आज आप Electrical Drawing आसानी से पढ़ना सीख जाएंगे @ElectricalTechnician

Friends, today's class is going to be of very basic level, but after watching this class, you will learn to read and understand this type of diagram. As you will see at the present time, I have a diagram here. You must have seen this diagram somewhere. Where have you seen? In DOL starter. The diagram of your DOL starter is made in this way. Now let's understand this diagram. What is this diagram telling you? In this diagram, there is an M inside the circle. This M tells us that if we want to start this contactor, then to start it, you know that in the contactor, you get A1 and A2 terminals here. You have to start it by giving power to the same terminal. Now, if you want to show this thing in the diagram, then a diagram will be made for it in two ways. In this diagram, you have been shown something like this. But if you look at it somewhere, or if you look at it most of the time, then the diagram will be made in this way. This diagram is called the coil diagram. Now, this coil can be of our contactor and it can also be of the relay. For whom will it be? To start this contactor, we make the diagram of the coil in this way. In this particular diagram, it is made in this way. Now, you will ask, what does M mean? Simply understand that the contactor is being used to start the motor. So, the name of this contactor is simply given here as M. If we want, then instead of writing M here, we can write KM1 or KM2 here. KM is used for contactor. 1 and 2 means how many contactors have been used here. If there is only one contactor, then we will write KM and leave it. If we have multiple contactors, then we will keep writing KM1, KM2, KM3 in this way. However many contactors you have. So, at this time, you understood what the meaning of this symbol is. Now, you know that to start the motor, we have to start this contactor. So, here you will see that to start this contactor, L1 is used here, i.e. the power supply of R phase. And if we want to operate this contactor, then we have to give either neutral supply or L2 power supply on the other side. When will we give L2 power supply? When our contactor requires 415V AC power supply to start it, in that condition, we will not use neutral supply here. We will use L2 or L3 power supply here. This means that the coil of this contactor should have 2 phase power. So, at this time, you will see that the line here is connected with L1 power supply. And here it is connected with L2 power supply. And in the middle of these two, a complete control circuit diagram has been made. You must have understood this much. Now see, the phase supply here is a joint. So, this joint means that the wire is going from here. And where is it going? Stop is written here. You know that to turn off the motor, we use this kind of stop-push button. Okay, we are putting the stop-push button, but below the stop-push button, an element is placed here. That will be our NO or NC. You can understand it simply by looking at the diagram here. At the present time, you will see that the push button on this terminal is short. What does this mean? This is our NC contact push button. What will happen? If I give power supply here, then the power supply will flow directly from this point to this point. And the power supply has gone to this point. And what is this? Start-push button. You can make a symbol of this push button here. Now you will see that the power supply coming from here will come to this point. But it will not be able to go ahead of this. Why not? Because here we can see that the circuit is open. If it is open, then the power supply cannot go ahead. To take the power supply ahead, you will have to press this push button. After pressing, it will close. After closing, the power supply can go ahead. Now if we want to close this contact, then we have to press this push button to close it. After pressing, it will close. After closing, the power supply will flow directly from here to this coil. This means that the L1 power supply will go to the A1 terminal of the contactor. Now what will happen? Now you will see that the L2 power supply has been connected to a device here. And there is an OL written near the device. OL means overload. This is our overload relay. The overload relay is used for the protection of the motor. You must know this. When the motor starts taking more current, the NO-NC contact here is open and closed. Due to its open and close, we can make some changes in the control circuit. At the moment, if our overload relay trips, then we have to close this contactor. Due to which the motor connected to it will stop. So for this, you will see that the 95-96 terminal of this overload relay has been used here. This can be 95 and this can be 96. Now what is needed here? This is NC. You will see the power supply. If it comes at this point, then it is closed. After closing, the power supply will flow ahead. This means that the NC contact used here will always flow the power supply and keep giving power to this coil. This means that the A2 terminal of this contactor will always get the L2 power supply. But the A1 terminal here will get less power supply. When you press this start push button here, then what happens when you press it? The power supply goes from here to this contactor coil. And the power supply was coming directly from here. Due to which our contactor will be turned on here. Now what happens when it is turned on? Now you will see that the name of this contactor is M. The same name has also been used here. This means that the coil of this contactor, the anode contact