Diesel Generator Tech

The Dingbo series Volvo VOLVO diesel generator set can output its rated power, with a rated voltage of 400 volts and a rated frequency of 50 (60) hertz of alternating current. It is used in factories, mines, construction sites, rural areas, and small towns as fixed or mobile power stations for power and lighting purposes. 1. Main performance of  Volvo diesel generator sets   (1) The Volvo diesel generator set has a static voltage adjustment rate of ≤ 5% under three-phase symmetrical load at 0-100% rated power and power factor COS=0.8-1. It can be adjusted within the range of 95% -105% rated voltage when unloaded.   (2) When the Volvo diesel generator set operates under three-phase symmetrical load conditions, if each current does not exceed the rated value and the difference in three-phase current does not exceed 20%, the set can operate for a long time.   (3) When the output of a Volvo diesel generator set undergoes a sudden or gradual change from 0 to 100% rated po...

  Long term full load operation of diesel generators can not only improve their performance, identify safety hazards, but also avoid major communication accidents. The relevant precautions include the following four aspects: Preparation before startup. Before turning on or off, be sure to check whether the cooling water or antifreeze in the  diesel engine  water tank meets the requirements, if it is not fully filled. Pull out the oil dipstick and check for any missing lubricating oil. If the specified "static" scale line is missing, carefully check the relevant parts for any potential faults. If any faults are found, promptly troubleshoot and start the machine.   It is strictly prohibited to start the diesel engine under load. Before starting a diesel engine, it should be noted that the output air switch of the generator must be in the closed state. After the ordinary diesel generator set is started, after 3-5 minutes of idling (about 700 rpm), the winter temperature...

The requirements for materials, cleaning, and nameplates of diesel generators are as follows:   Material requirements for  diesel generators :   1. The performance of all materials should be suitable for the engineering and operational requirements of the project, and suitable for the conditions of operation, transportation, and installation locations. Maximize the use of materials that are serialized, standardized, and commercialized in the market.   2. Requirements for materials provided by third parties: The installation and use of equipment provided by third parties should be consistent with the supplier's instructions for the same type of equipment.   3. Consistency requirements for materials: Equipment and materials in the same supply contract should have the same type and functional structure, such as diodes, thyristors, switches, contactors, signal lights, operating mechanisms, auxiliary relays, instruments, etc.   Cleaning requirements for diesel g...

The previous article has already introduced the structural requirements of the diesel engine, fuel system, and lubricating oil system for diesel generator sets. In this article, the professional diesel generator manufacturer - Dingbo Electric will continue to introduce the structural requirements of the starting system, cooling system, intake system, heating system, noise and shock absorption system.   1. Start the system   1) The generator should be able to start and deliver electricity within 30 degrees after a power outage in the city. The starting system equipped with an engine should be able to start 6 times, with each start lasting 6 seconds and an interval of 6 seconds. Each generator set should be equipped with a starting system.   2) An automatic  diesel engine  starting device should be installed, and the success rate of starting should not be less than 99%. When the engine runs without load within the predetermined time, it should automatically stop. ...

The structure of diesel generator sets includes: diesel engine system, fuel system, lubricating oil system, starting system, cooling system, intake system, heating system, noise and shock absorption system, etc. Do you know what are the requirements?   Fixed or mobile diesel generators should use high-performance equipment and cannot achieve the specified output power by increasing the speed. The diesel generator set should be modular and adopt fast self starting technology. The engine design, equipment, and control should comply with the specifications of heavy-duty fixed, continuous full/heavy load process application units, without any water, oil, or air leaks.   The fuel consumption of  diesel generator set  under rated operating conditions shall not exceed 250G/(KWH), and the electricity consumption of generator set shall not exceed 4G/(KWH). The diesel generator set should be able to use domestically produced fuel and engine oil without affecting the output pow...

A diesel generator set is a power supply equipment that is powered by a diesel engine and drives an AC synchronous generator to generate electricity. In order to meet the higher requirements of modern society for diesel generator sets, what are the performance levels and working conditions of   diesel generator sets ? This article is shared by Dingbo Electric as follows. Four performance levels of diesel generator sets 1. G1 level performance: suitable for connected loads that only require specifying basic voltage and frequency parameters. Mainly used for general purposes, such as lighting and other simple electrical loads. 2. G2 level performance: suitable for loads with the same voltage characteristics as public power systems. When the load changes, temporary but allowable voltage and frequency deviations may occur. For example, lighting systems, fans, and water pumps. 3. G3 level performance: suitable for connecting devices with strict requirements for frequency, voltage, and wa...

When purchasing a diesel generator set, one should understand the overall structure of the diesel generator set in order to choose a more suitable diesel generator set and avoid the trouble and futile work caused by purchasing errors. As is well known, diesel engines can output power during operation. In addition to the combustion chamber and crank connecting rod mechanism directly converting the thermal energy of fuel into mechanical energy, corresponding mechanisms and systems must also be in place to ensure that these mechanisms and systems are interrelated and coordinated.   Diesel engines   of different types and purposes have different mechanisms and systems, but their functions are basically the same. Diesel engines are mainly composed of body components and crank connecting rod mechanisms, valve distribution mechanisms and intake and exhaust systems, fuel supply and speed control systems, lubrication systems, cooling systems, etc., as well as starting devices and other...

The air leakage in the intake system of the diesel engine of the 150kw Cummins generator will cause air to directly enter the diesel engine cylinder for combustion, without the need for filtration. Dust and mechanical impurities in the air can cause early wear of parts such as cylinder liners, pistons, and piston rings, leading to a decrease in diesel engine power and an increase in fuel consumption. The simple method to check for air leakage in the intake system of a diesel engine is: 1. Remove the air filter cover, accelerate slightly, and let the  diesel engine  run at medium speed. At this point, block the intake port to prevent air from entering the cylinder through the intake port of the filter, and observe the operation of the diesel engine. If the diesel engine speed drops rapidly within a few seconds, the exhaust pipe emits black smoke, and the engine automatically stalls, it indicates that there is no leakage in the intake system; If the speed of the diesel generator...

Recently, users have reported that the turbocharger of a 150 KW Cummins generator set has insufficient boost pressure during operation, mainly manifested as insufficient diesel power and black smoke from the exhaust. According to the analysis of professional technical engineers at Dingbo, the main reasons for the decrease in turbocharger boost pressure are as follows: 1. The increase in intake resistance is due to the presence of dirt in the air filter, intercooler, and intake volute; 2. The compressor speed has decreased due to carbon deposits in the turbine, increased exhaust resistance, bearing wear, and scratches and collisions between the rotor and the casing; 3. An increase in altitude. Troubleshooting: When the boost pressure of the  Cummins generator set  booster is insufficient, the following maintenance should be emphasized: 1. Clean the air filter and intake duct. After the air filter or intake channel is blocked, the intake resistance of the compressor increas...

The so-called turbocharging is a technology that compresses air before it is supplied to the cylinder to increase air density and intake volume. The turbocharger is the component that implements the technology of boosting. The purpose of a turbocharger is to increase inflation, increase power, improve economy, improve emissions, and improve high-altitude performance. Simply put, it is the use of exhaust gas turbochargers to increase the inflation density, greatly improving the unit mass power ratio of diesel generator sets, and thus widely used in   diesel engines . Exhaust gas turbocharger is a turbocharger that uses the energy of exhaust gas emitted by the engine as a power source to drive. It is actually an air compressor that increases the intake volume by compressing air. It uses the inertia impulse of exhaust gas emitted by the engine to drive the turbine inside the turbine chamber, which in turn drives a coaxial impeller. The impeller is pressurized by air to enter the cylin...