Diesel Generator Tech

We often learn some tricks to avoid being deceived. When buying things like Cummins diesel generator sets, we also need to learn some relevant common sense. Now, let's follow the editor of Guangxi Dingbo Power to find out! 1.First of all, you need to determine the power of the generator set you want to choose. The power of the diesel generator should be more than 30% larger than the selected power, and a 10% reserve for the motor power should be left. If there is a high - power single - motor (non - variable frequency start), the power of the diesel generator should be three times larger than that of the motor to start the motor smoothly.   2.You should make a choice on the brand and price of the diesel generator and the generator. For the diesel generator, you should consider configurations with mature technology, low fuel consumption rate, low maintenance cost, and high reliability. For the generator, generally, the products from regular domestic manufacturers that mass - prod...

Cummins QSK60 is a V 16 cylinder engine with a 60 litre displacement. Its rated power is 1985KW. Cummins QSK60 generator sets can provide optimum performance, reliability, and versatility. They are mainly used in mining, power and shipping and other fields. What if QSK60 engine emits a lot of blue smoke from the exhaust pipe? Read on and learn how to troubleshoot the problem. Generally, blue smoke from diesel generator indicates that engine oil gets into the combustion chamber and the oil is burnt in the cylinders. It is normal for a small amount of engine oil to participate in combustion. Cummins QSK60 engine incorporates Centinel oil management system, which allows a small amount of oil to be burned. However, if a lot of blue smoke is coming out of the engine exhaust continuously, it is usually an indicator that there is something wrong with the engine. You can take the following measures to identify and fix the problem. Check oil level When the oil level of the oil pan is too hig...

The main function of an oil pressure gauge is to quickly detect changes in oil pressure and facilitate adjustment. Today, Guangxi generator manufacturer Dingbo Electric will explain the function, structure, and working principle of an oil pressure gauge, hoping to be helpful to everyone. The function of the  diesel generator  oil pressure gauge is to monitor the oil pressure in the main oil passage of the unit. It has several types such as diaphragm type, tubular spring type, and electric heating type. The first two are direct acting, with high sensitivity for pressure measurement, but inconvenient for monitoring. Electric oil pressure gauge is an instrument for non electrical testing, electrical transmission, and mechanical display. It consists of an oil pressure sensor, an oil pressure gauge, and wires for information transmission. The oil pressure sensor is installed on the cylinder block of the diesel generator and connected to the main oil passage, while the oil pressure ...

Diesel generator sets have brought countless conveniences to our modern life and enterprise production. The performance level is a classification method for the energy efficiency differences of generator sets. So, what exactly are the standards for the performance levels of diesel generator sets, and how can we distinguish the performance levels of diesel generator sets? For diesel generator sets, different performance levels have strict requirements for different frequencies, voltages, waveforms, etc. The prices of diesel generator sets of different levels also vary slightly. According to the national standard GB/T 2820.1 - 2009 "Reciprocating internal combustion engine driven alternating current generator sets - Part 1: Application, rating and performance", Article 7 stipulates four performance levels for diesel generator sets. G1 level performance: The requirements are applicable to connected loads that only need to specify their basic voltage and frequency parameters. ...

The PT pump fuel injection system of a 500 KW Cummins generator set is superior to the inline pump fuel injection system and the distribution pump fuel injection system in terms of power, economy, and environmental protection. The PT pump fuel injection system is a specialized fuel injection system for Cummins K series, N series and other models, and there is already an electronically controlled PT fuel injection system. There are three methods for adjusting the fuel outlet pressure of the PT fuel pump of a  500 KW Cummins generator set . Specifically, as follows: 1. Using a diesel generator and a dynamometer to load the diesel engine, first check the speed at the disconnection point of the governor. When the throttle valve is fully open, increase the load to the rated speed of the diesel engine and observe the outlet pressure of the fuel. When the pressure is below or above the limit value, adjust it according to the following methods: unscrew the maximum opening adjustment screw ...