of this contactor, the use of that anode contact has been done here. What has been done here? The start push button here has been given the power supply from the stop. Let me make this thing here. What has been done here is that the power supply of L1 has been given in the stop first. Then here in the start. First the power supply in the stop. Then from here in the start. Then from the start, the power supply will go to the contactor A1. So from here, I connect the power supply to A1. Let's say this is A1. It has been connected to A1. Now this start push button has an anode contact connected in its parallel. Which one? The anode contact of this contactor. So for that, the input tunnel of the start push button. A wire is taken from the input tunnel of the start push button and connected to the anode contact of the contactor. So if I want, I can take a wire from here and give power to the anode contact at this place. We can do it like this. Now what will happen here? The power supply of the anode contact is brought from this output and connected to the input of the start push button again. It means that my terminal here has been brought a wire from this terminal and connected to this place again. If we want, we can simply loop on this A1 terminal to connect it in a better way. What will happen with this? By connecting it at this place, this wire has come here. It means that it has been connected at this place. Now at this place, you will see that the power supply is coming to the other point of the wire of the contactor. So what do I do here for this? I have a power supply of L2 here. This power supply has been connected to the overload relay. So I have brought a wire from here and connected it to the 96 terminal of the overload relay. And I have brought the power supply from the 95 terminal here and simply connected it to A1. So the connection that you are seeing now has been shown to you through the diagram here. You must have understood this much. Now if you want to understand its working, then simply understand that when we do nothing at this time, then the power supply that we will have, that power supply will be at this point from here and this phase supply will be here. And the power supply of our L2 will keep getting the power supply flowing from this place. Now it has not got the power of the second phase because of which it is not running. To start, simply press this button. As soon as you press the button, the power supply will go from here to this contactor and the contactor will start. After the contactor starts, if we release this push button, it will go up. If it goes up, it will be cut. So if the power supply is cut, it can be closed. So to give the power supply continuously, this contactor's anode has been used here. So when power is given to it, what happens when power is given, it will close. And by closing it, the power supply will flow from here and the contactor will start going from here. It means that now the power supply will flow from here and will not flow from this place. And the contactor will always be on. Now if you want to close it, simply press this stop button. By pressing this, the power supply here is completely cut. And because of the cut, the motor is closed. So we have understood this circuit diagram. Now let's go to the next circuit diagram. In the next circuit diagram, the same thing has been made here. But you will see that a light has been installed here. A pilot light has been installed. You will see that there are some indicators on top of the electrical panel. That indicator has been connected here. And with whom has it been connected? The anode contact of this contactor, a wire has been taken from its output and power has been given to the indicator. Now when will this indicator glow? When this contactor starts here. As soon as it starts, the power supply will flow from here. And because of that, this indicator will start glowing. Now here is a question for you. You tell me, how much voltage will this indicator work on my power supply? You have to comment in the comment box. You have to write that this light is working on a power supply of 415 volts. Or is it working on an AC power supply of 230 volts? Tell the answer by commenting quickly. Now friends, before moving forward, I would like to tell you that If you want to read this kind of electrical diagram, of a very basic level, I am telling you about this zero level through this class. If you want to go to the advanced level, What does advanced level mean? If you want to learn how to draw a starter, how to draw an HD panel, how to draw an LT panel, how to draw a VCB breaker, how to draw an AC breaker, apart from this, if you want to learn how to troubleshoot a diagram like this, if you want to understand by looking at the drawing, how the machine of which the drawing has been made is working, if you want to do some kind of modification in it, then how will you do it? You will understand everything through this class. In this course, you will get 20 classes. If you have seen 20 classes, then I say with guarantee that any drawing comes in front of you, LT panel, HD panel, AC breaker, VC breaker, pipe fighting panel, out of India drawing also comes, you will be able to read every drawing here. If you can read the drawing of PLC, you can also read the drawing of BFD, you can also read it. The whole explanation has been given in this class of this level. Now, if you want to join this class, then its fee is only 1200 rupees. You can join this class for 1200 rupees. But now August 15th is coming, so in celebration of that, I am giving an offer in my app. If you join