jbk high voltage transformer power transformer

jbk high voltage transformer power transformer

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 500 unit/month

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Scope of application

The transformers are applicable to AC50-60HZ circuits,it could be widely used on control power supply for mechanical equipments such an bridge crane,ship,wind power generation,photovoltaic power generation,testing machines,local lighting,signal lamps and others.

Characteristics

It has charachteristics of excellent performance,reliable operation,low energy consumption,small volume,safe wiring and wide application,and as it can work for a long term under rated load,it is an ideal variable voltage power supply.

Overall and installation dimension

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Specifications

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About us

The main products include different kinds of transformer ,such as EI transformer,encapsulated transformer ,switch power supply transformer,inducatance transformer,BK&JBK transformer,toroidal transformer,intelligent servo transformer,three-phase dry type transformer,QZB transformer,special transformer and others.

We does a lot of tests during design,developing and the application of raw material and uses high quality raw material fianlly.So the transformer has the advantages of low no-load loss,high efficiency and low temperature rise.It has been widely used in household appliances,intelligent meters,solar meters,solar meters,automatic equipment,special equipment and others.

In the process of manufacturing and business,We always sticks to the principle of honoring contract,keeping credit,complying with business ethics and seeking the perfect quality.Being the leader of transformer and electronic components industry is the development goal .Comparing price under the same quality and comparing quality&service under the same price is the business concept .Devoting of your requirement,We will supply you excellent service from products concept to designing,sample making,confirmation,producing,testing and delivering.We would like to cooperte with you and build a bright future together.

Q: A CD player uses two 1.5 v batteries. If you want to plug it into a 120 v outlet, what kind of transformer will you need (Step up or Step down)? What must be the ratio of the number of turns in the primary to the number of turns in the secondary?: there is not any longer something incorrect with the turns ratio; the topic is that the sq. wave has severe frequency harmonics that are no longer nicely taken care of by technique of the ferrite. extra importantly, you're turning out to be to be magnetic saturation of the ferrite. you should do a calculation, based on the meant familiar contemporary, of the magnetization of the ferrite (a wisdom sheet on the middle will help), and from which you will calculate a suitable style of familiar turns.

Q: I love the Transformers movies and games to death, but I've never ever been able to like the cartoons.I know they were somewhat popular, especially as the first Transformers game was a huge successplease add why you like/dislike it.thanks in advance: I hated the old transformers cartoon movie with a passion. Mainly cause my ex used to watch it over and over and over again, and Cry at the optimus part every freakin time. By the time we broke up, I wanted all transformers things to die. I'm recovering slowly.

Q: hello Im trying to ride my jet ski but the battery keeps dieing I tested my rectifier and it is getting no current at all but my stator is kicking out power so could I use a transformer to change the current from AC to DC or 20v AC to 13.5 volts DC: No. Transformers and rectifiers are completely different things. A transformer converts high voltage AC current to low voltage AC and vice versa. A rectifier converts AC current to DC at the same voltage. In your case, you need 4 new rectifiers to convert 20V AC from the alternator to 20V DC and a voltage regulator to fix the output voltage to around 13.5V DC

Q: How to test E-I Transformer having 10 terminals (pins) 5 on each side ? thanks: If a transformer has shorted turns, every winding will show drastically reduced inductance than is required for the circuit to operate. For example, the inductance of an audio transformer has to be at least L Z/(2piF), where F is the lowest frequency, audio ~20Hz and Z is the circuit impedance. So an 8 Ohm speaker winding should have 60mH or more inductance. The resistance of the winding should be less than 10% of the operating impedance. The maximum operating frequency of a transformer is something less than the self resonance and the minimum load is that which provides critical damping of the self resonance. So large transformers just work better since they have more inductance and less resistance With a signal generator, scope and some series resistors, you can find the inductance etc.

Q: Hello everyoneMy last question may be a little misleading and I couldn't respond to my own question so please forgive me when I rephrase it again.I have a 65w stepdown Input230/240 AC, Out: 115V AC. 65VA transformer and I wanted to know if I should be concerned about how much electricity the transformer draws just by the fact that it is plugged into the wall socket even when the hardware connected to it is not on.I don't need an exact figure. Just a layman's terms as what your typical transformer would draw. An absolute average idea of the average transformer.If I turn the transformer off, all my appliances will need to be reset when I turn the transformer back on again.So does an average one consume as much as a light bulb, or say something much more. like a computer etc.I just need a general idea. Thank you.: No-load losses are primarily due to the so-called iron losses, i.e, hysterisis and eddy-current losses, and to a smaller extent, I-square-R losses. They vary quite a bit, but you can use a ballpark estimate of 5% to 15% of your transformer rating. Estimate between 5W to 10W of losses for your 65W transformer.

