00:03Here the simulation is developed in both Proteos and Multisim. In Proteos we have the
00:07The next characteristic for reducing voltage is the formula to find
00:12The secondary impedance is equal to the output voltage divided by the input voltage; everything is
00:16squared multiplied by the primary impedance to raise the
00:20The formula to find the primary impedance is equal to the voltage.
00:25input over output voltage everything is squared multiplied by the
00:29secondary impedance to perform the simulation in Proteos for the transformer topic we have
00:36The elements to be simulated are an alternating current source, a single-phase transformer, and two other elements.
00:41The measuring instruments, which are two multimeters, at the start of the simulation we have a voltage of 220 and 60 hertz.
00:48When simulating the multimeter, we get a different voltage reading; this is because the simulation is not 220, it shows us the
00:54The value is 155 volts, so to perform the reduction we have the formula, we replace the
01:01We square the values and multiply by one hertz to obtain the value of the impedance of
01:06secondary is equal to 0.0059, we replace this value before the simulation
01:24We run the simulation
01:28and the requested value of 12 volts is observed
01:33To increase the voltage, we use the formula and replace the values; in this case, it is the
01:38input voltage divided by output voltage, we square all of this and multiply
01:43For one hertz we obtain the value that the primary impedance is equal to 166.84
01:50We replaced this value before the simulation
01:59We run the simulation
02:04and the value 2.23 kilovolts is observed
02:09The three-phase transformer has the same characteristics and formulas already described.
02:15Now, to simulate in Multisim, we have the following: there is a two-phase transformer
02:20coils in the primary of 220 volts and one thousand turns and in the secondary a current
02:25unknown we know well that the primary current is a half of the primary current
02:29This means that we can say it's 110 volts with 500 turns. Important here.
02:36It's doing a simple rule of three
02:43In Multisim we have the elements to simulate: an alternating current source and a transformer
02:48single-phase and two measuring elements, which are two multimeters, we have a voltage of 220 and 60
02:54The graphical problem tells us that we have an input voltage of 220 volts and a thousand turns in hertz.
03:01The secondary winding has 500 turns and we don't know the voltage
03:15Here we replace in the window in the primary and secondary coils we can put 1000 in the primary and 500 in the secondary.
03:33The simulation gives us values with a result of approximately 110 volts.
03:56As mentioned, a simple rule of three is necessary since if I wanted a voltage of 12 volts
04:02I would have to estimate a value like 50 turns in the secondary and it is observed that it gives us 11 volts and
04:08if it
04:08We performed the calculation for 55 turns and obtained a value of 12.1 volts. In the simulation, we changed the...
04:14coil ratios for both primary and secondary windings; the primary winding has a thousand turns.
04:19We have a fixed voltage of 220 volts and on the secondary we can have 55 turns; this is in order to
04:26run the simulation
04:32The simulation shows values in an approximate ratio of 12.1 volts
04:38That's all. If you found the video helpful, don't forget to subscribe.
04:42all the best
04:43but
04:43be deceived
04:44but
04:44but
04:45but
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