आज आप सिख जाओगे 100% Electrical Troubleshooting करना 👩🔧@ElectricalTechnician

Electrical Technician
42 followers
Jul 20, 2024
Friends,
using this electrical panel, today
I am going to teach you trouble shooting,
that is, if there is any problem in your electrical panel,
then how will you find that problem
and correct it? In
today's video, Through this you
will learn, see, first of all let us
understand the working of this panel, after that we will do trouble
shooting, so here at present time
my MCB is on, at present time the selector switch is at
zero position and everything else
is off. Now if If I press the start push button here,
you will see that this contactor has
started and the light here in the timer is burning, which
means that after the time set in the timer,
this
contactor here is getting closed, which means that one way
From this you can see that this selector switch is being turned on only for 10 seconds
and after 10 seconds the automatic
contactor will be closed when this
selector switch remains in off condition. Now
if I turn this selector switch to a
number. If I select the position then
what will happen in this condition, let's see that the
conductor pressed the start push button, the
timer is on, now
after the time of the timer is completed, you will see that this
contactor will start and this one is off
means that the time is When it is completed, the
first contactor will stop
and after it stops, the second
contactor will start, so this is the
only working of this starter.
Now if I press the stop push button on this one.
Our contractor is off, so
we understood the working of this panel.
After understanding the working, I
switch off the MCB here and also
switch off the camera once. Then there is a problem in this starter.
Let's
see the problem. Later we will find that problem
and rectify it. See, I
switch on the MCB here.
After switching on the MCB, I pressed the start push button. The
contactor is on.
Power is being supplied to the timer and through the timer,
this contactor is connected here. It
should be closed and this contactor should be turned on
but at present time you will see that this
contactor has not turned on. At present
time you will see that it is in off condition.
I have kept the selector switch here at number one position
and at number one position
What was supposed to happen here, this contractor was supposed to
shut down after it started and when it shuts down,
this one should have started at that time.
Now why did such a problem arise that
after pressing the start button here,
even the timer started. It is working and
after the completion of the timer time, when the
timer starts this contractor,
it is turning off after starting.
You see here, it is turning on and then turning off.
Now this is the problem.
How will we solve it? See, if you have
any electrical panel and
if there is any problem with that panel, then the
best way to solve the problem is to look at the
circuit diagram of that panel
like the circuit diagram given here. Let
us look at this circuit diagram and
after seeing it, we will easily understand
that our
contractor or how the device is
working, like at the present time,
this device is ours. It is not working, it is
not turning on, now
what is the reason for it not turning on, we have to find out,
so first of all we will go to the circuit of this device,
that is, where this device is
in the circuit diagram,
then we will look at it. For this, here you will see that it is
written k2, this is the
device, through this device we have our
contactor, this contactor will be our current,
now the circuit diagram is here,
look at this circuit diagram carefully at the present
time. You will find that to
start this contactor, the
power supply is from this selector
switch and from here, the power supply which
is our timer here, the terminal of this timer which is number 18
means that it is ANO contact. The
contact is
coming through the anode contact and
in the current working time you can see that on pressing the start push button, the
power supply is coming from here
and is turning on this contactor
and here which is our There is a timer, this timer is
also working, but when the time of the timer is getting
completed, after completion, when
this contractor is being started,
then at that time this contractor of ours is getting
closed, it is also getting closed. This one is
also shutting down whereas only this one should have been shut down,
it should have remained on, now why is this
happening, we have to see,
see at the present time, this much
circuit is working here, okay this circuit is
working for us. And this circuit is also
working but it is not starting,
so we only have to see its circuit,
then we can see that the
power supply to this contactor is
coming from terminal number 18 and directly from the selector. We
have to check this wire going to the switch, then here we have to check whether the
power supply is coming to it or not.
Okay, so to check this, here
we have to see the terminal number 18 of the timer. The
number terminal is here
and this wire is connected to this terminal.
I will show you a little zoom,
this is our wire which is connected at this point.
I close the MCB, otherwise
current may occur. I have closed it now. This is
our wire, we will check this wire,
where has it gone, okay here,
we will check this wire a little, whether it is correct or not,
then we will check this wire, whether it is correct or not,
this wire is ours correct, now with this selector
switch. Where will the power supply go to
turn on this contactor, as you will see, there is a
selector switch here,
when we keep this selector switch on off,
then the power supply from here will
not go to this point but when we turn it on, The
power supply of this point
should go to this point, so the power supply from here will
go to the
A1 terminal of our contractor. There is an A1
terminal here, so we will check the wire connected to this terminal.
This is correct, you
saw it in the beginning also. That which is our
contractor, it was switching on and then switching off.
