On July 25, 2020, an University of Technology purchased one set of 1000KVA Cummins diesel generator set from Starlight Power factory. It uses for emergency power supply system.
This University of Technology was founded in 1920, the University of technology is affiliated to the Department of industry and information technology. In 1951, it was identified as one of the two model universities to learn from foreign higher education mode. In 1954, it entered the ranks of the first batch of national key construction universities, and was once known as the cradle of engineers. Cummins is the largest foreign investor in China. The engine of 1000kva emergency generator purchased by the customer is powered by Chongqing Cummins engine (Sino US joint venture). It has the advantages of small size, light weight, low fuel consumption, strong power, reliable operation, convenient supply and maintenance of accessories. Among similar products, it has better performance, better quality and more guaranteed service, so it is deeply loved by customers. 1000kva emergency diesel generator technical specifications Genset prime power: 800kw/1000kva Standby power: 880kw/1100kva Diesel engine: Chongqing Cummins KTA38-G5 (turbocharged, 12 cylinders, in line, 4 stroke) Alternator: Starlight TFW2-800-4A ( brushless and self-exciting) Control panel: SmartGen 6110 Rated voltage 230/400V, 1500rpm, 50Hz, 3 phase 4 wire, power factor 0.8lag Accessories: 1000L external daily fuel tank, 2 pcs 200AH battery, Jacket heater, automatic battery charger, one set of maintenance tools kit etc. Features of Cummins KTA38 series diesel engine Aftercooler Large capacity after cooler results in cooler, denser intake air for more efficient combustion and reduced internal stresses for longer life. Fuel System Cummins exclusive lowpressure PT™ system with wear compensating pump and integral dual flyweight governor. Camshaft actuated fuel injectors give accurate metering and timing. Fuel lines are internal drilled passages in cylinder heads. Spin-on fuel filter. Cooling System Gear driven centrifugal water pump. Large volume water passages provide even flow of coolant around cylinder liners, valves and injectors. Bypass thermostats regulate coolant temperature. Spin-on corrosion resistors check rust and corrosion, control acidity and remove Impurities. Turbocharger Cummins Turbo Technologies (CTT) exhaust gas driven turbocharger mounted at top of engine provides more power, improved fuel economy, altitude compensation, and lower smoke and noise levels. Cylinder Block Alloy cast iron with removable wet liners. Cross bolt support to main bearing cap provides extra strength and stability. Service and Support G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network. The Cummins diesel generator purchased from Starlight factory can enjoy free maintenance service during quality warranty time. The KTA38-Series benefits from years of technical development and improvement to bring customers an innovative and future proof diesel engine that keeps pace with ever changing generator set requirements. Recognized globally for its performance under even the most severe climatic conditions, the KTA38-Series is widely acknowledged as the most robust and cost-effective diesel engine in its power range for the generator set market. Starlight Power factory set up in 1974, have focused on high quality generator for more than 43 years and have more than 60 sales service centers in China. Starlight generator set has been sold all over the world and got good feedback from customers. Starlight Cummins diesel generator power range is from 25kva to 2000kva( oepn type, soundproof type, container type, trailer type for your choice), welcome to contact us by email [email protected] or call us +8613481024441 ( same as WeChat number).
