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How do you figure out the amps of a transformer when it only tells you it puts out 20 vdc?
Wiki User
∙ 8y ago
I suspect you are referring to an external power supply for a device, which consists of a transformer and a smoothing circuit of some kind. Look on the device it powers, there may well be a rating plate or an input fuse. You might also find a VA rating or wattage rating. If so, Google for power formulae to manipulate to find amps.
Wiki User
∙ 8y ago
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What amps did avenged sevenfold use on nightmare?
The only amps a7x uses is the Marshall jcm800
Why is the secondary of a transformer a short circuit?
If you are saying that the secondary (output) winding on a transformer seems to be a short circuit, it is very likely to be low resistance and may only be a few ohms if you measure the resistance with an ohmeter. The only way it would actually be a short circuit is if something has been inserted which has shorted the wires or it has overheated and burnt through. In which case there should be an acrid smell. Or if you can see the wires you would see they were burnt. A short in the circuit it is powering could cause the transformer to overheat, burn out and short.
Will Selena gomez be in fiqure it out?
No, Selena Gomez will NOT be on Figure it Out. The reason being is because Figure it Out stars nickelodeon stars only. Selena Gomez is from Disney Channel
Are there 100A available on both bars of a 100A panel in a home and for instance can you draw 75A on each bar?
The amp rating of a panel is based on the size of materials used (the bars, etc). You can pull 400 amps through your panel (provided a 400amp breaker was in place); but it would probably melt down very quickly. Basically you have 100 amps total to play with: be it from two 50amp breakers or 30 subpanels pulling 3 amps. :D You just can't pull more than 100amps at one time or the main will trip. The 100 amps is a rating for each bar. If your panel has a 100 amp double pole breaker, then you can use up to 100 amps on each pole. You really shouldn't draw more than 80 amps continuously. But you can count on having that 160 amps avilable if all your loads use only one hot leg of the panel (120 volt loads instead of 240).
Is an ocarina hard to play?
Of the little I know about them my only source tells me no they are apparently an easy instrument to play
How do you size a transformer based on amperage I have a 1 KVA single phase transformer I was told I can only put 4 amps across the secondary. This transformer is 240 volt primary 120 volt secondary?
On a 1kva you have 1000 watts capacity. To fine the current the formula is I = W/E. The secondary side of the transformer has the capacity of 1000/120 = 8.3 amps. In your question you do not put the amps across the secondary you draw amps from it. Using the transformer to its maximum, without overloading it, the primary will be 4.16 amps at 240 volts and the secondary will be 8.33 at 120 volts. <<>> voltage times amps equals wattage
How do I make a 30 amp 250 volt line output only 220 volts at 30 amps?
you get a transformer...
If increase load of secondary side of transformer. why primary side current increases?
The wattage must remain equal on the primary and secondary sides of a transformer. An example to the above statement with a 1000 watt step down transformer. To fine the watts (load) the formula is W = A x V. The primary side of the transformer has the capacity of 1000 W = 4.16 Amps x 240 Volts. The secondary side of the transformer has the capacity of 1000 W = 8.3 Amps x 120 Volts. Using the transformer to its maximum, without overloading it, the primary will be 4.16 amps at 240 volts and the secondary will be 8.33 at 120 volts. As you can see the wattage (load) remains constant only the voltages and current change.
How do you multiply current transformer output?
There are many ways but never can you multiply the power. <<>> A current transformer is specifically designed, by amp turns, to only output 5 amps. Meters that are connected to CT's have a full range deflection (scale) of 5 amps. To do what you are asking seems pointless as there are no meters with 10 amp full scale deflection.
Do you have to use a transformer if your device have 900 Watts 220 V and 60 Hz with 7.5 amps?
If your device uses 900 Watts at 7.5 Amps, then it requires 120 volts. If you want to use it where the supplied current is 220 volts, then you'll need a transformer - but only if the device can operate on 50 Hz. Most places that use 220 Volts supply it at 50 Hz. If your device says it can operate on 50 Hz you can use a transformer.
What is monoblockamplifier?
Monoblock amps are two separate power amps, one for each channel.They are housed in separate cases. " Dual-mono" power amps are separate power amps-each with its own transformer, but in a single case. Both types are fed by a stereo pre- amplifier.Most amplifiers on the market have only one transfomer supplying both channels.Monoblocks are at the high end.
A transformer can only?
A transformer does many things.
How many amps in 11.000 volts?
The voltage tells you nothing about the current flow in amps, it's only the pressure sending current through a circuit. If a 11,000 volt supply is not connected to anything, the current is zero.
A transformer can only the voltage of an alternating current?
A transformer can only increase or decrease the voltage of an alternating current, and it is called step-up transformer or step-down transformer accordingly.
How many output amps from a 75kva transformer fed with 480 ckt.?
It depends on what the output voltage is. You only specified the input voltage, not the output voltage. The equation is 75 Kva = {some} amps times {some} kilovolts. (Minus incidental losses, of course, but you still need to know output volts.)
How you amplify the current from 5 amp to 10 amp on 12 v Dc supply?
The amperage rating of the transformer in a 12V power supply cannot be changed. The size of the copper windings determine the power load (amps) it can handle and the point where the lead is tapped off of the windings determine the voltage. The only way to increase the amperage would be to tap closer to the core which would lower the voltage.If you need more amps you have to have a heavier transformer.
What type of transformer has only a single winding?
the auto transformer is the one winding transformer. it ismaily used in practical purpose.