our course before 15th August 2025, then you will get a 25% discount here. Means if you do 25% of 1200, then you have to pay only 900 rupees for this class. And this offer is only till 15th August. After that, if you are watching this video, then you have to pay the full 1200 rupees and join this class. To watch this class, our electrical technician app, which is available on the play store, more than 50,000 students have joined this app. And they are getting good knowledge through our app. So if you download the app, then you can also join the course inside it. Apart from this, if you want to join the course through the link in the description of this video, then you can also join through it. After joining, you can download this app, log in to it and watch the class there. I have given the link of all the courses in the description of the video. You can join from there. Apart from this, if you have any kind of doubt, if there is any problem, then you can talk to me directly. My mobile number is 8989044606. You can contact me on the WhatsApp of this mobile number and talk to me directly. Let's move ahead now. Here we have a circuit diagram where we can see that there are three stop buttons and three start buttons. Why do we do this? See, sometimes what happens is that we have to start and stop a machine or a motor from multiple places. If you want to start and stop a machine or a motor from multiple places, then what will you do if you want to stop it? You will connect all the stop buttons in series. Why is it connected in series? You know that the motor will stop only when the power is cut. The motor is running through this contactor. If you want to stop the motor, you have to stop this contactor. And to stop this, you have to cut the power supply that is coming. So you will see that the power supply that we have is going through L1 here. So the power supply from L1 is going from here. We gave it to the first stop button. Then the power supply from here went to the second stop button. Then the power supply from here went to the third stop button. Then the power supply will go to the start button. So what will happen with this? If I press any one of these three? If I press any one of these three stop buttons, then what will happen in this condition? It will open here. And because of its opening, the power supply will not be able to flow forward, because of which it is closed. So if I tell you that I have to close that motor from ten places, then what will you do? You will connect the remaining ten in the series of the first stop button. Whatever you want to connect, it will be in the series of all. The power supply from all will go to the stop. But if we change the question here, the question has been changed here that we should have three options to start that motor. I want an option that I can start the motor through all three. So what will we do in this condition? We will connect our start push button in parallel. Why in parallel? Because we have to supply power to this place to start it. So to supply power, what will happen if I connect these three start push buttons in series? If all three of them are connected in series, then all three push buttons will have to be pressed at the same time. Then the power supply will be able to go forward. But we have to give power to start it here. So what we will do? We will connect them in parallel. So now you will see what will happen. Our phase supply will come from here to this point, up to here, up to here and up to here. So you will see that all three start push buttons are connected here. All three are getting input power supply. Now if I press any of the three, as soon as I press, the power supply will go ahead from here and this coil will get power. And as soon as it gets power, this contractor will start. Come on, it started with the first push button. Now if I press the second one, the same thing will happen. The power supply will go from here to this. What will happen if I press the third one? The power supply will go from here to here. Now I told you a while ago that if our contractor gets power, then its NO and NC contacts change. As soon as it starts, its NO contact is used here. How did I find out that the NO contact is of this? So you will see that what is written here is M and M is also written here. It means that the NO contact of this contractor is used here. So what will happen in this condition? As soon as we press any push button, as soon as I press it here, the power supply flows from here and goes to this. And as soon as it starts, it will close. So what happens when it closes? The power supply that was stopped here earlier, will flow ahead and go from here. And the power supply will keep going from here. Now if I release it, what was it before? It was closed. Then I released it. So what happened by releasing it? The power supply will stop here. But through this, the power supply will start flowing here. Because of this, our contractor will keep running. So what is this? This is called remote controlling. If you want to stop it through the remote, then connect the stop button in series like this. If you want to start it, then connect it in parallel like this. The connection will be done. After this, you will see that we have a circuit here, which is made for the indication light here. But what is being done here? To start and stop the motor, this is the circuit. Along with this, you will see that NC contact is applied here. And through NC contact, the light is glowing here. So look at me a little and tell me, will this light be on or off at this time? I am giving you a minute's time. Think