0 评论
Recently, Starlight Power exported one unit 500KW Cummins silent containerized diesel generator set to Saudi Arabia, the customer has received it. It is our honor to cooperate with the customer, thanks for the cooperation! This 500KW diesel generator set is configured as follows: Diesel engine: Cummins KTAA19-G6A Manufacturer: Chongqing Cummins Engine Company Ltd. Type: 4 stroke, in line, turbocharged & air to air intercooled Displacement: 19L BoreXStroke: 159X159mm Compress Ratio: 13.9:1 No. of Cylinder: 6 Fuel System: Cummins PT Frequency/speed: 60Hz/1800rpm Standard: BS-5514 and DIN-6271 standards are based on ISO-3046. Alternator: Shanghai Kepu TFW2-500-4A Manufacturer: Shanghai Kepu Generator Equipment Co., Ltd Alternator capacity: 625KVA Protection level: IP22 Insulation class: H Efficiency: above 95% Bearing: Single bearing Type: Brushless and self-exciting Voltage regulation: AVR Controller: SmartGen 6110 Manufacturer: SmartGen(Zhengzhou) Technology Co., Ltd. Performance characteristics of Starlight silent containerzied diesel generator set 1.The noise reduction standard conforms to ISO standard. 2.Good ventilation system and thermal radiation prevention measures ensure that the unit always works at the appropriate ambient temperature. 3.Super large capacity fuel tank for 8 hours of continuous load operation 4.The use of special noise reducing and silencing materials can greatly suppress the mechanical noise. 5.Efficient damping measures to ensure stable operation of diesel generator set. 6.Special observation window and emergency stop button are set at the appropriate position of silencing shell to facilitate operation and observation of unit operation. 7.Rain proof and silent set for outdoor use. Soundproof box structure 1.Corrosion protection Box made of cold rolled steel plate; Steel door locks, hinges and fasteners; Zinc phosphate and polyester powder coating treatment, durable appearance as new. 2.Good maintenance contact Large size door, air resistance rod; Panel lamp and maintenance lamp; The oil pipeline leads to the outside of the compartment. 3.Superior security The built-in muffler independent of the equipment makes the operation safer and the appearance more beautiful; The sound insulation observation window is easy to observe the operation condition of generator set outside the chamber; External emergency stop button; High efficiency, flame retardant and sound-absorbing materials are pasted inside the compartment. 4.Convenient transportation Skeleton structure, modular design; High strength sound box chassis; The upper part of the silent compartment is provided with lifting ears. 5.Good acoustic effect The noise level of generator set is 75dBA at 7m. Thanks to the customer's recognition of our products, Starlight will continue to provide customers with quality-assured diesel generator sets. If you are interested in our Cummins generator set, contact us by email: [email protected] When buying diesel generator set, some people only ask cheap price, do not consider quality, but after used the cheap generator set, it can not work normally or not a long service life. Some people consider good quality first, then price. As long as price is reasonable, they will accept. So the unit can work for them a long time.
Therefore, it is very important to buy a genuine diesel generator set. Today Starlight Power manufacturer mainly shares how to buy a genuine diesel generator set. 1.Diesel generator set manufacturer A good manufacturer of power generators should guide customer to select a suitable product according to customer's requirement, try not to let customers spend more money and provide a good after-sales service. Starlight Power is such a manufacturer. 2.Diesel engine, alternator, control panel brand The main important parts of genset is diesel engine, alternator, control panel. In order to ensure the genset work normally and good performance, we should use good quality and original engine, alternator and control panel brand. The good engine brand: Cummins, Perkins, Volvo, Deutz, Yuchai, Shangchai, Weichai. Alternator: Stamford, Marathon, Leroy Somer, ENGGA, Shanghai Kepu, as well as our own brand Starlight. Control panel: SmartGen, Deep Sea Starlight Power is the OEM supplier of all above brands for diesel generator set, we can provide OEM certificate. And we only do high quality product. In addition, we also need to pay attention to other items. 1.KW and KVA. We should confirm clearly about the power unit of diesel generator we need. KW is not same as KVA. In fact, KVA is the apparent power and kW is the effective power, 1KW=1.25KVA. 2.Rated power and standby power. In fact, standby power = 1.1 x rated power. Moreover, the backup power can only be used for one hour in 12 hours of continuous operation. Some customers need rated power generator set, but to let price lower than other suppliers, some suppliers sell standby power generator set to customers, however, the power of genset is enough to supply power. After a long-term use, the service life of the unit is reduced, the maintenance is frequent and the usage fee is high. 3.Brand new and used. Some supplier sell second diesel generator to customers as a brand-new one, and some of the renovated diesel engines are equipped with brand-new generators and control cabinets, so that ordinary non professional users can't know whether it is a new one or an old one. 4.Brand name and country of origin. We should also ask the brand of diesel engine or generator, and country of origin. Such as Cummins in the United States, Volvo in Sweden and Stamford in Britain. In fact, it is impossible for any diesel generator set to be manufactured by a same enterprise. Customers should fully understand the manufacturer and brand of diesel engine, generator and control cabinet of the generator set, so as to comprehensively evaluate the grade of the generator set. 5.Protection function. All diesel generator set is required to equip with protection function. If not, it is not qualified. 