Diesel Generator Tech

There are various reasons for the insulation fault discharge of the motor set, which can also cause the generator set to malfunction. Below, Starlight Power Generation Equipment will provide a detailed introduction to the reasons for the insulation failure and discharge of the   generator set engine . Firstly, during the manufacturing process of motor coils, due to technological reasons, air gaps may occur between the edge layers or between the insulation layer and the strand wire. If the voltage between the air gaps reaches the breakdown voltage of the gap during the operation of the motor, fault discharge will occur. Moreover, as the motor runs for longer, the insulation layer will further deteriorate under various stresses such as heat, electricity, machinery, and environment, ultimately leading to insulation layer cracking Peeling, loosening of slot wedges, and loss of functionality of semiconductor strip coatings; Secondly, when transient overvoltage occurs in the power system...

In the troubleshooting of diesel generator sets, Dingbo power generation equipment has mentioned that abnormal smoke or the color of smoke that does not conform to common sense is a symptom of the fault. In addition, some abnormal steam emission is also a warning for the fault. Diesel generator sets  may encounter steam from the refueling port due to factors such as oil quality and environmental temperature difference. How should we troubleshoot this issue? Next, the technical personnel from the diesel generator manufacturer will briefly explain to you based on their experience: 1. After starting the diesel engine, observe the exhaust smoke situation of the exhaust pipe. After 5 minutes, the exhaust smoke turns light gray, and a small amount of white vapor emerges at the fuel filler, which is within the normal range. 2. Check the oil quality of the engine oil to see if there is any deterioration. 3. After stopping the machine, disassemble the fuel injector and conduct an oil pressu...

  Bench grinder is mainly composed of grinding wheel, motor and machine body in the basic bench work equipment of Jichai diesel generator set maintenance. According to different shapes, grinders are divided into bench grinders and vertical grinders. The Bench grinder is mainly used for Jichai diesel generator set to grind various cutters and deburr small parts. When using the Bench grinder of Jichai diesel generator set, the safety operation regulations must be strictly followed. When using the Bench grinder of  JICHAI diesel generator set , the rotation direction of the grinding wheel must be consistent with the rotation direction indicator, so that the grinding debris can fly down from the grinding wheel. After the Jichai diesel generator set is started, the grinding wheel speed should be stable before grinding. When grinding with a Bench grinder, it is necessary to prevent the cutting tool or grinding parts from causing severe impact or excessive pressure on the grinding wh...

  The current diesel generator regulator can comprehensively reflect a variety of control signals, including voltage deviation signals, for excitation regulation, so it is called excitation regulator. Obviously, the excitation regulator includes the function of voltage regulator. The semiconductor excitation regulator of diesel generator is briefly introduced below. Excitation control system: the excitation system is an important part of the AC synchronous  diesel generator , which controls the voltage and reactive power of the synchronous diesel generator. In addition, the speed governing system controls the speed (frequency) and active power of the prime mover and diesel generator. The two are the main control systems of diesel generators. Excitation control system is a feedback control system composed of synchronous diesel generator and its excitation system. The excitation regulator is the main part of the excitation control system. Generally, it senses the change of diese...

The weather is gradually entering the summer, and the electricity consumption will also gradually increase. According to the policies of previous years, it is very likely that power outages or power rationing will occur again. Starlight Power reminds the majority of business friends that if you have not been equipped with diesel generator sets, now is the time to consider buying a diesel generator set in case of emergency, because no matter what industry, stable power supply is the key to the survival of the enterprise, and configuring a diesel generator as a backup power supply can avoid this dilemma, even if the market Power outages may occur in the power grid. Whether it is a short-term or long-term power outage, diesel generators will provide a stable and reliable power supply, thus ensuring the normal operation of the enterprise. Buy diesel generators, choose Jiangsu Starlight Electricity Equipments Co.,Ltd., no matter what industry you are in, Jiangsu Starlight ...

  It has been known from the working process of the diesel engine of the generator set that the diesel fuel is injected into the cylinder and mixed with the hot air, and then ignites and burns to generate power. Therefore, the horsepower of the diesel engine is naturally related to the amount of air and the amount of diesel it can burn. In this article, Starlight Power Generation Equipment will introduce it in detail. At high altitudes, due to the decrease in atmospheric pressure, the air density decreases, and the weight of the air drawn into the cylinders of the  generator set  is correspondingly reduced, which limits the amount of diesel that can be burned, and the horsepower decreases. For the same reason, the high temperature and humidity of the air will also reduce the horsepower of the diesel engine of the generator set. Therefore, the use of diesel engines in different regions, or under different atmospheric conditions in the same region, should consider this...

