Poona Shims Electrical Technician Interview Questions and Answers for Experienced

DOL starter is a type of motor starter used to start and stop the motor directly on line.

• DOL stands for Direct-On-Line

• It is the simplest and most economical type of motor starter

• It consists of a contactor and an overload relay

• It is used for small to medium-sized motors

• Example: A DOL starter is used to start a water pump motor

A dol starter diagram is a simple electrical circuit used to start and stop motors.

• DOL stands for Direct-On-Line

• It consists of a contactor, overload relay, start and stop push buttons, and power supply

• When the start button is pressed, the contactor closes and the motor starts

• When the stop button is pressed, the contactor opens and the motor stops

• Overload relay protects the motor from overheating and damage

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

• Ohm's law is a fundamental law of electrical engineering

• It states that the current through a conductor is directly proportional to the voltage across it

• The proportionality constant is the resistance of the conductor

• Ohm's law is often used to calculate the current, voltage, or resistance...read more