6.Random accessories. We should ask random accessories, such as silencer, battery, battery charger, shock pad, user manual, operation & repair manual etc. All these accessories are important. 7.Performance and quality must meet the requirements of relevant standards. 8.Importance of utility switch. The utility switch is divided into two types: manual and automatic (ATS). If your diesel generator is used as a standby power supply, the mains switch must be installed at the power input point. It is strictly forbidden to input the self provided power supply to the load by means of temporary wiring and memory operation. Once the self provided power supply is connected to the grid without authorization (referred to as reverse power transmission), it will cause serious consequences of casualties and equipment damage. Whether the switch is installed correctly or not must be checked and approved by the local power supply department before it can be put into use. The above is what we share today, hope it is helpful for you when buying diesel generator set. Starlight Power are as one of leading diesel generators manufacturer in China, set up in 1974, focused on high quality product with reasonable price. We have exported product to Ethiopia, Nigeria, Sri Lanka, Thailand, Philippines, Saudi Arabia etc. Our diesel generators power range is from 25kva to 2500kva, if you have purchase plan, welcome to contact us by email [email protected] or call us by phone +8613481024441. We are a leading manufacturer of diesel generator set in China, our factory was set up in 1974. We are OEM supplier of Cummins engine for generator set. Starlight Cummins series diesel generators can be made from 20kw to 1500kw. Today we tell you why we should choose Cummins diesel generators.
1.Performance characteristics of Cummins diesel generator set Cummins diesel generator set cylinder design is solid and durable, vibration is small, noise is small; in-line six cylinder four stroke, smooth operation, high efficiency. Replacement of wet cylinder liner, long service life and convenient maintenance. Two cylinders and one cover, 4 valves for each cylinder, sufficient air intake, forced water cooling, small heat radiation and excellent performance. 2.Fuel system of Cummins diesel generators Cummins patented PT fuel system has a unique overspeed protection device; low pressure oil pipeline, less pipeline, low failure rate, high reliability; high pressure injection, full combustion. Equipped with fuel supply and return check valve, safe and reliable use. 3.Air intake system of Cummins generator set Cummins diesel generator is equipped with dry air filter and air resistance indicator. Exhaust gas turbocharger is used to ensure sufficient air intake and guaranteed performance. 4.Exhaust system of Cummins genset Cummins diesel generator set uses pulse dry exhaust pipe, which can effectively utilize exhaust gas energy and give full play to engine performance; exhaust elbow and exhaust bellows with diameter of 127mm are installed in the unit for easy connection. 5.Cooling system of Cummins power generator Cummins diesel generator set engine adopts gear centrifugal pump for forced water cooling and large flow water channel design, which has good cooling effect and can effectively reduce heat radiation and noise. Unique spin on water filter can prevent corrosion and corrosion, control acidity and remove impurities. 6.Lubrication system of Cummins diesel generator set Variable flow oil pump with signal pipe of main oil duct can adjust pump oil quantity according to oil pressure of main oil passage and optimize oil quantity entering into engine; at low oil pressure (241-345kpa), the above measures can effectively reduce pump oil power loss, improve power performance and improve engine economy. 7.Output power of Cummins diesel genset The crankshaft pulley with double groove power output can be installed in front of the shock absorber. The front end of Cummins diesel generator set is equipped with multi groove accessory drive pulley, which can be equipped with various front-end power take-off devices. If you have purchase plan of diesel generators, but do not know buy which brand, we recommend Cummins brand to you, it is the most used by people all over the world. And Cummins genset sales is the best in our company. Cummins has global joint quality guarantee, During quality warranty time, customers can enjoy maintenance free. If you are looking for high quality diesel generator, you are correct to find us, please call us +8613481024441 or send us email [email protected]. As a generator set maintenance technician, it is necessary to know the basic process of overhaul for 500kw diesel power generating set. Today Starlight Power shares the overhaul methods for diesel engine and alternator of generator set.