Such a problem is also coming, so
here is our contractor, this is the
main circuit of this contractor, this is our
main circuit, the main circuit is working
because Here our contactor is
switching on but after switching on it is switching off
immediately. Why is it switching off
because if we have to hold this contactor
then we
make a holding circuit to hold it and the holding circuit does
not work here? Now here I
see that this is our contactor, the
N contact of this k2 contactor is on the
contact on which the wire is connected, one to two, these
two wires are connected, are our wires
properly connected, otherwise I
see here. I pull this wire,
it is connected properly, I also
check this wire, it is a little loose connection,
okay, so we have to connect this wire again here
and let's see whether the
problem is solved or not. If yes, then
I loosen this terminal a little
and then connect it here.
This wire is ours.
After connecting it, check again. Switch on the
MCB. After switching on, the
selector switch here is ours. The number one
position is selected, it means that this
contactor should also be on. Pressed the start push
button, it is on. The
timer is running. After the completion of the timer time, it should
start. Let's see once
it starts and then stops again. It means that
here the wire of our holding circuit is
properly connected, yet the
contact here is not working, that means the
circuit is not working. Now
what would be the problem here, let's see this also,
see if so. If a problem arises,
you will have to check here whether the
power supply of the wire connected at this point is
able to reach this point
or not. If you
want to check whether the contact here is correct.
Otherwise, for this, turn off the power supply.
After turning off the power supply, put your
multimeter
on the continuity position.
After putting it on the continuity position, touch the probes of both the multimeters.
Continuity is coming.
Check whether there is continuity, everything
is fine, now take this prop and
connect it here. Ok,
after connecting, no beep sound is coming here.
Now what do you have to do here?
You can check the contact by pressing it
or you can check it by pressing the push button here. If at present the
power
supply has been turned off, then
after turning off the power supply, we can check it by pressing it.
Here you do
not use your finger, take a tester,
press it like this through the tester, a beep sound should come here,
then on releasing it, the beep
sound should go away as you will see when you
press it. It is about to be released, it is about to be pressed, it is
about to be released, it means that our contact is correct, it is
working properly, still
we are not getting hold here, now
what is the reason behind this, let us know.
Before doing this, I would like to give you a small information,
see friends, I have launched a new
book named
Electrician A to Z Wiring Book, this is a
book, you get a lot of information in this book
as you
know. When we work in the industry,
we have to remember a lot of formulas.
If you do
not want to remember any kind of formula, if
you want to remember only the rule of thumb, that is,
by doing a simple calculation, if you want to do
something. If you want to find out, then for that you have to
remember the therm rule and that
therm rule has been explained about that therm rule
in my book,
as you will see in this book, if the motor is of
that motor. If we want to know the kilowatt rating,
then for that
we will simply multiply 0.75 by the horse power.
We will know the kilowatt rating of the motor.
Similarly, if you have a
single phase motor, if you
know the current rating of that motor. If you want to do this, then simply
multiply the Hers power by six and
your answer will come, for example, if you want to know the
current rating of a motor of 10 Hers power,
for single phase, then
in this condition we will multiply by six by
10*. 6 will be 60, meaning that 60 amps of
current will flow from the single phase motor whose
power rating is 10 hp. Well, you
can understand it here. Apart from this, the
rating of the inverter is how to know the battery.
How to know the size, how much
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connection of Geezal too, if you
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information about ammeter and volt meter. You will get the information which is our
motor, when should we connect it in star,
when should we connect it in delta,
what happens when we connect it in star connection,
what effect it has on our motor when we do it in delta connection,
every single information
you will get in this. Apart from this, you will get
many important
circuit diagrams in this book, such as the
circuit diagram of single phase motor, which is dual
starter, star delta starter,
reverse forward starter,
you will also get the circuit diagram of all of them here.
If you want to buy this book,
then you will get the link of this book
in the description. I
would like to tell you one thing here that
this book is available only in PDF format,
its hard copy is not available. It
is a hard copy, I am not selling it
because this is a book, we
can only get it printed in color,
we cannot sell it in black and white because
in black and white you
will not understand the concept and color printing is not possible. At present the course is
going for 700 plus due to which
I am not getting it printed.
If you want to buy this book for ₹ 7700
then you can message, I will sell it to you, get it
printed and provide it to you.
But I would recommend you that
through this book, you only
need knowledge and whether you take the knowledge from PDF
or from the book, the thing is the same, so
try to buy the PDF of this book
and
Get the knowledge through PDF. The cost of PDF is only Rs.
99 and by paying that Rs. 99, you
can buy this book. The link to buy the book is
in the description.
You can buy it by clicking on it after buying.
