Importance of Relay Coordination in Process Industries
2020513 ensp 0183 enspDuring one instance the Clinker Hammer Crusher Motor tripped in overload due to jamming It was after 30 seconds that the control room gave the command to start the crusher again as it was observed in the past that jamming could be cleared by heavy starting torque but this time unexpectedly when the command was given to crusher motor the entire plant tripped