Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to high filed circuit resistance. over load. zero or very low voltage supply. all of these. high filed circuit resistance. over load. zero or very low voltage supply. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will not start automatically. develop very low starting torque. get damaged. start automatically without trouble. not start automatically. develop very low starting torque. get damaged. start automatically without trouble. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Motor 3 point starter is used to all of above. provide protection against Low-Voltage. provide overload protection. limit the starting current to a safer value. all of above. provide protection against Low-Voltage. provide overload protection. limit the starting current to a safer value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will draw a starting current many times its rated full load current. all of above. damage the armature and commutator. provide execessive voltage drop in line. draw a starting current many times its rated full load current. all of above. damage the armature and commutator. provide execessive voltage drop in line. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the starting torque becomes low. the starting current will be enormously high. the motor may not start. the motor may run away. the starting torque becomes low. the starting current will be enormously high. the motor may not start. the motor may run away. ANSWER DOWNLOAD EXAMIANS APP