DBW SBW Compensated Voltage Stabilizer

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Loading Port:: Shanghai

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Supply Capability:: 10000pcs pc/month

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1.Application
DBW SBW compensated voltage stablilizer is a contact adjustable automatic voltage compen-sation high-power regulating power device. When voltage from supply network is varied or dueto loading current effect, it automatically regulates the output voltage to ensure the normal func-tion of the varied of electric equipments.

2.Specification

Input voltage	Single phase: 220V; Three phases: 380V
Output voltage	Single phases: 220V±20% or 220V±30% Three phases four-line: 380V±20% or 380V±30%
Phase	Single phase; Three phases four-line
Frequency	50Hz/60Hz
Response	within 1 sec.(against 10% input voltage deviation)
Efficiency	Better than 95%
Ambient temperature	-10^oC~+40^oC
Waveform	Non-lack fidelity waveform
Insulation restortion	Better than 5MΩ
Overload	Double rated current, one min
Protection	Overvoltage, overcurrent, feed phases

3. Outline and packing

Type	Outpower(kVA)	Outline(cm)	Weight(Kg)	Qty/CTN
DBW-20K	20	70 x 50 x 135	283	1
DBW-30K	30	70 x 50 x 135	310	1
DBW-40K	40	70 x 50 x 135	330	1
DBW-50K	50	80 x 60 x 150	360	1
DBW-60K	60	80 x 60 x 150	380	1
DBW-70K	70	80 x 60 x 150	100	1
DBW-80K	80	90 x 70 x 170	430	1
DBW-100K	100	90 x 70 x 170	480	1
SBW-50K	50	80 x 62 x 135	350	1
SBW-60K	60	80 x 62 x 135	370	1
SBW-100K	110	85 x 52 x 150	420	1
SBW-150K	150	100 x 72 x 170	550	1
SBW-180K	180	100 x 72 x 170	570	1
SBW-200K	200	100 x 72 x 170	630	1
SBW-225K	225	110 x 80 x 180	660	1
SBW-250K	250	110 x 80 x 200	700	1
SBW-300K	300	110 x 80 x 210	740	1
SBW-320K	320	110 x 80 x 210	760	1
SBW-400K	400	110 x 80 x 210_/2	1100	2
SBW-500K	500	110 x 80 x 210_/2	1500	2
SBW-600K	600	110 x 80 x 210_/2	2200	2
SBW-800K	800	85 x 100 x 220_/3	2800	3
SBW-1000K	1000	85 x 100 x 220_/3	3500	3
SBW-1200K	1200	85 x 100 x 220_/3	4100	3
SBW-1600K	1600	110 x 110 x 220_/4	5560	4
SBW-2000K	2000	110 x 110 x 220_/4	7100	4

Q: I have a bulb that currently uses a 120V primary to 6V secondary transformer. The load is a 30Watts. I would like to know what transformer I could use to power 8 bulbs (6v 30W each) ? Thanks. How can I calculate that?: Assuming you wire the bulbs in parallel. You need a similar transformer (6v secondary) but one that is rated at 240 watts (or a bit more), 40 amps. Note that the current will be 40 amps and will need quite a heavy wire, #4 or 5. You could also put the bulbs in series, and would need a 48 volt secondary, still at 240 watts. You would have problems of any series string, if one bulb goes out, they all go out. You can also use parallel series combos, 3 pairs, or 2 strings of 3 each as a compromise. edit. Later thought of another alternative that may help. Get a transformer with a 12vCT 240W secondary. Wire like you would 2 phase house wiring, 3 bulbs to each outside terminal, and all 6 to the CT. This means the wire only has to handle 20 amps and can be smaller, and you will not have the series string problem. 12VCT transformers are fairly common. Or if you can find it, and the wiring is still a problem, get a transformer with 2 secondaries each of 12VCT at 10 amps.

Q: Transformer fever how to do?: ?Equivalent aging principle is the transformer in the part of the running time of the winding temperature is lower than 95 ℃ or underload, then in another part of the time can make the winding temperature higher than 95 ℃ or overload, as long as the overload time more than the life of life is equal to Transformers in the under-load time less loss of life, both offset each other, it can still maintain a normal life. ????Transformer insulation aging six degrees principle: ????When the transformer winding insulation temperature in the range of 80 ~ 130 ℃, the temperature rise of 6 ℃, the insulation aging rate will be doubled, that is, the temperature rise of 6 ℃, the insulation life is reduced by 1/2, which is insulation aging "Six Degrees".