1.Overhaul of diesel engine of generator set The overhaul of diesel engine is a restorative repair. It is mainly to restore the dynamic performance, economic performance and fastening performance of diesel engine parts to ensure the good condition and long service life of diesel engine. Basic comments of overhaul of diesel engine A. Repair or replace crankshaft, connecting rod, cylinder liner, valve seat and valve guide; B. Repair eccentric bearing; C. Replace the plunger pair, oil delivery valve pair and needle valve pair; D. Repair and welding of oil pipe and joint; E. Repair and replace water pump and governor, and remove water jacket scale; F. Check, repair and adjust the circuit, instrument, charging generator and starting motor in the power supply system; G. Install, monitor, test, adjust each system and load test. When overhaul diesel engine, generally according to specified working hours data and technical situation. Different overhaul working hours for different type of diesel engine. For example, due to improper use and maintenance or poor working conditions of diesel engine (dusty, often working under overload conditions, etc.), it may not be able to continue to use before the working hours are reached. Therefore, in determining the overhaul of internal combustion engine, in addition to the working hours, it is also necessary to determine the following overhaul conditions. A. The internal combustion engine can not work well (the speed drops greatly after loading, and the sound suddenly changes), and the exhaust emits black smoke. B. It is difficult to start the internal combustion engine at normal temperature. After heating, the crankshaft bearing, connecting rod bearing and piston pin have knocking sound. C. When the temperature is normal, the cylinder pressure can not reach 70% of the standard pressure. D. Significant increase in fuel and oil consumption. E. Loss of roundness of cylinders, shape, clearance between piston and cylinder, the roundness of the connecting rod journal exceeds the specified limit. When overhauling diesel engine , we should repair main parts. The whole engine is divided into assembly and parts, and inspected and classified. In addition, it has more technical conditions for repair, so that it can be thoroughly inspected, repaired and assembled. 2.Overhaul process of alternator for generator set The overhaul period of generator is generally 2-4 years. The main contents of the overhaul are as follows: 1)Disassemble the body and take out the rotor A. Mark the screw, pin, gasket and cable head before disassembly. After the cable head is disassembled, it shall be wrapped with clean cloth, and the rotor ring shall be wrapped with neutral Vaseline soil and then wrapped with green shell paper; B. After removing the end cover, carefully check the clearance between the rotor and stator, and measure the upper, lower, left and right clearances; C. When taking out the rotor, it is not allowed to collide or rub with the stator. After taking out the rotor, it should be placed on a stable hardwood pad. 2)Repair stator. A. Check the base and shell and clean them. The paint is required to be in good condition; B. Check the stator core, winding and the inside of the frame, and clean the dust, oil dirt and sundries. The dirt on the winding can only be removed with a shovel made of wood or plastic, and wiped with a clean cloth. Pay attention not to damage the insulation; C. Check whether the connection between the stator shell and the core is tight and whether there is crack at the welding part; D. Check the integrity of stator and its parts, and complete the missing parts; E. Use 1000-2500V megohmmeter to record the insulation resistance of two or three-phase winding. If the resistance value is unqualified, find out the reason and take corresponding treatment; F. Check whether the stator slot is loose, broken and protruding, and check whether the winding bar in the ventilation ditch is bulging. If Qizi and insulating sleeve are blackened, it indicates overheating phenomenon. It is necessary to eliminate poor ventilation or reduce load operation. Check the end insulation for damage. When the insulation pad and the insulation clip have dry shrinkage, the pad can be added or replaced. If the end binding is loose, the long-term binding wire can be removed, and the new binding wire can be used to bind again; G. Check whether the clamping screw of stator core is loose. If the insulation pad under the clamping nut is damaged, replace it. When measuring the insulation resistance of clamping screw with 500-1000v megger, it should be 10-20m Ω in general; H. Check the fastening of the connection between the head and the cable caused by the generator; I. Check whether the bearing splashes oil to the end of winding. If there is oil dirt on the end of winding, clean cloth can be dipped in gasoline or carbon dioxide to wipe. If the end insulation is seriously corroded by oil, a layer of oil resistant protective paint can be sprayed if necessary.; J. Inspect and trim the end cover, sight glass, felt pads on the stator housing and other seams. 