Power 300 KW rated current
I=P/1.732UcosΦ=300/1.732/0.38/0.8=300/0.53=566A
In a short time, the generator can operate at rated power It operates at 1.2 times the current, so the maximum current is equal to 566. Efficiency is the power required by the generator. The generator efficiency can be chosen between 0.8 and 0.9. If the power is low, choose a low value, and if the power is large, choose a high value. The calculation method is as follows: Calculate the generator power for a 300 kW motor: generator power = 300KW/0.85 = 352kw. If there is no 352 generator, choose a 400 kW generator.
How much diesel does a 300 kW generator use to generate one kilowatt hour of electricity?
300 kW or slightly more. Since the hydraulic turbine must provide enough power to drive the generator to generate the required electricity,the power of the generator and the hydraulic turbine is matched to ensure that the hydraulic turbine can effectively convert water energy into electrical energy while avoiding waste or excess energy. consumption.
A general generator consumes 210 to 240 grams of fuel per kilowatt hour of electricity, or approximately 0.25 to 0.28 liters. Taking into account the problem of transmission efficiency, the actual consumption is 0.3 liters.
Other generator parameters
Current = power/voltage/1.732*1000, for example: The formula for calculating the current of a 100KW 400V diesel generator set should be
< p> 100/0.8/400/1.732*1000=180.4AWhen the voltage is 10000V, its current calculation should be 100/0.8/10000 /1.732*1000=7.2A
When you know the current and need to calculate the power, its calculation formula is power = voltage * current * 1.732 * 0.8. For example, when the output currentof the diesel generator set is 360 A, its power calculation formula should be 400*360*1.732*0.8/1000=199.5KW
Extended information:
How a Diesel Generator Works
The diesel engine runs the generator, converting the energy from the diesel into power electric.
In the cylinder of the diesel engine, the clean air filtered by the air filter is fully mixed with the high pressure atomized diesel fuel injected by the injector. Under the upward pressure of the piston, the volume decreases and the volume decreases. the temperature rises rapidly, reaching the ignition point of diesel. Diesel ignites, the gas mixture burns violently, rapidly expands in volume and pushes the piston down, which is called "work".
Precautions
Proper use and maintenanceGenerator sets can extend the life of generator sets:
Workpreparation before starting:
1. Engine room operators must follow safe operating procedures and wear insulated work clothing and footwear. members must The division of labor is clear;
2. Check whether the flywheel and generator anti-rail cover is intact;
3. Check each gearbox, clutch, governor, oil level and tightening parts, etc. must be confirmed to be intact and the oil and water temperature must not be lower than 20 degrees before starting
4. working position";
5. Check the transmission mechanism connecting bolts and tighten them;
6. Check whether the clutch handle pressure is normal and whether the overspeed safety device is positioned
7. Check whether the gas storage cylinder pressure is normal, whether the overspeed safety device is in place;positioned;
8. ;
9. Check whether the circulating water pump, oil pump and fuel pump are normal;
10. Set the excitation resistor to the maximum resistance position and turn off the power supply; to change.
Baidu Encyclopedia-300kw Generator
Baidu Encyclopedia-Generator