 

What is the function of rotating rectifier of diesel generator set?   Rotating rectifier is a device which rotates coaxially with AC exciter. Its main function is to convert the three-phase AC excitation current output by the armature of the AC exciter into the DC current through the diode on the rectifier, supply the rotor winding as the power supply for the excitation current. It is because of the application of rotating rectifier that the AC synchronous generator gets rid of the binding of brush, no longer has the trouble of frequent maintenance and replacement of parts, and also makes the application of the AC synchronous generator more extensive. Some rotating rectifiers of AC synchronous generators are installed on the outside of the AC exciter and fixed on the shaft with screws for easy installation and maintenance. Some rotating rectifiers of generators are installed on the inner side of the rear end cover and directly fixed on the bolts protruding from the armature...

1.Wear of piston ring groove   The piston ring moves in the ring groove, so that the piston ring groove is subject to the maximum wear in the height direction, so that it becomes a ladder or trapezoid. The main reason of wear is the unit pressure of piston ring on the groove wall and the influence of high temperature. The wear rate of ring groove depends on the roughness of piston ring plane and the structure of piston to a great extent.   Solutions: When the wear of the piston ring groove is widened and the side clearance of the piston ring is greater than the specified allowable value, the piston ring groove can be turned on the lathe according to the enlarged piston ring.   2.Wear of piston pin seat hole   The wear of piston pin seat hole is generally smaller than that of piston ring groove. The wear rate depends on the roughness of piston pin hole and the fit between piston pin and pin hole. Due to the action of gas pressure and inertia force, the...

The ventilation environment of a diesel generator se t is an important condition to ensure its working environment temperature. However, in order to ensure good ventilation, dustproof measures must be taken, which requires   certain requirements on ventilation. So what are the ventilation requirements of the diesel generating set?   1. Ventilation requirements for diesel generator set Space The location of the generator room should be as far away from the residential area as possible to reduce the impact of the noise and emissions of the unit on the residents. The generator room should be built on an open site as far as possible to facilitate the access and ventilation and heat dissipation of the unit and accessories. The space of the machine room should fully consider the volume of the unit and accessories to ensure that the unit and accessories have sufficient installation space.   Dust-proof design   Good ventilation, dust-proof performance will in...

Buying A Single Generator Vs. Paralleling If your power needs are large enough, you may wonder whether it’s better to go with a single, huge diesel generator, or split the burden between two or more smaller generators. For example, instead of a 1200kW generator , you could install three 400kW generators. This is called paralleling, and it can be a great option in the right circumstances. Here’s why: 1. Greater flexibility. It’s very likely the reason you’re buying a generator at all is the additional reliability, a hedge against an interrupted power supply causing a slowdown or halt to your business’s operations. With multiple generators, you don’t have to worry if one has to be shut down for maintenance. You simply shift the burden to the others and keep right on working.   With just one generator, if it has to stop, so do you.   2. Can be more cost-effective. Obviously the economics will vary widely depending on brands, new vs. used generators, prices in your geo...

Diesel generator is a diesel engine that drives the generator to convert the energy of the diesel into electrical energy. The gasoline generator is a gasoline engine that drives the generator to convert the energy of the gasoline into electrical energy. The following is a detailed introduction to the difference between the two. Working principle of diesel generator In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high pressure atomized diesel fuel injected from the injector. Under the upward extrusion of the piston, the volume is reduced and the temperature is rapidly increased to reach the ignition point of the diesel. The diesel is ignited, the mixed gas burns violently, the volume expands rapidly, and the piston is pushed down, which is called work. Each cylinder performs work in a certain order, and the thrust acting on the piston passes through the connecting rod to become a force that pushes the crankshaft to rotat...

Diesel generator set works at poor diesel oil In this conditions, the oil supply of each friction pair surface will be poor due to poor oil supply, it will result in abnormal wear or burn. Therefore, we should ensure enough diesel oil before start up and during the operation of the unit. After cold start, step on the accelerator sharply If the accelerator is slammed, the speed of the diesel engine will increase sharply, which will cause some friction surfaces on the engine to wear violently due to dry friction. Besides, the acceptance force of piston, connecting rod and crankshaft changes greatly, which will cause severe impact and easily damages the parts. Emergency stop the unit with load or suddenly stop after load removal After the diesel generator flameout, the circulation of cooling water stops, the cooling capacity decreases sharply, and the heated parts lose cooling, which easily causes overheating of cylinder head, cylinder sleeve, cylinder block and ot...

Why does my diesel generator set often overheat? What is the reason? This is the common problem that users encounter when they use their diesel generator . No matter what brand of the generator is, the reasons of overheating is almost the same. If you are interested, please continue to read this article. 1. The diesel generator does not operate in accordance with the prescribed technical conditions, such as too high stator voltage, increased iron loss, too large load current, increased copper loss in stator winding, too low frequency, which will slow down the speed of cooling fan and affect the heat dissipation of generator, and the power factor is too low. It will increase the rotor excitation current and then cause the rotor to heat. Users should check that the monitoring instrument's instructions are correct. If the monitor is abnormal, must carry on the necessary adjustment and the processing, causes the generator to operate according to the stipulated technical co...