot hallway with 3 (old fashioned) ceiling lights that I want to replace with recessed lights. I went into the attic to look over things - looks like each e-box is made of bakelite which makes sense due to its age, attached to a rafter. However, there appears to be a transformer with what looks like low voltage wires -redwhite- on top of the box.Can a qualified electrician please tell me what this is and do I need to worry about it when I retrofit to recessed cans?: I'm not an electrician, but I have a few ideas. First, Do these lights use standard incandescent bulbs, or something else? If they are plain ole incandescent bulbs, I'm left wondering what is going on. If I understand you correctly, each of the three lights has an old bakelite electrical box with its own transformer, with regular wiring coming into it, and low voltage coming out of it feeding one light fixture below. If thats the case, then you are going to remove the transformers along with the fixture. However, if its one transformer that feeds the three fixtures, then you have a low voltage light system and will want to remove the fixtures and transformer and run new electrical wire (Romex) to each of the three new fixtures. The previous answer was correct in that most houses only have one low voltage transformer that powers the doorbell buttons and chime(s). Some homes back then had intercom systems and/or security systems that would require a transformer. Another point: check the smoke detectors. If they are over ten years old, replace them. They only work for about 10 years (even the new ones).

Q:Can a electrical transformer have more the 1 input, while only having 1 output so that the power is combined into the 1 output,or would multiple inputs make the power feed back onto the other inputs and overload them.: Not an easy thing to do and definitely not for a beginner to attempt. Your wording of the questions shows you do not have the background knowledge to try it. Some transformers may be hooked so they have different input voltage ratings but what you are trying to do I'm not sure.

Q:I feel that Transformers was because that sh*t was hot! And Shia LaBeouf was pretty HOTT too!: Out of the two, I preferred Transformers as it wasn't quite so silly; the dance club scene in Fantastic 4 - where rubber guy shows off - was pretty stupid.

Q:In the transformer load calculation to be calculated when the fire pump: And then calculate the capacity of fire, this time part of the commonly used load fire exit, all the fire load plus fire when the important load, is the fire state capacity. In accordance with these two states, the larger capacity to select the transformer capacity! Phone typing is not easy, please adopt ~

Q:Did anyone actually buy Go-bots once Transformers came out?: dude gobots sucked. they were a poor mans transfromer

Q:I realize this may be super simple but i cant for the life of me figure out how to open a wall mount transformer it seems like they are snapped shut with no way to open?: I would ask you why you want to open the transformer? Are you salvaging it or are you just curious? Inside the brick as these transformers are commonly referred to, is a small electrical transformer. If your brick has AC output, that's about all you will see. If it provides a DC output, you will probably find a full-wave, bridge rectifier module in addition to the transformer. By the way, there are no user-serviceable parts inside. These bricks are considered disposable and therefore, are snapped shut, and/or ultrasonically or heat-sealed at the factory.

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