Q: I have a doorbell that quit working. I don't know how to tell if it is the bell or the transformer: you need to have a digital meter and know how to use it,,, or you could buy a whole door chime kit for like 15 buck and replace all the parts

Q: Three-phase three-winding transformer high-pressure medium-pressure low pressure is what it means: Hello! Transformer high voltage, medium pressure, low voltage, respectively, refers to the three groups of winding (rated) voltage level. For example: 220kV voltage level of the transformer: the 220kV high voltage side, 110kV pressure side, 10kV low voltage side of the three groups of voltage levels of the composition. Depending on the needs of the manufacturer, manufacturers may also be required to produce windings for other voltage classes. Such as: by the 220kV high voltage side, 35kV in the pressure side, 10kV low voltage side of the three groups of voltage levels of the composition. 500kV voltage level of the transformer: generally by the 500kV high voltage side, 220kV medium voltage side, 35kV low voltage side of the three groups of the composition of the voltage level winding.

Q: Can a transformer be used with dc? what happens is a transformer designed for 120v ac is connected to a 120 v dc line?: No, it can't. If it is connected to 120VDC, the output will give an initial pulse that decays to zero and stays there. The input will draw far more current than designed, overheat, and either open up or catch on fire. Here is how a transformer works with AC: The input winding generates a magnetic field (because it is an electromagnet). The field alternates because the applied current alternates. The alternating magnetic field couples into the output winding where it induces an electric voltage that alternates because the magnetic field is alternating. Now here's the kicker. The voltage induced in the output winding is proportional to the rate of change of the fluctuating magnetic field. If the field is static (ie, steady, as is the case if the input winding is powered by DC), then the rate of change is zero and the induced voltage is zero. That's why the transformer can't transform DC. Other interesting facts: The input winding converts electrical energy into energy in the magnetic field that is then converted back into electrical energy in the output winding. The input winding resists DC current based on the winding's resistance. If the input current is alternating, then it resists the current additionally based on the inductance of the winding, and the higher the frequency, the more it resists. A transformer is designed to work on a specific frequency (eg, 50Hz or 60Hz). Operating it at 0Hz (DC) will allow too much current to flow. The higher the applied frequency, the more power the transformer can transfer. Think of it as though the transformer passes a bucket of energy from input to output on each cycle. The more cycles per second, the more energy per second, aka the more power. At 0Hz (DC), it isn't passing any buckets of energy. Hope that helps.

Q: I read something somewhere once about using small mains transformers as substitute speaker transformers in valve circuits.Suppose I have a 6-0-6V transformer with a 240V primary. That gives a 20:1 turns ratio. So if the secondary is putting out Vs volts at Is amps into 8 ohms, then (neglecting losses) the primary will have 20*Vs volts across it and Is/20 amps through it. But we know that Is Vs / 8; so the primary will appear to have an impedance of (20 * Vs) / (Vs / 160) 3200 3.2k ohms.Am I thinking right? Or will the presence of DC in the primary ruin everything?I'm thinking of using an ECL82 (aka 6BM8) for my first project, as that has both a triode and a pentode with separate cathodes and seems to be available still. Is this a good choice?: Single-ended audio output transformers are specially designed with a small gap in the iron core material to prevent the DC plate current from saturating the core with magnetic flux. Power transformers do not have this gap (they would burn up if they did). Push-pull audio output transformers do not have the gap, because the flux due to the DC current flows in opposite directions toward both plates, thus cancelling out their respective fluxes in the core. It is technically possible to use a power transformer as a push-pull output transformer and your calculations are basically correct for impedance, voltage, etc. The HV output windings of most power transformers are usually split so, you could use the HV windings for the plates and the filament windings for the speaker. But, again, it cannot be used in a single-ended application. Furthermore, power transformers are designed for efficient power transfer at 50/60 Hz without regard to frequency response. Audio transformers are designed specifically for a wide (audio) bandwidth. You might get good bass with a power transformer as an output transformer, but that's about it. Bottom line: you really need a single-ended audio output transformer designed for the tube you plan on using and the power level you plan on producing. .