Dry-Type Power Transformer

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Loading Port:: Shanghai

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Supply Capability:: 1000sets set/month

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1.Product description
SC(B)10 resin-insulated dry-type transformer is designed basing on the Dupont(the USA) NOMEX paper insulation system. the other key components are made from imported materials (such as german MKM copper foil). with advanced manufacturing equipment and technology, the product enjoys high performance, low energy loss, safety and reliability, its especially suitable for high buildings, airports, substations and commercial centers, and any other anti-fire, anti-explode, anti-moisture places etc.

2.Specification

Type	Rated current	Voltage combination(KV)		Connection	No-load	Loss(W)		Impedance (%)
Type	(A)	HV	LV	symbol	current(%)	No-load	load	Impedance (%)
SC10-30	1.73/43.3	6±2.5% 6±5% 10±2.5% 10±5% 10.5±2.5% 10.5±5% 11±2.5% 11±5%	0.4	Dyn11 Yyn0	2.5	190	700	4
SC10-50	2.89/72.2				2.2	270	990
SC10-80	4.62/115.5				2.1	370	1380
SC10-100	5.77/144.3				1.9	400	1570
SC10-125	7.22/180.4				1.7	470	1840
SC10-160	9.24/230.9				1.7	540	2120
SC10-200	11.6/288.7				1.5	620	2520
SC10-250	14.43/360.8				1.5	720	2750
SC10-315	18.19/454.7				1.3	880	3470
SC10-400	23.09/577.4				1.3	980	3990
SC10-500	28.9/721.7				1.3	1160	4880
SC10-630	36.4/909				1.2	1340	5870
SC10-630	36.4/909				1.2	1300	5960
SC10-800	46.2/1154.7				1.2	1520	6950	6
SC10-1000	57.7/1443.4				1	1770	8130
SC10-1250	72.2/1804.3				1	2090	9690
SC10-1600	92.4/2309				1	2450	11730
SC10-2000	115.5/2886.7				0.9	3320	14450
SC10-2500	144.3/3608.4				0.9	4000	1717

Q:What is the difference between transformer MVA and KVA?: They are megawatts and kVA Unit (power in the power of S units) Megawatts 1 MVA = 1 thousand KVA Megawatt and kVA KVA = 1000W, trillion volts = 10 of the 6th power W

Q:I am a young electrical engineer and need to review the basics of transformer saturation: conceptually as well as the mathematics and theory behind it.: Every magnetisable substance behaves like a collection of tiny compass needles, each of which can align itself with an externally-applied magnetic field. P.E. is stored in these compass needles and is released when the field collapses (and the compass needles spring back to their original positions). Since there are only so many of these tiny compass needles in a sample of magnetisable material, there is a limit to how much energy can be stored. Magnetic saturation occurs once all the compass needles are aligned with the external field. An inductor which has become saturated behaves as a simple resistor: it doesn't store energy, just convert it to heat. When a transformer core becomes saturated, the output waveform becomes distorted and the windings get very hot. Steel is generally good for a flux density of 1 - 1.6 Teslas (1 Tesla 1Weber per m?), the better grades being preferred for high-quality mains transformers as they allow cores to be made smaller. (Using a larger core would require more copper wire in the windings; there is a trade-off here.) Ferrites typically saturate at 0.2 - 0.5T, but are much preferred for high-frequency applications since the higher the frequency, the thinner each individual lamination would have to be to avoid eddy current losses.

Q:Hi i'm considering starting to read comics. transformers comics to be exact. i live in ipswich so i walked into my local store (central city comics) there was alot to choose from and i know that there is loads of transformers comics out there I need some advice on starting a collection: just okorder

Q:50KVA transformer each phase current maximum band: Transformer output power is apparent power, and active power (KW) relationship: apparent power = active power × power factor. With an average power factor of 0.8, the 50 KVA transformer can be the load power (50 KVA × 0.8) 40KW of active power. 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 want to buy the original transformers, but i see there are different parts like more than meets the eye orarmada? idk, please help me. :): no, okorder

Q:Can a transformer alone be used for amplifying audio signals ? If yes how ?: Technically No. The transformer will not amplify a signal, however it can be used to make sure you use any signal you actually do have to your best advantage. A transformer is generally used to achieve an impedance match between the signal source and load. For instance if you were to connect an 8 ohm speaker directly to a 1 kilohm signal source, most of the available signal would be dissipated in the source resistance and less than 1% of the signal would produce movement in the speaker. If however a 1k to 8 ohm transformer is used to match the source to the load,up to just under 50% of the signal will make it into useful energy in the speaker. This is a substantial gain in performance of the overall system but is not actually amplification.

