Recently, many major cities across the country have experienced serious power shortage problems. Judging from the previous early warning of the National Development and Reform Commission and the current power limit phenomenon gradually spread across the country, this year's 'power shortage' will be very serious. At present, power shortage and the subsequent power limit have spread all over the country. All companies have purchased generator sets to generate electricity by themselves to solve the problem of power shortage. Many companies rarely use generator equipment before, and may not understand some basic operating specifications of generators. We sorted out the basic operating specifications of the generator set during use. I hope that when using generator sets, we will strictly follow the operating specifications to ensure electricity use! For a generator powered by a diesel engine, the operation of its engine part is carried out in accordance with the relevant regulations of the internal combustion engine. Before starting the generator, you must carefully check whether the wiring of each part is correct, whether the connecting part is firm, whether the brushes are normal, whether the pressure meets the requirements, and whether the grounding wire is good. Before starting

[Overview] The insulating system of the generator set is a measure to ensure user safety. Risk factors such as leakage and insulator damage are partly affected by the customer's wrong operations or the external environment. Local discharges in the insulator of the generator set, which are unknown to everyone, will also be caused. Jiangsu Haixing Power Systematically explains the mystery to everyone. 1. What is local discharge of generator sets? What are the main forms? Under the action of an electric field, the electric field strength of the local area of ​​the insulator in the insulator system reaches the breakdown field strength, and discharge occurs in some areas. This phenomenon is called Partial Discharge. Partial discharge occurs only in the insulation part and does not penetrate the entire insulation. The local discharge in the generator set mainly includes internal discharge of the main insulation of the winding, end corona discharge and tank discharge (including tank corona). In addition, there is also a hazardous discharge in the generator set, which is caused by the breaking of the stator coil strand or joint.

The three most common problems in excitation generator sets: demagnetization, loss of step, and oscillation. Although Jiangsu Haixing Dynamics explained these issues separately before, many customers still have questions, so we will summarize this solution. 'Demagnetization' 'Phenomenon' During the operation of the generator set, after the generator is demagnetized due to the open circuit, short circuit, small excitation current or rotor circuit failure, the relevant meter of the generator and the excitation system are as follows: 1. The rotor ammeter and voltmeter indicate zero or close to zero; 2. The stator voltmeter indicates significantly lower; 3. The electronic ammeter indicates higher and shake; 4. The generator's active power meter indicates lower and swing; 5. The generator's active power meter indicates negative value. The generator loses the excitation current during operation, causing the magnetic field of the rotor to disappear. This may be caused by accidental tripping of the excitation switch, failure of the excitation machine or semiconductor excitation system, and disconnection of the rotor circuit. When the demagnetization hair

In recent years, large-scale data centers have grown rapidly and will be applied to more and more high-power UPS. Due to the need to control the amount of batteries used in UPS, the delay time of high-power UPS is basically 15-30 minutes, which requires matching power generation. The unit provides continuous power supply to the equipment.Based on the above reasons, we have to face the problem of matching and compatibility between high-power UPS and generator sets. The following are some personal suggestions for reference for people in the power industry:

1. Basis for purchasing diesel generator sets 1) The performance and quality of the selected diesel generator set must comply with relevant standards. Diesel generators are widely used in telecommunications, financial departments, hospitals, schools, commerce and other departments, industrial and mining enterprises and residential buildings. Emergency backup power supply, independent power supply for special purposes such as military and field operations, vehicles and ships.(Copyright © WWW.HXDLKJ.COM) As a diesel generator set for communication, it must meet the requirements of G3 or G4 in GB2820-1997, and at the same time, it must meet the requirements of the 'Implementation Rules for Network Quality Certification and Testing of Diesel Generators for Communication' 24 performance index requirements must also pass the strict inspection of the Communication Power Equipment Quality Supervision and Inspection Center established by my country’s industry authorities.As a diesel generator set for military communications, it must meet the relevant requirements of GB2820-1997 and GJB.

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When it comes to the frequency of generator sets, many uninformed customers will think that the higher the frequency, the better. However, after long-term use, the generator set is damaged. Jiangsu Haixing Power summarized this technical article for your reference for this type of customer, so that customers can promptly discover unit problems during use and reduce maintenance costs. Generally, the frequency of the generator set should not exceed 52.5HZ, i.e. 5% of the rated value. Therefore, if an abnormality in the frequency of the generator set is found during use, timely measures should be taken. When the frequency increases, it is mainly limited by the rotational mechanical strength. The high frequency and the motor speed are high. When the speed is high, the centrifugal force on the rotor increases, which easily causes damage to some parts of the rotor. When the frequency decreases, the following problems will occur: (1) The frequency decrease causes the rotor speed to decrease, which reduces the air inlet of the fans at both ends, which deteriorates the generator's cooling conditions and increases the temperature of each part. (2) Low frequency

The quality of the generator set mainly depends on the quality of the engine. The 2000kw ones are MTU, cummins, Mitsubishi, and domestic Youji Chai. If it is not a particularly important emergency, it is recommended to choose domestic ones if you are patriotic, which is also good to use. Original imported unit brands: Caterpillar, Cummins Electric, Kohler (MTU), MTU and some German assembled units have entered the domestic market, but the sales volume is not large. Domestic assembly is mainly Cummins and MTU. Because of its large power, owners are more cautious in choosing. Moreover, the domestic assembly price advantage is not obvious, and more imported from originals. If you use 2000kw, it is mainly a competition between Caterpillar and Kohler, but the price difference is not big, and most customers will choose Caterpillar.

Jiangsu Haixing Power reviewed the after-sales service information in 2010 and found that some customers failed to detect problems in time when the synchronous generator set oscillated and lost steps, resulting in damage to the unit. Then, Haixing Generator Unit guides you to judge which generator is out of step from the instructions of the meter, thereby solving the problem and ensuring the smooth operation of the unit. There are generally three steps to deal with accidents. First of all, we need to understand the essence of the problem: what are the oscillations and loss of steps in the generator set? As we all know, when the synchronous generator is operating normally, the rotation speed of the rotor and the synchronous rotation speed of the stator magnetic field are in a synchronous state. However, when the load suddenly changes, due to the inertia of the rotor, the rotor displacement cannot be stabilized immediately at the new value, but it will cause several swings around the new stable value. This phenomenon is the oscillation of the synchronous generator. When the speed of the unit that oscillates no longer coincides with the synchronous speed of the stator magnetic field, the generator and the power system are different.

In order to improve the stability of the generator set operation system, many users will forcefully excite the generator during use. So why do we need to implement strong incentives? What factors need to be considered for strong incentives? Improper operational post-processing methods will be explained to you by Jiangsu Haixing Power. As a professional manufacturer of generator sets, Haixing generator sets are professional in science and technology and have a leading level in the industry. The main operating brands include: Cummins, Volvo, Dongfeng, Weichai, Shangchai and other diesel generator sets, which have passed the national quality inspection and certification and have been highly praised by customers. First, why do we need to excite the generator set? What are the benefits of doing this? In order to improve the stability of the generator operating system, the voltage can quickly return to normal state after the short circuit failover. When the voltage drops to the corresponding value, the excitation energy of the generator will increase immediately, so the generator must implement forced excitation. Second, what factors are restricted by the time of strong incentives? Strong motivation