S9 SZ9 S11 SZ11 35KV grade oil type transformer

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35KV grade S9 series of oil-immersed power transformer

1. General

The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit resistance strong. The iron core is made up of cold-rolled silicon-steel plate of high-quality. high –voltage winding group is made up of high-quality oxygen-free copper liner lines and it adopts multilayered drum type structure. All fasteners have been processed with special treatment to prevent them from loosening.

As high-tech product that promoted by the country, the product has many advantages such as high efficiency, low loss, its social benefits are remarkable that it will save much of electricity consumption and operating cost.

1. Technical parameters

Rated capacity (KVA)	Voltage combination(KV)		Vector group	Loss(KW)		No- load current	Impedance voltage	Weight（KG）			External dimension （mm）（LBH）	Gauge Longitudinal/transverse
Rated capacity (KVA)	HV	LV	Vector group	No- load	load（75℃）	No- load current	Impedance voltage	Equipment	Oil	total	External dimension （mm）（LBH）	Gauge Longitudinal/transverse
30	35 36.5 38 +5%	0.4	Yyn0	0.165	0.90	2	6.5	145	205	530	101010201425	550/550
50				0.21	1.25	2		210	195	585	101010201425
80				0.28	1.80	1.8		285	225	735	106011251560
100				0.31	2.03	1.8		340	225	830	109011501600
125				0.34	2.39	1.7		395	270	950	112011501625	660/660
160				0.37	2.85	1.5		475	285	1050	113012801680
200				0.43	3.30	1.5		560	310	1190	117013001710
250				0.52	3.96	1.4		650	350	1355	125013701735
315				0.61	4.77	1.4		760	390	1565	126013701780
400				0.75	5.76	1.3		925	490	1875	181012501865	820/820
500				0.87	6.93	1.3		1085	550	2135	185013601920
630				1.05	8.30	1.1		1285	615	2505	190013801990
800				1.25	9.90	1.0		1530	720	2945	210014002075
1000				1.44	12.20	0.7		1845	815	3500	222014302245
1250				1.76	14.70	0.6		1930	935	3975	226014302250	1070/1070
1600				2.15	17.55	0.6		2385	1070	4685	230014602470
2000				2.61	21.50	0.6		2630	1090	4890	238017402350

Q: I have a 120v-36v transformer hooked up to a bridge rectifier composed of 4x IN4004 diodes, 2 filter capacitors and a 100k resistor paralleling them as a bleeder resistor. The rectifier puts out the full 50v DC I expect it to, but at the same time the transformer faintly vibrates (you can only really tell if you touch it), and over time it gets quite hot. Why is this? I have checked over my connections quite a few times and I am 99.9% sure its all connected properly.: As Bill R says for working it out. As to how to answer in an exam, First write what is known, and what is wanted down. Write the appropriate equation(s) down and substitute values/simplify equation down as far as possible, you haven't been given all the information required to get that answer in the question. If you don't have all the data provided, and aren't expected to make assumptions then I'd argue the correct answer is actually the formulae produced when you've correctly put all that known in. But quite often you ARE expected to make reasonable assumptions. Sometimes an exam might have a cover page with assumptions to be made (if you don't make them you'll not get the answer right) sometimes you've just got to know how to make reasonable assumptions without being told. as it's 60Hz mains you're probably in the US. I'm in the UK so would it be reasonable for me to assume 50Hz mains if I were sitting the exam here? In cases where you have to make assumptions, it's usually a good idea to then state you are making an assumption. I suggest showing the difference which can happen if f is at least two different values eg finish with assuming f50Hz as mains is in the UK, then C needs to be C1followed on the next line by assuming f60Hz as mains is in the US, then C needs to be C2If you were feeling a little annoyed at those who wrote the exam, and wanted to make your point extra clear you might even throw in the case of f 120Hz. I believe many aircraft alternators generate AC at that f. Ask your teacher/lecturer about what kind of assumptions you might be expected to make. If they skirt around the issue maybe quote some Charles Babbage, and hope they laugh at the sarcasm ' On two occasions I have been asked,—Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out? I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.' —Charles Babbage, Passages from the Life of a Philosopher

Q: I know my user name indicates that I looooove X-Men but I loooove Transformers too. I was wondering if anyone knew who the transformer that comes out of the pool is. I have looked at the concept art and can't figure it out.: i'm really not surebut i love watching the preview over and overi can't wait for this movie!!!

