DOL Starter Wiring Diagram
The given figure shows the DOL starter wiring diagram and this shows that the DOL Starter has two buttons which are used for the starting and stopping the motor working and thus control the contacts.
This consist of circuit breaker, contactor and overload relay for the protection purpose. So the motor s started by pushing the green button and voltage appears on the motor , since it contains 4 pole type contactor and contains three normally open contacts which connects the motor to the supply and the fourth one is used to push the contactor coil as the start button gets released which is turn leads to the de-energization of the coil in case of occurrence of the fault and hence the starts gets disconnected from the main supply.
DOL Starter
For cases to avoid damage to the motor, various techniques are used to reduce the starting current with the use of a motor starter, these techniques vary on different factors and also protect the motor from overcurrent and overloading. DOL starter is one of the techniques used and in this article, we are going to discuss DOL starters and the starting of induction motors. We will cover what is starting induction motors and their functions, what are DOL starters, their application, terminologies, theory, construction, working, and the difference between DOL and star-delta starters.
Table of Content
- DOL Starter
- Important Terminologies
- Construction and Working
- 3 Phase Motor Starter with Overload Protection
- DOL Starter Wiring Diagram
- Advantages , Disadvantages and Applications