Operating Principle Of Synchronous Generator Sets

The operating principle of synchronous generator sets is a topic that many netizens have been inquiring about. The editor will explain it for you. Synchronous generators are designed based on the principle of electromagnetic induction. They convert mechanical energy into electrical energy through the relative motion between the rotor magnetic field and the stator winding. After the DC magnetic field rotor winding is ventilated, the rotor rotates at a speed of N under external force. There is relative motion between the rotor magnetic field and the stator conductor, that is, the stator conductor cuts the magnetic line of force, generating an induced electromotive force. When the rotor rotates continuously at a constant speed, alternating current is induced in the stator coil. This is the operating principle of synchronous generators.

Establishment of the main magnetic field: The excitation winding is connected to the DC excitation current, establishing an excitation magnetic field with polarity, that is, establishing the main magnetic field. Current - carrying conductor: The three - phase symmetrical armature winding serves as a power winding and becomes the carrier of induced electromotive force or induced current. Cutting motion: The prime mover drags the rotor to rotate, inputting mechanical energy into the motor. The polarity and excitation magnetic field gradually cut along with the rotation of the rotating shaft, and the equivalent of each phase winding of the stator is that the winding conductor cuts the excitation magnetic field in the opposite direction.

Generation of alternating current: Due to the relative cutting motion between the armature winding and the main magnetic field, the armature winding will introduce a periodically changing three - phase symmetrical alternating potential in terms of magnitude and direction. AC power can be provided by wires. The root mean square of the induced voltage: E0 = 4.44 FNΦ kilowatts per phase effective value of the induced electromotive force. The frequency of the induced electromotive force is determined by the speed n of the synchronous motor and the number of pole pairs P, that is, F = PN / 60.

Understanding the operating principle of synchronous generator sets is beneficial for us to correctly use, maintain and service the units later. But in addition, there are still many detailed issues that need attention when diesel generator sets are running, which are also the knowledge that users need to understand and master. For example, the following details:

1.Check the oil pressure, water temperature, voltage, frequency, etc. of the diesel generator control module. If there is any abnormality, stop immediately for inspection. After the fault is eliminated, the diesel generator can be started again.

2.When the speed reaches 1500r/min and runs stably without load, the power supply can be turned off under load. The unit is not allowed to run continuously without load for more than half an hour or below 30% of the load. Special duty is required during the operation of the unit, and overloading is strictly prohibited.

3.Short circuit is strictly prohibited when the diesel generator is running. Negative plates will cause serious damage to the equipment. It is strictly prohibited to remove any parts of the diesel generator while the unit is running.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.