3)Inspect rotor A. Use 500V megger to measure the insulation resistance of rotor winding, if the resistance value is unqualified. Find out the cause and deal with it; B. Check the rotor surface for discoloration. If so, it indicates that there is local overheating on the iron core, retaining ring, and the causes shall be found out and handled. If it cannot be eliminated, the output power of generator shall be limited; C. Check the balance block on the rotor, which should be fixed firmly without increasing or decreasing or changing position, and the balance screw should be locked firmly; D. For the hidden pole rotor, check whether the groove is loose, broken and discolored, check whether the collar and the core ring have cracks, rust spots and discoloration, and check whether there are signs of looseness and displacement at the joint between the collar and the rotor; F.For the rotor, check for rust. Whether the screw is tight, whether the magnetic pole winding is loose, and measure the insulation resistance of the winding, which should be qualified; G. Check the fan to remove dust and grease. The fan blade shall be free from looseness and breakage, and the locking screw shall be tightened; H. Check slide, brush and brush holder. Starlight Power manufacturer also provides various brands diesel generator set, such as Cummins, Volvo, Perkins, Deutz, Doosan, Yuchai, Shangchai, Weichai, Wuxi and Ricardo. Welcome to contact us by email [email protected]. Recently, Starlight Power signed a contract with an engineering construction company for 1800kw MTU silent diesel generator set. Thanks for the customer's support in this cooperation.
The engineering construction company was founded in 1993, business scope includes construction engineering, municipal engineering, mechanical and electrical equipment installation, decoration engineering contracting, etc. Over the past 43 years, Starlight Power company has always provided good product and technical support and good after-sales service for our customers. The 1800KW MTU silent genset has reasonable structure design, modular structure design, convenient maintenance, excellent engine load response characteristics, and meets the national emission standard. There is no need to do additional purification and dust removal treatment. The noise level is 80dB @7m, which meets the National noise index. Our technicians will be responsible for installation, commissioning and technical operation training. The supply list of 1800KW MTU silent diesel generator set includes 1800kw genset, MTU engine, Marathon alternator, Deep Sea controller, rubber shock absorber, water tank( 50℃), 200AH battery(4 pcs), 220V battery charger, silencer, bellows, Oil water separator, water jacket heating equipment(2KW), silent case, fuel tank 2000L, output cabinet switch, ABB circuit breaker, accessories: instrument, transformer, etc. Technical specifications for silent type 1800KW MTU diesel generator set Manufacturer: Jiangsu Starlight Electricity Equipments Co.,Ltd. Genset model: XG-1800GF Type: silent type ( weather & soundproof) Prime power: 1800KW Rated voltage: 230/400V Rated frequency: 50Hz Rated current: 3240A Overall size: 9x2.6x2.78m Net weight: 15000kg The special treatment technology of MTU/DDC on cylinder block can completely avoid the influence of high sulphur content of domestic diesel oil on diesel engine. It also ensures that in a large number of practical use in China, the MTU continuous operation failure time record is more than 10 times higher than that of other international advanced EFI diesel engines. MTU/DDC's unique electronic management system can detect the hidden trouble of diesel engine all the time. It can show 385 fault codes.The type of fault diagnosis is several times higher than that of other international advanced EFI diesel engines. Max. availability, minimum downtime and max. efficiency in 24/7 continuous use. Compared with the EU stage III A / EPA Tier 3, the series 1600, 2000 and 4000 save 5% fuel and the engine's life is up