DOL Starter Power And Control Diagram

DOL Starter Power And Control Diagram

 

DOL Starter Power And Control Diagram

DOL -Direct online starter

Components used in For DOL starter

1.MPCB for ON off and Motor Protection

2.Contector  2 No Auxiliary contact 

3.OLR Over load relay No+ NC 

4.2 pole control MCB

5. Indication Lamp

-1.Green For OFF indication 

-2 Red For Motor Run indication 

-3 yellow for Motor trip Indication

6. Start And Stop push button 

Advantages OF DOL Starter

1.simple type Starter

2. Very Low Maintenance cost

3.Wiring Not complicated

4.Easily Moveable One Location to another Location 

5. Easily troubleshooting

Disadvantage OF DOL Starter

1.Starting inrush current Very High 6-8 time of rated Motor Current

2.Dol starter Use Only Up to 7.5kw,5HP Motor Because of this starter starting Inrush current can not to be control

3.Dol Starter High Thermal Stress On Motor so That's why Reduce Motors Life

4.High Starting current During Motor Start time so supply voltage Deep Create