It is normal for the generator to generate heat during operation.
The automobile generator is the main source of power for the car. Its function is to power all electrical equipment (except the starter) and to charge the battery when the engine is running normally.
Based on the three-phase stator winding of an ordinary alternator, the number of winding turns is increased and the terminals are taken out, and a set of three-phase rectifier bridge is added. At low speed, the original winding and the additional winding are output in series, while at higher speed, only the original three-phase winding is output.
Detailed information:
1. Principle of gasoline generator:
The gasoline engine drives the generator to operate, converting gasoline energy into electrical energyeu.
In the cylinder of the gasoline engine, the mixed gas burns violently, expands rapidly in volume, and pushes the piston down to do work.
Whether it is a diesel generator or a gasoline generator, each cylinder performs work in a certain order. The thrust acting on the piston becomes the force that causes the crankshaft to rotate through the connecting rod, thus driving the engine. crankshaft to rotate. By installing the brushless synchronous alternator coaxially to the crankshaft of the electric machine, the rotation of the electric machine can be used to drive the generator rotor. Using the principle of "electromagnetic induction", the generator will produce induced electromotive force. and a current can be generated through the closed charging loop.
2. Precautions for use:
① Frequently clean the scale and dust on the appearance of the generator and keep it cleanand well ventilated.
② Frequently check the tightening condition of the generator-related fasteners and tighten the screws in time.
③The tension of the transmission belt must be appropriate. If it is too loose, it will slip easily and result in insufficient power production; if it is too tight, it will easily damage the belt and generator bearings.
④When installing the battery, be careful not to install it incorrectly. Usually, install the positive wire first and not the ground wire, otherwise the diode will burn out easily.
⑤ When using an integrated circuit regulator, the ignition switch should be turned off immediately when the engine is not running.
⑥ It is never allowed to use the “scraping” method to test whether to produce electricity.
Baidu Encyclopedia - Car Generator
Baidu Encyclopedia - Generator
What are the reasonsfrom the excessively high exhaust temperature of the turbine generator?
The main reasons why the temperature of the diesel generator set is too high are:
1. The diesel engine uses hard water for a long time and a large amount of scale is formed. into the water tank and waterways, resulting in poor heat dissipation.
2. There are too many impurities deposited in the water channels between the body and the cylinder head, which blocks water circulation and results in poor heat dissipation.
3. Seriously burns engine oil, causing excessive carbon deposits and poor heat dissipation.
4. Improper operation and use. When starting the diesel engine, you should first use a small or medium throttle to warm up for a while. Do not suddenly increase the throttle or increase speed suddenly.nt the load, otherwise this will happen. The diesel engine runs poorly and the temperature skyrockets. Or, long-term overload operation of the diesel engine will also cause the diesel engine to become too hot.
5. Delaying fuel delivery too late will cause the diesel engine to overheat.
6. Put it into operation at full load immediately after repair, causing overheating or jamming of moving parts due to too little mounting clearance.
7. Insufficient cooling water causes the diesel engine to overheat.
If the temperature of the diesel engine of the diesel generator set is too high, it will cause reduced matching clearance, resistance and poor lubrication of moving parts in severe cases. cause cylinder pulling and shaft holding accidents. Therefore, when the temperature of the diesel generator set is too high,it must be repaired in time.
1. Unit load size. It has an impact, but not absolutely. The greater the load, the more steam must be condensed and heat exchanged. If the cooling effect is not very good, the exhaust pressure will increase and the temperature will rise.
2. The heat exchange effect of the condenser: If there is scale or the air in the water chamber on the cooling water side of the condenser is not exhausted, the cooling effect will be affected. Poor cooling effect --- high exhaust temperature.
3. The circulating water temperature is abnormal. Of course, if the temperature is high, the cooling effect is poor. The exhaust gas temperature will increase.
4. The air extractor is abnormal. When the condenser is operating, there is still non-condensable spent steam that must be continually pumped out. If the condenser operates abnormally,the spent steam cannot be extracted normally, the vacuum will not be maintained, and the exhaust pressure and temperature will increase. Generally, as the exhaust gas pressure increases, the exhaust gas temperature also increases.