Diesel Generator Tech

In the process of use and operation of diesel generator, what operations should not be done? Why we shouldn't do them?Today Starlight Power generator manufacturer answers for you.  1.After genset start-up, we should not runs it with load without warming up. When start up without warming up, due to the high viscosity and poor fluidity of the oil, the oil pump is not enough to supply oil, and the friction surface of the machine is badly lubricated due to lack of oil, resulting in sharp wear, and even cylinder pulling and bush burning. Therefore, the diesel engine should run at idle speed and warm up after cooling, and then run with load when the oil temperature reaches 40℃. The genset should be started in low gear, and drive in each gear step by step for a certain mileage until the oil temperature is normal and the oil supply is sufficient. Then can run normally.   2.We should not operate genset with load under lack of oil. At this time, due to the lack of oil supply, the surfac...

Why a generator fails to produce electricity? 1. The residual magnetism of the generator core is disappeared or too weak. The residual magnetism can be lost naturally when the genset is placed too long or it can also happen from running a generator with no load for too long. However, for the new genset , the residual magnetism can be lost due to a long distance transportation vibration. Thus, it will cause the remanence voltage of generator is disappeared or less than normal remanence voltage value, namely, the remanence line voltage is less than 10V, the remanence phase voltage is less than 6V. Because the stator of synchronous generator, rotor, as well as AC exciter stator, and rotor core are usually folded by adopting 1~1.5mm thick silicon steel sheet. After excitation vibration, the residual magnetism is easy to disappear or weaken. When the residual magnetism is lost, the generator will produce no power at start-up. 2. Excitation circuit wiring error The polar...

How to maintain lubricating oil system of emergency diesel generator set? 1.Select suitable engine oil for emergency diesel generator . Generally speaking, the instruction manual of each generator set specifies the type of lubricating oil used for the unit. If there is no lubricating oil specified in the manual, the lubricating oil of similar brand can be used. Never mix different brands of engine oil. 2.During the use of emergency generator set, often check the quality of lubricating oil. Check the mechanical admixture in the engine oil when the engine is hot, and pull out the engine oil scale to check. Why should the oil level be suitable? The oil level of the diesel generator set shall be checked before starting each time to ensure that the oil level is within the specified range. 1.Low oil level will causes over wear, tile burning and cylinder pulling. 2.High oil level will cause oil leaking into cylinder, combustion chamber carbon deposit, piston...

WHAT IS A GENSET? At its simplest, a generator set or “genset” is a piece of portable equipment, consisting of an engine and an alternator/electric generator , used to provide energy. Gensets are often used in developing areas and other areas not connected to the power grid; places where power outages are frequent; and/or where an outage can cause especially significant or dangerous problems, such as deep in a mine. They can serve as the main source of energy or as a supplementary power source, perhaps during peak usage hours. HOW DOES A GENSET WORK? A genset is a combination of a prime mover, (typically an engine), and an alternator.   An engine converts the chemical energy of a fuel to mechanical energy.   That mechanical energy is used to spin the alternator rotor; converting mechanical energy to electrical energy.   An alternator is made of two main parts; a rotor and stator.   Spinning the alternator rotor through the magnetic field between the ro...

The diesel generator set shall be stored according to the steps. It includes cleaning the unit completely, keeping the unit dry and ventilated, and replacing new lubricating oil of proper quality. Completely drain the water in the water tank and conduct rust prevention treatment for the unit. Storage of automatic diesel generator when not in use in a short period of time. 1.Empty diesel oil. 2.Turn the piston of the diesel engine to the top dead center of compression. 3.Store indoors and and cover it with a cloth. 4.Don't put it in a wet place. 5.Do not put together with inflammable, explosive and corrosive articles. 6.Turn the crankshaft regularly. Storage of automatic diesel generator when not in use for a long time. 1.First, it shall be carried out according to the items not used in a short period of time. 2.Clean the dirt on surface of whole set of diesel generator. Clean the unit with compressed air. 3.Fill the generator wi...

In this article, we mainly talk about Yuchai G-drive diesel engines for 16kw to 330kw generator sets. If you want to know about Yuchai diesel generator  characteristics, please continue to read. Yuchai YC4R Series G-Drive Diesel Engine Brief Introduction Base on land generator set power, Raywin Power-train Technology Co.,Ltd., together with Yuchai Machinery Co.,Ltd., jointly develops compact engine used for generator set and ship. Power for 16 to 34 KW Gensets YC4R Model Characteristics: a. It is characterized by reliable structure, tunnel-type cylinder block, structure without cylinder liner, high strength, wide suitability, integrated parts design, and full-simulation analysis. b. Electronically-control VP pump is adopted, which ensure precise control of fuel-injection quantity, low fuel consumption, good dynamic performance and fast transient response. c. It is characterized by compact structure and light weight. d. Unilateral maintenance i...

Fuel System The fuel system of the standard genset includes: fuel tank, fuel supply pump, fuel filter, manual oil pump, fuel injection pump, fuel injection nozzle and related oil pipeline. Only fuels that meet the quality specified in the following standards shall be used. It must be kept clean during refuelling and fuel system operation. When working on the fuel system, it must be confirmed that the engine has cooled down. The splash of fuel on hot surface or electrical components may cause a fire. Fuel specification The composition of the diesel oil has a very important effect on the operation and service life and the emission components of the diesel engine. In order to obtain the specified power, fuel economy and the emission standards specified by the local environmental protection department, only clean light fuel that meets international and national standards should be used. Light diesel oil is used for fuel in high-speed diesel engines above 1000r...

Introduction of cooling system a. The genset with medium and high standard configuration adopts closed circulation liquid cooling mode with its own fan. The cooling system circulation loop basically consists of the following parts: water pump; waterway between the engine cylinder block and the cylinder head; thermostat; bypass pipe between the thermostat body and the water pump; water tank radiator; pipeline and hose; lubricating oil cooler. b. Medium and high non-standard configuration genset, such as split water tank type unit, water tank radiator should be replaced by heat exchanger, while there are expansion tank and remote tank, such as the remote tank installation position is relatively high, the transition tank should be added, to prevent the heat exchanger from being damaged due to excessive internal pressure. c. In addition, all medium and high generator sets can be separately equipped with coolant filtration device upon user’s request. The device has two funct...