about it. Will this light be on or off at this time without starting the motor? Okay, I hope you have commented. Look, the answer to this is that the light here, this light will always be on. It will be in on condition if this coil is off. Why? Because here you will see that the NC contact is of M. What is M coil? Our contactor's coil. So if the contactor's coil is off, then this light will be on. And I told you that what will happen when the contactor's coil is on? Its anode contact will be closed and the NC will open here. And what happens when it opens? Its power supply will not be able to flow from here. So the power supply will not go ahead. What happened because of this? This light here, this light will be off. Is it clear? You must have understood. Now let's go ahead. Now look here, the same thing has been done. But different motors have been installed instead of light here. If you are told to make such a circuit, what happens in it? When we press the start push button, our first motor starts. And as soon as the first motor starts, the second motor starts. And as soon as the second motor starts, the third motor starts. If this is said, then you will make this circuit diagram. By the way, how is this circuit diagram made? How do you build logic? According to some question, I have explained all this in my electrician to engineer course at a very good level. This is a child's question. I have taught this at an advanced level. So if you want to go to an advanced level, then join that class and learn. For the time being, let's focus on this. See what happens here? The phase supply that we have, through this phase supply, all three motors are being given to control the power supply here. Now if we press the start button here, then motor number 1 will start. And the anaconda of this motor number 1 has been used here. Whose anaconda is it? Here M1 is written. I will zoom a little for you. You will see M1 is written here. So what will happen to M1 contact? It will be closed. And by closing it, the power supply that was available here, that power supply will flow ahead. As you will see, here at the present time, the power supply will be at this point and will be at this point. As soon as I start this contactor here, this contact will be closed. And because of this, the power supply went to M2. And what happened as soon as M2 started? Its anaconda is also closed here. As soon as it starts, this one will start. As soon as it starts, the power supply will go here to motor number 3. It means that here sequence by sequence is starting. When you press the start push button, the first motor will turn on here. And because of the anaconda of the first motor that was used here, the second motor starts here. And because of the anaconda of the second motor that was used here, the third motor will start here. Now you will see one thing here. If the over load relay of the first motor is tripped here, then what will happen? All three of them will be closed here. Why? Because because of its operation, this one is on and because of this one, this one is on. So if this one is closed here, all of them will be closed. But here you will see, if my over load relay of motor number 2 is tripped here, then the entire motor will not be closed here. Only motor number 3 will be closed here. Because because of this, this one is not turning on. Only this one is turning on. Now here if the over load relay of motor number 2 is closed here, then you tell me which motor will be closed. Here our motor number 1, motor number 2 and motor number 3. All three motors are close to us. Which of these three motors will be closed if this over load relay is tripped here? Comment and tell me. You will know only if you comment and think. So think a little. I hope you will give the answer. Is your answer correct or not? Check it. See, the answer here is that our motor number 2 will be closed because of its tripping. Along with that, our motor number 3 is running through this. So this motor number 3 will also be tripped here. Okay? So you will see that by closing this, it is tripped. And by tripping this, it will not be able to be closed. It will be open again. Because of being open, no power supply will be able to flow here. Because of which, this is also closed. Okay? So here I have told you a little basic level of drawing. Now friends, if you want to have more knowledge in reading elliptical drawing and want to go to an advanced level, then for this, you will have to join this class. If you join this class of our elliptical drawing, then you will get a lot of knowledge at an advanced level. And I would like to tell you once again that all our classes, I have given a 25% discount on all the classes till Independence Day. And if you want to join the class before Independence Day, then you will get our classes So if you want to join those classes, then if you want to boost your knowledge, then join the classes with the offer so that you have to spend as little money as possible and you can get as much knowledge as possible. If you go to join the course, then to reduce the price there, you will have to use the coupon code. The coupon code is India here. Write India. Simply your price will be reduced here. I have given the link of all the classes in the description of the video. Apart from this, I have also given the link of this app in the description of the video. Whatever class you join, whatever PDF you buy, all those things you can download by logging into this app at any time and you can see at any time. Okay, I hope you liked today's class. I will meet you in a new video. for watching this video.