Q: Can you put dolar energy through a step-up transformer to create more energy?: This question is worth people's attention

Q: What is the SN on the transformer? What is the difference between it and the actual power of the transformer?: Corresponding to the line of fire and the zero line, there is a L is the ground

Q: I remember a Transformers cartoon and there was like a gas in it and if the Autobots were in a place that the gas was in there, they would turn red and turn evil and fight each other. And also Optimus Prime was dead fist and then some Autobots bring him back to life And I think Rodimus has the matrix. What was that movie called?: Actually no. No knowledge of the TV series should affect you watching the movie. The story of the Autobots and the Decepticons is clearly explained in the movie. It doesn't matter is you've seen the TV shows or not. This movie is for everyone. Not everyone because there are some inappropriate terms used that you would usually hear in a high school. There is also one scene where a mother asks her son if he has been mas*****ting. It's not really a kids movie. But, despite that one scene, it's one of the best movies I've seen this summer and once again, no, you don't need to watch the TV series.

Q: Three-phase three-winding transformer high-pressure medium-pressure low pressure is what it means: Three-phase three-winding transformer high voltage, medium pressure, low voltage that the three sets of winding (rated) voltage level. Three windings have three windings per phase. When one winding is connected to AC power, the other two windings induce different potentials, which are used for loads of 2 different voltage levels. Power plants and substations are usually three different levels of voltage, so the three-winding transformer in the power system is widely used. Each phase of the high and low voltage winding are set on the same core column. In order to use a reasonable insulation, usually the high-voltage winding on the outermost layer, the pressure and low-voltage winding on the inner layer.

Q: I am building a high voltage air cored RF transformer.The transformer primary will be powered by a 12V square wave signal around 5-20kHz. The secondary needs to put out at least 1kV at very low amperage (less than 1A, the lower the better).The output will be used to charge a high voltage capacitor in a resonant circuit.What considerations I need to take into account in building the transformer?Thanks for all the help!: Last transformer I made had a 1000 volt secondary, a 28 volt primary, ran at 22kHz, and a 20mA capability. It was wound on a ferrite form and was a cube about 1.5 inches on each side. I had a lot of difficulty keeping it from shorting out. I used lots of special HV insulating tape between winding layers, and managed to get a few working, but it was difficult. It was used in a voltage doubler to generate 2500 volts DC, so the entire winding had to withstand that voltage. Remember that there are only a few volts between consecutive turns, but after a hundred turns, that builds up to hundreds of volts. .

Q: I have an AC to DC transformer I got out of a radio. I removed the rectifing (spelling?) circuit. So why is it that the transformer still only responds to AC input and not DC? I basically want a transformer that can take low voltage (aroung 6-12v DC) and step it up to 400VDC. Any suggestions or help?: Transformers don't work with DC inputs. Transformer physics require an input that changes with respect to time. That's why they work with AC. When you apply a DC input to a transformer, it looks basically like a low resistance, depending on the size and mass of the wiring. In order to provide DC as an input to this thing you have, you need a circuit to chop the DC and turn it into AC before it is input to the transformer.

Q: If a power surge from a house shot back towards a transformer, would it ground the charge or bypass the transformer and harm the surrounding wires?: No, the transformer itself wouldn't ground it. I don't know if they have some kind of surge protector, by the transformer would just 'pass it on' (most likely blow a fuse if the trannie survived

Q: What is his calculation? Trouble you prawn.: 250KVA transformer, the maximum capacity to load how much KW power? This is a bit of a problem, it is difficult to correct answer. Is it possible to ask how much the maximum load of the 250KVA transformer is KW? Or, how much amperes the maximum output current? If you ask, then answer you, the maximum output current is about 250 × 1.445 ≈ 361A or so

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