to 20%. Technical specifications for MTU diesel engine Manufacturer: MTU Engine model: 16V4000G23 Engine power: prime/standby: 1980KW/2475KW Number of cylinder: 16 Capacity of oil: 300L Fuel consumption: 192g/KW.h Technical specifications for Marathon alternator Manufacturer: Marathon Model: MX-1800-4 Rated speed: 1500rpm Type: Brushless self excitation Bearing: single bearing Alternator efficiency: above 95% Protection level: IP23 Insulation class:H Technical data for Deep Sea controller Manufacturer: Deep Sea make: UK Model: DSE7320 Starlight power generator set power range is from 20KW to 2750KW, if you interested in diesel generator set, welcome to contact us by email [email protected]. Today Starlight Power generator manufacturer tell you how to adjust fuel supply in Cummins diesel genset, hope it is helpful to you.If the fuel supply of each cylinder of Cummins diesel generator set is not uniform (for example, the fuel supply of some cylinders is too large and that of some cylinders is too small), the stability of engine operation will be directly affected. The fuel injection pump can be removed to check and adjust on the test bench. However, if there is no test bed and it is necessary to check the uneven fuel supply, the fuel supply of the suspected cylinder can also be roughly checked. Inspection and adjustment method:
1.Prepare two glass measuring cylinders for use. If the measuring cylinder cannot be found for a while, two identical vials can be used instead. 2. Remove the high-pressure oil pipe joint between cylinder 1 with excessive fuel supply (or too small) and fuel injector. 3. Then remove the high-pressure pipe joint between cylinder 1 with normal fuel supply and fuel injector. 4. Insert the two tubing ends into two measuring cylinders (or vials) respectively. 5. Use the starter to turn the engine to make the fuel injection pump pump oil. 6. When there is a certain amount of diesel oil in the equivalent cylinder (or small bottle), put the measuring cylinder on the horizontal platform to compare the amount of oil, then we can determine whether the fuel supply is too large or too small. If a small bottle is used instead, it can be weighed and compared. The relative position of the fork (or ring gear) on the adjusting rod (gear rod) of the fuel injection pump can be adjusted. To P_ The pump can be adjusted by turning the flange sleeve. During the operation of Cummins diesel generator set, the following points should be paid special attention to according to experience: 1.Loosen the fixed screw of fork (or gear ring, or flange sleeve). Only a small amount of movement is needed to change the oil supply quantity. Do not move too much, otherwise it is difficult to adjust accurately (if necessary, mark the initial position for easy comparison). 2.After each adjustment, the tightening degree of the set screw must be confirmed. 3. When adjusting the fuel supply, it should be ensured that the oil quantity is not higher than the standard oil supply. This is because the adjustment is carried out at low speed. Considering the influence of many factors such as oil leakage, a large nonuniformity (30%) is allowed at this time, but at high speed, due to the influence of throttling and other factors, the allowable unevenness is small (3%). If the fuel quantity at low speed is higher than the standard fuel supply, the high-speed fuel supply may have a large change, or even exceed the rated fuel supply. 4. If there is a big difference between the maximum fuel supply and the minimum fuel supply on the same engine, do not rush to adjust it. First, the outlet valves of the two pumps can be adjusted and installed to check and compare. Sometimes, the fuel supply can be changed by doing so. If there is no change in oil supply after the adjustment, the two pumps should be adjusted one by one. 5. The operation must be careful and careful when adjusting the fuel supply by comparison. We are not only provide genset technical support, but also provide good quality 25kva-3000kva electric generators, contact us by email [email protected] with your requirements, we will quote you according to your requirements. We believe we can give you high quality product and good service. Starlight Power is OEM supplier of Cummins diesel engine for genset in China. Starlight Cummins diesel genset power range is from 20KW to 1500KW. Emissions standard can meet Stage II and Stage III in China, which is be equal to EU Stage II and EU Stage III. Today Starlight Power mainly shares technical specifications of 300KW DCEC Cummins generator set.
