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Starter

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working of d.o.l starter In this video, you will learn about working of direct online starter with circuit diagram and also connection of dol starter, assembly, and disassembly of dol starter Now you can Join our whatsapp group. discuss your questions and problems. To join our whatsapp group click on the link https://chat.whatsapp.com/3XyNIE4AkrNFjmWuylcOv1 ----------------------------- social links -------------------------- Website = http://www.sandeepagarmortutorial.com Facebook = https://www.facebook.com/sandeep.agarmor.tutorial/ Twitter = https://twitter.com/sandeep_agarmor Principle of Direct On Line Starter (DOL) To start, the contactor is closed, applying full line voltage to the motor windings. The motor will draw a very high inrush current for a very short time, the magnetic field in the iron, and then the current will be limited to the Locked Rotor Current of the motor. The motor will develop Locked Rotor Torque and begin to accelerate towards full speed. As the motor accelerates, the current will begin to drop, but will not drop significantly until the motor is at a high speed, typically about 85% of synchronous speed. The actual starting current curve is a function of the motor design, and the terminal voltage, and is totally independent of the motor load. The motor load will affect the time taken for the motor to accelerate to full speed and therefore the duration of the high starting current, but not the magnitude of the starting current. Provided the torque developed by the motor exceeds the load torque at all speeds during the start cycle, the motor will reach full speed. If the torque delivered by the motor is less than the torque of the load at any speed during the start cycle, the motor will stops accelerating. If the starting torque with a DOL starter is insufficient for the load, the motor must be replaced with a motor which can develop a higher starting torque. The acceleration torque is the torque developed by the motor minus the load torque, and will change as the motor accelerates due to the motor speed torque curve and the load speed torque curve. The start time is dependent on the acceleration torque and the load inertia. DOL starting have a maximum start current and maximum start torque. This may cause an electrical problem with the supply, or it may cause a mechanical problem with the driven load. So this will be inconvenient for the users of the supply line, always experience a voltage drop when starting a motor. But if this motor is not a high power one it does not affect much. Direct On Line (DOL) Motor Starter Principle of Direct On Line Starter (DOL) To start, the contactor is closed, applying full line voltage to the motor windings. The motor will draw a very high inrush current for a very short time, the magnetic field in the iron, and then the current will be limited to the Locked Rotor Current of the motor. The motor will develop Locked Rotor Torque and begin to accelerate towards full speed. As the motor accelerates, the current will begin to drop, but will not drop significantly until the motor is at a high speed, typically about 85% of synchronous speed. The actual starting current curve is a function of the motor design, and the terminal voltage, and is totally independent of the motor load. The motor load will affect the time taken for the motor to accelerate to full speed and therefore the duration of the high starting current, but not the magnitude of the starting current. Provided the torque developed by the motor exceeds the load torque at all speeds during the start cycle, the motor will reach full speed. If the torque delivered by the motor is less than the torque of the load at any speed during the start cycle, the motor will stops accelerating. If the starting torque with a DOL starter is insufficient for the load, the motor must be replaced with a motor which can develop a higher starting torque. The acceleration torque is the torque developed by the motor minus the load torque, and will change as the motor accelerates due to the motor speed torque curve and the load speed torque curve. The start time is dependent on the acceleration torque and the load inertia. DOL starting have a maximum start current and maximum start torque. This may cause an electrical problem with the supply, or it may cause a mechanical problem with the driven load. So this will be inconvenient for the users of the supply line, always experience a voltage drop when starting a motor. But if this motor is not a high power one it does not affect much. For sandeep agarmor tutorial videos click below link https://www.youtube.com/watch?v=yB3CecLhvlk&list=PLIto_V4Krof6nDowksLzMkEo4SwIZtIp8 इस चैनल के सारे वीडियोस की लिस्ट देखने के लिए निचे लिंक पर क्लिक करे click below to watch list of all videos of our channel https://www.youtube.com/playlist?list=PLIto_V4Krof6nDowksLzMkEo4SwIZtIp8 our popular videos how to do staircase wiring https://www.youtube.com/watch?v=HTvBv1RFdW8
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автор  дата 13.10.2018
This series of videos will follow the restoration progress of a 1978 Series 3 Land Rover. Part 5, is the rebuild of a Lucas 2M100 Starter Motor. Including new ...
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автор  дата 13.10.2018
Magnesium Is An Awesome fire Starter If Used Correctly. Most People Do Not Know How To Use Magnesium Right for Starting A Fire, So Here Is How To Do It ...
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автор  дата 22.05.2013
In this video I'll show you how to do a simple test on your starter that will tell you if the starter is getting power or not. If it is getting voltage then this diagnosis this ...
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автор  дата 04.11.2014
Starter replacement. How to replace a starter in your car, DIY with Scotty Kilmer. How to inspect and replace a bad starter. Starter location, inspection, diagnosis, ...
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автор  дата 15.10.2018
Die 14. Folge vom Projekt Minecraft JET! Bewerten nicht vergessen, droppt eins Like! ♥ ✖ Zinus Abonnieren: http://goo.gl/IE0uG3 ✖ Mein Twitchkanal: ...
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автор  дата 24.10.2017
In this video we are going to discussing the very important topic in electrical. We will discussing about types of induction motor starter.We will discuss about ...
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автор  дата 16.10.2018
Check out the Nintendo Switch starter kit for Starlink, which includes an exclusive Star Fox pilot and Arwing ship model for the game! Starlink: 28 Minutes of New ...
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автор  дата 01.07.2018
This is a guide a lot of people have been asking me to do for a while. I really hope you guys find this helpful. Everyone's always asked me what my secret was to ...
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автор  дата 24.02.2017
Episodes 1-7 of Starter Squad. Episode 8: https://www.youtube.com/watch?v=mCZw2LhMkBM "Starter Squad" is a Pokemon parody series created by Pierce ...
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автор  дата 12.06.2011
Visit me at: http://www.ericthecarguy.com/ Once again I team up with BBB Industries to bring you the basic steps in starter diagnosis. If you suspect a bad starter ...
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автор  дата 15.10.2018
Let's take a look at all the Decks you get for free, and see what we make of them. Subscribe for more! Patreon ▻ https://www.patreon.com/rsMerchant Follow me ...
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автор  дата 11.05.2015
Here is a quick video on how to test a Starter and Solenoid assembly, using just a screwdriver, jumper wires and a 12v battery. Not the most scientific test but its ...
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автор  дата 25.06.2018
How to Instal Single Phase Submersible Pump Starter Wiring In Hindi & Urdu | MVT Skills.
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автор  дата 13.01.2017
Learn how to diagnose and replace a starter in your car or truck. In this video I show you the common causes of a car that doesn't turn over, and then I show you ...
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автор  дата 16.10.2018
If you're new to this whole Call of Duty Zombies thing or just looking for some quick tips, we got you covered. In this video we break down the basic layout of the ...
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автор  дата 21.01.2013
How to test a starter with a screwdriver and jumper cables ..on and off the car..how to troubleshoot a bad starter.. Troubleshooting DIY ... How To Bench Test A ...
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автор  дата 07.10.2018
Red teams cooks an amazing and easy to make grilled prawn dish for Marco Pierre's White restaurant MasterChef Australia S08 Subscribe and never miss a ...
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автор  дата 26.11.2016
Cheesy Biscuit Starter - Quick & Easy Cheesy Starter Idea - Party Appetizer Recipe Cheesy Biscuit Starter is a mouth-watering treat that everybody loves. This is ...
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