Causes and Troubleshooting of Common Faults of Diesel Electric System in Diesel Generator Sets
Common causes of diesel engine electrical system faults in diesel generator sets are as follows: Fault features Possible Causes Method of exclusion Starter motor does not rotate (1) Poor connection of the connection wire (2) Poor contact of electromagnetic switch contacts (3) Bad brush contact (4) The starter motor itself is short-circuited (5) The battery is insufficiently charged or the capacity is too small Clean and tighten the connector Check the switch contacts and polish with sand Clean the commutator surface or replace brushes Find the short-circuit site after repair, replace the starter motor if necessary To charge the battery or increase the battery in parallel, necessary Replace the battery Starter motor idling without power (1) Bad contact or disconnection of brushes and terminals (2) Wear of bearing sleeve (3) Partial short circuit of field winding or armature winding (4) electromagnetic switch contacts singeing, poor contact (5) The battery is insufficiently charged or the capacity is too small, and the line voltage of the starter motor is too low Clean the surface, re-weld or replace Renewed Find out the short-circuit site repair Check the switch contacts and polish with sand Charge the battery, replace the battery if necessary, increase the conductivity Line section or shortened wire length Starter motor gear and flywheel teeth Top gear or starter motor gear Can't retreat (1) The starter is not parallel to the center of the flywheel ring gear (2) Electromagnetic switch contacts burned together Reinstall the starter to eliminate non-parallelism Check switch contacts, leveling and sanding The start button is released and the starter motor continues to run (2) The electromagnetic switch contacts and connecting screws are burned (3) Starter relay burned readjust Overhaul readjust Alternator cannot be charged (1) AC generator transmission tape looseness (2) Poor contact of charging circuit, ground circuit or battery connector (3) Failure of the rotor (magnetic field coil) Adjust the tape to the right tension Check all wires and connectors, wipe all connectors clean and tighten. Replace leads and connectors as necessary Replace the rotor The charging generator voltage is too low or The charger is not charging properly (1) Transmission tape looseness (2) Poor contact of charging circuit, ground circuit or battery connector (3) The alternator voltage regulator is damaged (4) Failure of the rotor (field coil) (5) Rectifier diode burnout Adjust the tape to the right tension Check all wires and connectors, wipe all connectors clean and tighten. Replace leads and connectors as necessary Replace voltage regulator Replace the rotor Replace rectifier diode Charge generator voltage too high (1) Bad contact on alternator or alternator voltage regulator (2) The alternator voltage regulator is faulty Tighten all connections on alternator or voltage regulator Replace voltage regulator Generator has abnormal sound (1) Wear or damage of transmission tape (2) loose transmission tape (3) The transmission tape and the pulley wheel are not aligned with each other (4) Generator bearing wear (5) Armature or rotor shaft bending (6) Short circuit of generator rectifier Replace the tape Adjust the tape to the right tension Adjustment aligns center of drive tape with center of tape wheel Replace generator Replace generator Replace generator Related reading : Shanghai Ito Power Co., Ltd. Main : Ito Gasoline Generator , Ito Diesel Generator , Ito Small Pump , Ito Digital Generator , Ito Electric Welding Machine Sand 3D Printer,High-Performance Sand 3D Printing,Sand 3D Printing System,Sand 3D Printing Guangdong Fenghua Zhuoli Technology Co., Ltd , https://www.fhzlcasting.com
If the diesel engine electrical system of the diesel generating set encounters the above faults, it can be processed according to the above method. If you need the guidance of professional technicians of ITOC, please call the ITOCHU Hotline: Â