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Automatic Voltage Regulator of Diesel Generator Set

  An AVR is at the heart of devices often called power conditioners or power stabilizers. The typical power conditioner is an automatic voltage regulator combined with one or more other power-quality capabilities, such as: 1) Surge suppression 2) Short circuit protection (circuit breaker) 3) Line noise reduction 4) Phase-to-phase voltage balancing 5) Harmonic filtering, etc. Power conditioners are typically used in low voltage (<600V) applications and sizes below 2,000KVA. In general, the AC automatic voltage regulator ( AVR ) is a device designed to regulate voltage automatically – that is, to take a fluctuating voltage level and turn it into a constant voltage level. Working principle of AVR The voltage regulator is an adjustment device that controls the generator output voltage within a specified range. Its function is to automatically control the generator voltage and keep it constant when the rotating speed of the generator changes, so as to prevent the generator...

10 Wrong Operations of 250kva Generator

  In the process of use and operation of 250kva diesel generator, what operations should not be done? Why we shouldn't do them?Today Starlight Power generator manufacturer answers for you.  1.After genset start-up, we should not runs it with load without warming up. When start up without warming up, due to the high viscosity and poor fluidity of the oil, the oil pump is not enough to supply oil, and the friction surface of the machine is badly lubricated due to lack of oil, resulting in sharp wear, and even cylinder pulling and bush burning. Therefore, the diesel engine should run at idle speed and warm up after cooling, and then run with load when the oil temperature reaches 40℃. The genset should be started in low gear, and drive in each gear step by step for a certain mileage until the oil temperature is normal and the oil supply is sufficient. Then can run normally.   2.We should not operate genset with load under lack of oil. At this time, due to the lack of oil supp...

Temperature rise of 330kw Prime generator

  What is relationship between insulation grade and temperature rise of generator? Today Starlight Power answers for you.   Insulation grade of generator Insulation grade refers to the heat resistance grade of insulation material used in generator winding. The insulation materials commonly used in generator and transformer are A, E, B, F and H. The insulation material of each insulation grade has corresponding limit allowable working temperature (the temperature of the hottest spot of generator winding). Generator of   diesel genset   usually is H grade.   Temperature of insulation grade A grade: Allowable max. temperature 105℃, winding temperature rise limit 60K, performance reference temperature 80℃. E grade: Allowable max. temperature 120℃, winding temperature rise limit 75K, performance reference temperature 95℃. B grade: allowable max. temperature 130℃, winding temperature rise limit 80K, performance reference temperature 100℃. F grade: Allowable max. tempe...

1000KW Cummins Diesel Generator Set New Genset

25kva-3000kva diesel generators

 Today Starlight Power company tell you why is oil consumption fast in diesel generator set. Some generating units in the use of the process, will appear the phenomenon of oil consumption is too fast, but do not know which parts to deal with, for this, we can refer to some content. When excessive oil consumption is found, it is necessary to first check whether there is oil leakage at the joints between the engine block and the gear housing cover, the large plate on one side of the traveling wheel, the rear cover and the cover cover. In case of oil leakage, pay attention to observe whether the sealing gasket of each connection part is complete, and the damaged sealing gasket of generator set shall be replaced. If the gasket is complete, check whether the connecting screws of each part are loose. Use a wrench to tighten the loose bolts to the specified torque. If the above parts are basically normal, and the oil leakage is in the frame position, the oil shell shall be inspected. The ...

Advantages of diesel generator with electronic fuel injection

  With people's attention to environmental protection, EFI diesel generator with its energy saving, fuel saving, environmental protection features, has become the preferred diesel generator. Today Starlight will take you to understand the principle and characteristics of EFI diesel generator set.   What is principle of EFI diesel generator?   The fuel is extracted from the fuel tank by the gear pump driven by the engine camshaft through the filter, and flows to the fuel supply pump through an electromagnetic emergency shut-off valve. At this time, the pressure is about 0.5MPa. Then, the oil flow is divided into two ways. One way passes through the small hole on the safety valve and flows into the pressure control valve through the camshaft chamber of the oil supply pump, and then flows back to the oil tank. The other way is filled with the oil supply pump of cylinder 3. In the fuel supply pump, the fuel pressure rises to 135Mpa or higher to feed into the common rail....

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