The rotary oil pump of a   diesel generator   consists of components such as a casing, inner rotor, outer rotor, and pump body. The inner rotor is fixed to the rotor shaft with a key or pin, and is directly or indirectly driven by the crankshaft gear. The inner rotor drives the outer rotor to rotate together in the same direction. The inner rotor has 4 convex teeth and the outer rotor has 5 concave teeth, so that the inner and outer rotors rotate in the same direction but not synchronously. The tooth profile of the rotor is designed so that when the rotor is turned at any angle, the tooth profile lines of each tooth of the inner and outer rotors can always make point contact with each other. In this way, four working chambers are formed between the inner and outer rotors, and the volume of these four working chambers changes continuously as the rotor rotates. On one side of the oil inlet passage, due to the disengagement of the rotor, the volume gradually increases, creating a...

Do you know the reason for the burning accident caused by the axial spacing during the installation of   diesel generator   bearing shells? A certain gas turbine generator had a burning accident that was different from the usual situation. The oil blocking ring on the back of the shell had severe friction with the journal flange, causing the entire part of the oil blocking ring to melt and flow into the bearing chamber. The black gold on the back of the working area of the bearing shell also melted within 30mm of the axial direction due to high temperature, and the journal flange was bright black within 40mm of the axial direction. At the same time, due to the large vibration of the bearing pads, the bearing support end cover bolts became loose, and a 3mm gap appeared at the top of the joint surface. The unit tripped and stopped, and there was no rubbing between the rotor and stator during the coasting process. When starting the gas turbine, the rotor needs to move forward by ...

What do you think is the reason for the low backup power supply voltage of Cummins diesel generator sets? The application of Cummins diesel generator sets has brought convenience to people's lives, but there are still some problems in use. Below, the editor will share with you the reason for the low backup power supply voltage of   Cummins diesel generator sets , including the low speed of the prime mover. The process is to adjust the speed of the prime mover to the rated value. If the resistance of the excitation circuit is too high, the treatment will reduce the resistance of the field rheostat to increase the excitation current. For semiconductor excitation diesel generator sets, it is necessary to check whether the additional winding joints are disconnected or connected incorrectly. The exciter brush is not in the neutral position, which may cause handling issues or low spring pressure. Adjust the brush to the correct position, replace the brush, and adjust the spring pressure....

How to regularly check the wear of the keyways and fixing bolts related to diesel generator sets, using standard high-pressure oil pipes. During the fuel supply process of the fuel injection pump, due to the compressibility of diesel and the elasticity of the high-pressure fuel pipe, high-pressure diesel will form pressure fluctuations inside the pipe. The transmission of pressure waves inside the pipe requires a certain amount of time. To ensure consistent fuel supply interval angle, uniform fuel supply, and stable operation of the   diesel generator set , the length and diameter of the high-pressure fuel pipe are selected through calculation. Therefore, when the high-pressure oil pipe of a certain cylinder is damaged, a standard length and pipe diameter oil pipe should be replaced. In practical use, due to the lack of standard oil pipes and the use of other oil pipes instead, regardless of whether the length and diameter of the oil pipes are the same, there is a significant diffe...

  Today, we will briefly introduce the problem of fault inspection of blown fuse or disconnected thermal relay when the generator set is started. Troubleshooting steps. Check whether the fuse capacity of the generator set is appropriate, if it is too small, you can change it and try again. If the fuse continues to blow, check whether the drive belt is too tight or the load is too large, whether there is a short circuit in the circuit, and whether the motor itself is short circuited or grounded. Ground fault checking method. Use a megohmmeter to measure the insulation resistance of the motor winding to ground. When the insulation resistance is lower than 0.2MΩ, it means that the winding is seriously damp and should be dried. If the resistance is zero or the calibration lamp is close to normal brightness, the phase is grounded. Winding grounding generally occurs at the outlet of the motor, the inlet hole of the power line or the winding extension slot. For the latter ca...