hola como estan Yours Professor REYNER again we found our YouTube platform
will continue with the exercises connection engines today because we are going
to do another exercise and good here goes on to say the following scenario draw
the outline control and the force of a delta star start then we are going to continue with
the delta star starts of a three-phase motor with this taking into account the
following parameters in the connection it says here that when pressing that 2 that surely
represents us , the star five start is carried out seconds after it is the prudent time
this will automatically switch to the connection of the prudent time trance that is
said to go away that must exist between one boot and another then now we will go on
to the software to make each of the connections of the components
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Well young people here we already have the assembly of all the components and well this one in the previous video
we saw the importance why we were going to connect or in the industry why is
this kind of connection or motor start-up carried out since today there are other
more sophisticated methods and I explained that this was due to the fact that these methods are more expensive a
frequency inverter is much more expensive so this method is still being used with this
contactor starter with a set of connections in some contactors one can achieve reversal of
turns right here in the interior exercise we did a star delta start but it was manual today
we are going to make a timer means that we are going to use a timer in force we are
always using the same components we have the motor the thermal relay the three main contacts or the
three km one is the main one which is the one connected to the power supply path of the motor a
contact a contact that represents the high start and one that represents the triangle start in
force we have all the same torque emergency that represents us that zero we have that one that
represents for the machine we have that which means running and more here we have the 3 with the
3 contactors km / 1 that is the one of the main line is here m one is the one of the main line and
also do the self-retention we have here m3 that represents in this case the triangle
start and we have here m2 that represents the delta start when there is a start we are going
to say so in operation the other cannot enter so the k m3 sends to deactivate here
m2 and k m2 because it sends to deactivate the k, sorry, caem 2 sends to deactivate each
m3 and that's fine, then when it enters delta delta sends to deactivate star when
this star star deactivates delta if this This way it works and we have the lamps
that represent each of the starts and then we have a red system shutdown
and here we have an alarm when there is some kind of fault well we are going to do an
active simulation We set our circuit breaker in force and it is activated immediately also in control
and well, we are going to put here that 2 it is activated here m 1 the motor is turned on km / 1 sends to also activate
the timer count when the 5 seconds pass the star will pass delta you already know
that everything is the purpose of this start is to achieve a soft start and decrease the peaks of
this electric current so here we see it is counting the 45 seconds and later it really
sends to activate the other the other moment that is the delta then it We are going to do it again
so that you can see there they are turning in this direction and then this one, as we can see, goes to delta
and also really well the direction of rotation is still the same because we have not made investments
. turn then we stop the machine we do it again
as we can see there is the count and after the count they send to activate the motor in the other
in the other in the other connection now we are going to see here it is working in delta we are going to simulate a
heating here with the thermal relay and the alarm must be activated in this case the alarm must be
activated and also at the same time because the system is stopped now we are going to do it again
but when they are high in These seconds, as we can see, we are not going to wait for the
five seconds to end, we are going to simulate some kind of fault, some problem that may occur and
yet we see that the relay is activated, the thermal relay has ended, its contacts are closed, it opens
to cut the current and the open one closes to send the fault message well here we are going
to say that we have finished this simulation in the next video we are going to make one by adding something to
another different situation and thus we are going to continue doing each of these exercises any
situation will leave me in a comment for this to be able to see in what way we help them and nothing
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