Starlight generator

In principle, diesel generators can operate at reverse power. But in fact, when the reverse power runs, the generator will become a motor, which not only cannot send out electricity, but also consumes itself, and uses the electricity of the grid. Long time reverse power operation may cause winding burnout. Therefore, in general, it is not allowed to operate the generator inversely for a long time. The reason for reverse power of diesel generators Generators can not be synchronized completely at the moment of closing, because the voltage can not be completely uniform or the phase angle frequency can not be fully synchronized, and there may be fluctuations in the power grid, it absorbs a little electricity from the grid, that is, there is a temporary reverse power phenomenon, but soon when the load is brought up within the delay time of the reverse power protection settings, reverse power will disappear. But if the load is too slow, it is likely to expand the reverse power ph

After using diesel generator set for a period of time, there will always be some faults, such as the generator cannot start normally, low oil pressure alarm,   low frequency , overspeed, abnormal noise, etc. In this article, we mainly discuss the cause of diesel generator undervoltage faults. 1. Diesel engine mechanical speed regulation The speed regulation of diesel engine is divided into electronic speed regulation and mechanical speed regulation. If it is mechanical speed regulation, then there is a fuel  pump mechanism on the diesel engine that controls the oil quantity and oil paths. There is a pull rod on the top to control the oil quantity. It is called speed control pull rod. A speed limit (high speed) push rod and a speed control push rod are distributed on both sides of the speed control pull rod. When the power is turned on for 20 seconds, the low voltage is reported. Don’t know whether the voltage and frequency is always not to go up. If it is not going up, it may be t

When we use diesel generator set, maybe there is a sudden short circuit problem, do you know how to deal with this problem? Today Starlight manufacturer will shares with you. Because magnetic circuit and magnetic resistance for direct axis of   synchronous generator   is different from that of variable axis, the stator and rotor are in relative motion, so the mutual inductance coefficient and self-inductance coefficient of stator and rotor are not constant. It is difficult to analyze and solve by using differential equations, based on the principle of flux conservation in superconducting closed loop, explain from the physical concept, and derives the short circuit current in each winding when sudden short circuit occurs. Characteristics of sudden short circuit for diesel generators 1.In the case of steady-state short-circuit, the steady-state short-circuit current is not large because of the large synchronous reactance, while in the case of sudden short-circuit, the sudd

1. Determination of diesel generator room:  Considering the air intake, exhaust and smoke exhaust of the diesel generator set, the machine room is preferably located in the first floor if possible. However, the functions of high-rise buildings are more complex, and the utilization rate of the area is high, especially the first floor, which is often used for external business, and is a golden area that is difficult to occupy. Therefore, the generator room is generally located in the underground floor of the basement, and should not be located on the second floor or below. At this time, it is very important to solve the problem of ventilation, moisture proof, smoke exhaustion, noise reduction and vibration reduction of the unit. It should be handled well in the design. Pay attention to the following points when selecting the site of the machine room: a. It should not be located in a room without an external wall, creating favorable conditions for the hot air duct and t

Lubricating system Introduction of lubricating oil The main function of lubricating oil is to reduce friction and wear by providing a long-lasting protective oil film between the moving parts of the diesel engine. It also prevents corrosion on the surface of each component. High temperature cylinders and bearings are highly dependent on the oil film. Lubricating oil also has a very important cooling effect on many components of the genset. For diesel engine oil, please use the various types of specifications described in the table below. For details, refer to the random information of the diesel engine. (SAE is the American Society of Automotive Engineers temperature/viscosity index, such as 15W/40, etc.: API represents American Petroleum Institute lubricant quality system) Attentions to lubricating oil a. Do not start or operate the diesel engine when the lubricating oil filling is opened to prevent the lubricating oil from spraying out. b. The use of lubricating oil