Q:Hi there.I have purchased a Stepdown Transformer so i can use a Record Cleaning Machine I am buying from the U.S.It uses a powered suction unit to clean the record.All transformers for use with American equipment have 110v output, but i think your equipment is usually 120v.in I have been told that there is nothing to worry about as 110v out on the transformer is enough to power the equipment connected to it .Our AC output in Australia is 240v but we can use any voltage from 220 to 250. Therefore 110v should be enough.can anyone clarify and tell me it should be ok.Thanks a lot in advance.: I live in New Zealand. We use 240v 50Hz mains here too. USA uses 110/115v 60Hz. There is a 10Hz voltage frequency difference as well as the voltage difference. The stepdown transformer will be rated for 110v RMS(root-mean-squared). This is a kind of average, for want of a better description. The peak voltage is 0.707 times the RMS voltage. This is the peak on one half of the sine-wave(180'), therefore the complete sine-wave mains frequency represents 1.414 times the RMS voltage.(360' sine-wave cycle) Multiply 110v by 1.414, and you will get the peak-voltage, which is the maximum that the AC voltage can swing, both in the positive and negative parts of the sine-wave. 110v example: 110 x 1.414 155, therefore, the PEAK voltage for the States is 155v AC, or thereabouts. 240v example: 240 x 1.414 339, therefore, the PEAK voltage for Aus/NZ is 339v AC, or thereabouts. All mains voltages are a measure of averages(RMS), so a 10 or so volts either side of the stated voltage, should not prove to be a problem. Provided that the stepdown transformer can supply at least a few amps of current on the secondary(the 110v side), there will be no problems at all. Technically, the 10Hz frequency difference can make a slight difference, especially if you are trying to power some sound equipment from the States, as the Australian/New Zealand 50Hz frequency will mean that the motor will run slightly slower then the designed RPM. However, in your case, I don't think it will make one iota of difference. :)

Q:A speaker with resistance R is rated at 16Ω. What ratio of NP:NSof the transformer is required so that the stereo thinks that the speaker is 8: same consequences as Electronyet in a various way. 7000 familiar turns divided via 350 secondary turns, 20:a million ratio sixty 3 volts on secondary situations ratio of 20 1260 volts on familiar. sixty 3 volts divided via a hundred ohms 0.sixty 3 amps on secondary. 0.sixty 3 amps on secondary divided via ratio of 20 .0315 amps on familiar.

Q:How do you test this transformer with a multi-test meter? It was in a gong style door bell system. The 'clanger' unit has two windings withe the striker arm parallel to the end of the windings. Elaborate please. parts are difficult at my location.: Dude This is an AC voltage the VA is the Power or Watts Ohms law PVA Volts multiplied by the Amps. They use an elecromagnet to actvate the plunger to stike the chime bar. Edzo It should state either VDC if it is DC volts. which it is not.

Q:If I have a primary coil and secondary coil each with 400 turns that acts as a transformer, and the primary potential difference is 2.988 V, and the secondary potential difference is 0.0551 V.I need to find the efficiency. Ideally, it would be 100%, but this is the real world. So I did N(turns) and Volts and used the equation [N(p)V(s)/N(s)V(p) ] *100%p primarys secondaryNturns of coilV potential differenceI had an answer of 1.84% which seems awfully low. Help please. Thanks!: You are right. The efficiency is that low. Take a look at it another way: Pin Pout if 100% efficient. Since we know a 1:1 turns ratio will produce the same voltage from one side of the transformer to the other, the current produced on the secondary is extremely low to pull the voltage down to .0551V. It makes this transformer extremely inefficient! I can't even think of how you would design a transformer that was this inefficient. I think even a large OD iron nail with a lot of eddy currents at 7.5k Hz I believe would be more efficient. The next worst way I can think of how to produce an isolated output is with a TEC using the Seabeck effect that is about 6% efficient.

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