Dongfeng Cummins Engine Co.,Ltd.( DCEC) is a engine manufacturer in China, who is joint ventures with USA Cummins. DCEC Engine quality is same as USA Cummins. 1.300KW diesel generator set technical data Manufacturer: Starlight Power Make/brand: China/Shuangtong Genset model: XG-300KG Type: Open type/silent type Genset prime/standby power: 300KW/330KW Rated frequency: 50Hz/60Hz Rated speed: 1500rpm Rated current: 540A Rated voltage: 230/400V or as you need Steady state voltage regulation rate: ≥±2.5% Voltage stability time: ≤3s Voltage fluctuation rate: ≤ ±0.5% Steady state frequency regulation rate: ≤0.5% Accessories include battery(maintenance free), silencer, base bottom fuel tank for 8 hours operation (for silent type genset), shock-reducing rubber, user manual etc. Open type genset also can be equipped with base bottom fuel tank if required. 2.DCEC Cummins diesel engine QSZ13-G6 technical data Manufacturer: Dongfeng Cummins Engine Co.,Ltd. Model: QSZ13-G6 Prime/standby power: 328KW/374KW @1500rpm Prime/standby power: 360KW/410KW @1800rpm Compression Ratio: 17:1 Cylinders: 6 Bore and stroke: 130x163mm Displacement: 13.0 L Aspiration: Turbocharged & Charge Air Cooled Emission Certification: Euro StageIIIA/ MEP StageIII Governor Regulation: ≤1% Fuel consumption at prime rating power: 1500rpm: 100%: 81.8L/h 75%: 64.6L/h 50%: 46.9L/h 1800rpm: 100%: 88.7L/h 75%: 68.8L/h 50%: 50.2L/h ENGINE MOUNTING Maximum static mounting surface bending moment Rear face of block: 1356N.m Maximum static bending moment of FAN: 21 N.m Maximum allowable weight on Engine Support: 1500 kg EXHAUST SYSTEM Max. back pressure imposed by complete exhaust system: 13kPa Maximum allowable static bending moment at exhaust outlet flange: 19N.m Exhaust pipe size (recommendatory): 13mm LUBRICATION SYSTEM Oil pressure @ idle - minimum: 82.7kPa Typical oil pressure range - warm engine: 207 - 300 kPa Total system capacity (standard pan):75.33 L Maximum lube oil flow to all accessories: 7.57L/min COOLING SYSTEM Coolant Capacity (Engine Only): 23.1L Engine coolant circuit thermostat opening temperature: 82℃ Engine coolant circuit thermostat fully open temperature: 94℃ Maximum coolant temperature - engine out: 102℃ Minimum operating block coolant temperature: 71 ℃ Maximum coolant temperature for engine protection controls: 107℃ Maximum coolant pressure(exclusive of pressure cap; closed thermostat at maximum no load speed): 407kPa Minimum pressure cap rating at sea level: 103kPa Maximum Coolant Friction Head External to Engine: 75kPa Maximum deaeration time: 25min Minimum fill rate (low level alarm required for most engines): 19L/min Maximum coolant expansion space (% total system capacity): 10% FUEL SYSTEM Maximum allowable restriction @ OEM point with maximum fuel flow: 13.5 kPa Maximum fuel drain restriction (total head) before (or without) check valve: 27kPa Minimum fuel tank venting requirement: 0.2 L/s Maximum fuel inlet temperature: 71 ℃ Maximum heat rejection to return fuel: 5.36kW Maximum design fuel flow: 204 kg/h ELECTRICAL SYSTEM System voltage: 24V Minimum battery capacity-cold soak at -18 C (0 F) or above Engine only cold cranking amperes: 900CCA Engine only reserve capacity: 270min Exhaust Emissions Data Gaseous Emissions per GB 20891-2014: 1500 r/min - Weight-Specific NOx+HC: 3.430g/kW.h - Weight-Specific CO: 0.630g/kW.h - Weight-Specific Particulates: 0.063g/kW.h 3.Advantages of Starlight DCEC Cummins diesel generator set A.Fuel economy, high thermal efficiency. When the working condition changes, the fuel consumption rate curve changes relatively flat, and it is economical under low load. B.Reliable and durable, low fault rate. C.Wide application range. D.Low harmful emissions. E.Long service life, low noise. Starlight Cummins diesel generators are more popular all over the world. Of course, we also have other brands, such as Perkins, Volvo generators, Yuchai, Shangchai, Weichai, Ricardo, Wuxi etc, power ragnge is from 20kw to 2500kw, If you have purchase plan, welcome to contact us by email [email protected] or call us +8613481024441, we will work with you. After a long time use of diesel generator set, there will be caebon deposit in cylinder head and psiton if not maintain regularlly.