Q: 1000KVA transformer power loss is how much: It depends on its kind of transformer oil-immersed transformer or dry, 1000KVA dry-type transformer no-load loss of about 1.5% to fill the load loss of 3%, oil-immersed transformer no-load loss of about 3% to fill the load loss of 5% The above is just for reference, because each manufacturer has a difference.

Q: Actually both amplifies the input voltage. A step up transformer amplifies the input voltage and a transistor also amplifies. So what is the differece????: A okorder

Q: What is the M of the transformer capacity MVA?: MVA with a table of his capacity, read: trillion volts in which M with a sign The conversion unit is 1MVA = 1000KVA = 1000000VA

Q: I love the movie transformers and cant wait till part 2.Anyone know anything about it specifically???: I finally saw it a month ago on dvd and I hated it. It was another typical Michael Bay film, full of action, special effects, little characterization, and not that much story. Even some of the scenes and dialogue were horrible. Having Optimus Prime say my bad was corny and embarrassing at the same time. Prime would have never said that in the 80's cartoon series. Or when one of the Autobots decides to pee. Dumb, just plain dumb. I'd give it 2 out of 4 stars.

Q: anyone else see the trailor for this movielooks kinda goodthough, it may be were the transformers are bad guys, i dunno: My friend andrew was an extra in this movie

Q: Can a transformer having a given VA rating at 50Hz handle more power at a higher frequency, say, 300Hz or 400Hz?I want to build an inverter to run an 11 watt compact fluorescent lamp. Since these devices rectify the supply directly, there does not seem to be any good reason to feed the lamp with 50Hz.If my understanding is correct, the core has to be able to store up to one half-cycle's worth of energy in the magnetic field (which will then be released out of the secondary winding in the form of electricity) to avoid going into saturation and overheating. So at twice the frequency, it should be possible to push twice as much power through for the shorter half-period without saturating the core. (Actually, probably a little less than twice as much, as there will be more resistive heating; but transformer wire is often slightly thicker than it really needs to be, just because it's less likely to break in the winding machine.)So can I over-run a transformer this way, or is there some gotcha that I've missed?: The equation V 4.44fNaB determines what is required for a transformer to avoid saturation. V is the voltage, f is the frequency, N is the number of turns of wire in the winding, a is the area of the core, and B is the peak magnetic flux density. The transformer has presumably been designed so that the peak flux density is as high as it can be without saturating the core. For an existing transformer, V/f a constant. If you increase f, you can increase V so that V/f remains constant. However, the hysteresis losses increase in proportion to the frequency increase and the eddy current losses increase in proportion to frequency squared. In addition, skin effect will increase the copper losses at higher frequencies. Reducing the copper losses by reducing the current would compensate for the skin effect. Reducing the copper losses would tend to compensate for the increased iron losses, but it is hard to say how much a cooler coil will compensate for a hotter core.

Q: i have fuses and everything that i can use to test my primary but should i add more turns on the primary side? yes i know line voltage is dangerous. yes i have worked with it before and know how to work around it.: 1. I don't see why a power transformer from a UPS would get hot unless it was overloaded or short- circuited, or incorrectly connected. 2. If you are going to power the circuit you indicate, and it requires 12V at 5 A., there are plenty of power transformers off- the shelf you could use to build a power supply with. It would need to be rectified and filtered, for DC output as you require. Possibly voltage- regulated as well? Gets costly Another way would be watch OKorder or similar for a switchmode power supply that does the job (more efficient, less weight). Example: I used 2 computer power supplies I bought brand new, for $A5.00 each, to power a linear RF amplifier that needed 10V DC @ 15A., and a bias supply of -5V @ a few mA. I wired them together to produce 10V DC 26A, using the 5V 26A outputs in series. I only needed to isolate the neg. end of 1 of the 5V outputs from the common ground to get both in series. The bias -5V I derived from the -12V out of one of the supplies, with a 7905 voltage regulator to cut it to -5V. My point is, this entire power supply weighs about 3/4 KG. It is voltage regulated and overload protected, and compact. A standard power supply with output levels like this would be considerably heavier and bulkier, and considerably more expensive.

Q: What is a transformer?: First talk about the buck, usually we use a variety of voltage, such as life lighting is 220V, industrial safety lighting is 36V, welding machine voltage also need to be adjusted, which are inseparable from the transformer, the transformer through the main and auxiliary coil electromagnetic Mutual inductance principle, can reduce the voltage to the voltage we need. In the process of long-distance voltage transmission, we need to raise the voltage to a high, in order to reduce the voltage loss, usually rising to several thousand volts or even tens of kilovolts, which is the role of the transformer.

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