Direct Online Circuit Diagram Pdf. Typical circuit diagram of direct on line starter a main circuit b control circuit for momentary contact control c control circuit for maintained contact control typical circuit diagram of forward reverse starter electrical interlocking main circuit l1 l s0 s1 k1 k1 n l nsk 6970c f3 53 54 a1 a2 21 22 a1 22 k2 53 s2 s2 s1 f2 96 95 k2 k1. All other control and power connections have to be made by the installer.
Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram. The dol starter comprises an mccb or circuit breaker contactor and an overload relay for protection. All other control and power connections have to be made by the installer.
In this article we will discuss dol starter direct online starter working principle and construction dol starter diagram control diagram power circuit and wiring single 3 phase starter direct on line is the simplest and cheapest method used for starting three phase motor.
A direct online starter consists of two buttons a green button for starting and a red for stopping purpose of the motor. Typical circuit diagram of direct on line starter a main circuit b control circuit for momentary contact control c control circuit for maintained contact control typical circuit diagram of forward reverse starter electrical interlocking main circuit l1 l s0 s1 k1 k1 n l nsk 6970c f3 53 54 a1 a2 21 22 a1 22 k2 53 s2 s2 s1 f2 96 95 k2 k1. A direct online starter consists of two buttons a green button for starting and a red for stopping purpose of the motor. 13 17 with a flying lead to be connected to overload terminal 95.
