All controlling of starter are controlled by this circuit. A wiring diagram of a dol starter is shown below.
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Dol starter control wiring diagram. An over load relay for the protection of motor against over voltage under voltage single phasing over current etc. L1 of contactor connect no to r phase through mccb. 1 the following links are pre fitted to the starter. The r y and b phase are connected through mccb to the contactors. In the below dol starter wiring diagram i shown a molded case circuit breaker a magnetic contactor normally open push button normally close push button switch thermal overload relay motor trip indicator and 3 phase motor. This is the wiring diagram of a dol starter mccb or circuit breaker.
Akrtechnical dolstartercontrolwiring hi i am abhilash k r welcome to our malayalam youtube channel akrtechnical. Dol starter control power wiring diagram overload indicator wiring in malayalam. Wiring of dol starter 1. Since the dol starter connects the motor directly to the main supply line the motor draws a very high inrush current compared to the full load current of the motor up to 5 8 times higher. L2 of contactor connect no to y phase through mccb. A wiring diagram normally provides details regarding the loved one position as well as plan of tools and also terminals on the tools to assist in building or servicing the gadget.
A wiring diagram is a streamlined standard pictorial representation of an electric circuit. Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram. All other control and power connections have to be made by the installer. L3 of contactor connect no to b phase through mccb. Dol starter control circuit diagram consist components like main power contactor start button stop push button and overload relay is connected in series this circuit is called control circuit of dol motor starte r. In the above three phase dol starter wiring diagram.
Assortment of motor starter wiring diagram pdf. Figure shows the conttrol diagram of the dol starter as you have seen in the diagram the starter contains a miniature circuit breaker for the incoming supply protection. 13 17 with a flying lead to be connected to overload terminal 95. Contactor is connecting among supply voltage relay coil and thermal overload relay. And one wiring is called controlling wiring. It shows the elements of the circuit as streamlined shapes and the power and signal links in between the tools.
The value of this large current decreases as the motor reaches its rated speed. The contactor has 3 types of contacts. A2 14 18.
Gallery of Dol Starter Control Wiring Diagram