Which is my app Electrical Technician App,
you will login there,
after login, go to the course of the book, you
will get the content there,
after going to the content, you can download the book from there,
if you do not download the book. If you are
able to do it then don't worry at all,
what do you just do, send it to my
whatsapp2 number which is in this
shot, I will provide you the book,
now let us move ahead,
now friends, let us talk about what is the
current time in this starter.
See what problem is coming in it, the
problem is nothing, only
continuity of power supply is not being maintained here,
now how to find out, see if
your contact here is also correct and you
also know that it is the holding circuit. If you are facing problem here, then
check the power supply coming in that wire, as you will see that the
power supply coming at this point is our power supply. It has been told
in this circuit that
which is ours. Here the main power supply is
coming through it and here
you can practically see that there is an MCB here, the
power supply from this MCB has gone to the push button here
and by looping a wire from this push button, the
contactor of this The
anode contact of this contractor has been provided there, then by
looping the power supply from here, the
anode contact of this contractor has
also been provided, which means that the
looping of the power supply of the holding circuit has been
done here. Now here we We will check whether the
power supply is available here or not. For
this, we will have to select the voltage on the multimeter.
After selecting the voltage, we will connect one probe of the multimeter
to the negative power supply
and the red probe will be connected to
it. To check the voltage,
we will have to turn on the power supply here.
After turning on the power supply,
here I check whether the
power supply is coming at this point or not. You will see that
218 volts are shown here. It means
that the power supply is coming. Now I
check the power supply at this point. Here
we are not getting the power supply, which means that the
power supply from this point is
not able to reach here, which means that from this point. There is
a problem till this point, let us
check its output also,
power supply is not coming here. If
we are not getting power supply here then it
means that the power supply cannot go beyond this point. If
we want to find out why power supply is not coming at this point,
then to find out you will
have to check this wire here. If you
feel that the wire may be damaged, then
in this condition you will have to maintain continuity at these two points. If you
have to do this then switch
off the power supply and then connect
both the probes of your multimeter
here and then at this point.
After connecting these two terminals, you should
get continuity but here
continuity is not coming.
Why should we get continuity? Because here the
looping of the wire is directly and
in the condition of directly looping, we should
get continuity here but still it is not
getting it. Now what to do here, see
if you are not getting continuity here
then use this wire. You will have to check the power supply,
so in this condition you will have to check this
wire. To check,
turn on the power supply, then
after this, open the wire from the last end here
like I have done here.
I open it and when I open it, I can see that
my wire here is cut, which
means that its insulation was not removed due to
which
we were not getting power supply here. If your
insulation here is open, it means. If it is correct
and it was connected properly here, then
in this condition you will have to check this wire.
To check, you will have to supply power here.
You will have to supply power directly on one end
and on the other end you will have to check it
through a tester or else. You have to
check through your multimeter, so like I
remove the insulation of this wire here,
after removing it, I connect a prop
here like I put it here,
keep it here for a minute and The
second probe is, I connect this probe here,
I can see that here
we are getting power supply, that means
power supply is flowing through this wire
and the wire is ours is correct, if I do
not get power supply here. For example,
I connected it at this point and another prop was
connected here, yet if I did
not get power supply here, then I would assume that this
wire has been
damaged and I would replace this wire. If at this
time
everything is fine, then I turn it off.
After closing it, I connect it again here and
then check whether it is
working properly here or not,
then I turn it back on. I put it here,
then I connect it and
after connecting, I switch on the MCB here.
After switching it on, I press the start push button.
Here the first contactor is on, the timer is
running. After the completion of the timer time,
this contactor should start,
you will see here that it has started, it
means that our entire starter has been repaired.
Well friends, if you are trouble shooting
in star delta or reverse five
starter in dual starter. If you are not
able to do it or you are not able to do the wiring after reading the drawing of this type, apart from
this, your complete
starter is Dual Starter Star Delta
Reverse Forward, how to make it, if
you are not able to understand, then for this, my One
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starter star delta reverse four
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If you join this course then you are going to
get here information about our motor which is the
connection of that motor and
apart from this which Ours is a dual starter,
how will you do the wiring of that starter,
how will you make your circuit diagram,
how will you do trouble shooting and all this. Apart from this, you will
also get complete information about your reverse phase starter as well as about
your star delta starter.
You will get complete information
in this course, so if you
want to join this course also, then you will get the
link of this course in the description. The
fee of this course is only ₹ 2000000,
you will get so many classes which
you can watch. You can easily learn many things,
okay friends, apart from this, if you
want to buy this book also, then
I have given the link of this book
in the description, by clicking on it, you can read the
PDF file of this book.
You can download the PDF file by buying
it. Okay friends, I
hope
you liked this video.
Thank you for watching this video.