Carbon deposit of generator set is a kind of hard material with strong adhesion and poor heat transfer performance. As the engine is used for a long time, the carbon deposits will accumulate in the combustion chamber, the top of the piston, the intake and exhaust ducts, etc. It not only hinders the heat dissipation of combustion chamber and piston, but also reduces the volume of combustion chamber and makes the engine work more rough. If the carbon deposit adheres to the intake and exhaust valves and their pipes, the exhaust will be blocked and the air intake will be insufficient; if the carbon deposit is formed at the head of the fuel injector, it is easy to block the injection hole and cause poor fuel atomization. Therefore, it must be removed during maintenance. The more advanced methods are ultrasonic cleaning and nuclear spraying, but the most commonly used and simplest methods are physical and chemical methods. The two methods can also be used simultaneously. Chemical method to remove carbon deposits is to take the chemical solution prepared according to the proportion as the raw material to remove the carbon deposit. The prepared solution is heated to 95 ~ 100 ° C, and then the parts are immersed in it for about 60 minutes. After the carbon deposit is fully softened, the carbon deposit on the part is removed with a brush, and finally cleaned with hot water and dried with compressed air. Physical cleaning method: physical cleaning method is a method often used for thick carbon deposits. The steps are as follows: 1. After removing the cylinder head, valve, intake and exhaust pipe, kerosene can be used to soften the carbon deposit. 2. Remove softened carbon deposits with a wooden scraper. 3. Clean with diesel or gasoline after cleaning. 4. When removing the carbon deposits on the cylinder head and top of the piston without removing the piston, the piston can be placed at the top dead center position, and a layer of grease should be applied at the gap between the piston and the cylinder wall to prevent the carbon deposit from falling into the gap and then scraping. Be careful when you work. 5.When scraping, try not to use metal scraper to avoid damaging the surface of machine parts. Special care should be taken for aluminum alloy products. Once the scratch mark is not treated, the mark will become a new carbon deposition growth center after assembly and use, and the growth rate is much faster than before, so in case of scraping the mark, sandpaper can be used to grind and smooth. 6. After scraping the piston crown and cylinder port, remove the carbon deposit and grease together, and scrub them. Starlight Power is a china manufacturer of power & generating sets, founded in 1974. Genset power range is from 20kw to 3000kw, welcome to contact us by phone +8613481024441 (same as WeChat). 1) The insulation between iron chips is damaged. Fault phenomenon: temperature rises during operation. The possible causes of the failure are: poor insulation between iron chips, bad use of environmental conditions or long-term operation under high temperature, which promote the insulation aging between iron chips.
(2) Poor contact between grounding plate and iron core. Fault phenomenon: there is discharge sound between iron core and oil tank during operation. Cause of failure: the grounding plate is not inserted tightly, and the mounting screw is not tightened. (3) The iron core is loose. Fault phenomenon: abnormal vibration or noise during operation. The cause of failure: the iron core clamp is not clamped, and the iron chip is loose. (4) Turn to turn short circuit of winding. Fault phenomenon: during operation, the temperature rises, there is sound of discharge, the high-voltage fuse is blown, and the indication of the secondary side voltmeter is unstable, varying from high to low. Causes of failure: system over-voltage, long-term overload operation, insulation aging, poor manufacturing process. (5) The winding is broken. Fault phenomenon: during operation, arc may be generated at the broken line, with discharge sound, and the voltmeter indication of broken line phase is reduced or zero. Causes of the fault: poor welding process, insufficient mechanical strength or unqualified outgoing line, resulting in broken winding lead. (6) Insulation breakdown of winding to ground. Fault phenomenon: the fuse on the high voltage side is continuously fusing, and there may be discharge sound. Causes of failure: winding insulation aging or conductive impurities in the winding, insulation oil moisture, overvoltage breakdown, serious oil shortage, etc. (7) Short circuit between windings. Fault phenomenon: high voltage side fuse is blown, oil temperature increases sharply, and even fuel injection smoke phenomenon. Causes: winding insulation aging, insulation oil moisture, serious oil shortage. (8) Discharge flashover between bushing. Fault phenomenon: high voltage side fuse is blown, bushing flashover discharge. Causes of failure: the casing is mechanically damaged by external force, foreign matters or small animals enter between the casings, the casing is seriously polluted and the insulation is poor. We are manufacturer of diesel power generator in China, if you are interested, contact us by email [email protected]. |
作者
dieselgenerator 存档
July 2022
类别 |