CCSN Power Inc. diesel generator knowledge lecture: Diesel generator set in the same power range Comparison of advantages between high speed and medium speed ( 2 )
Internal combustion diesel generator sets have been in China over the past decades and used in different areas, but the majority of users are very confused on the selection, there is no industry standards agreed with the power generating units. According to different scenarios, to choose high-speed or medium speed Generator. Common users only consider parameters such as frequency, power, voltage level, power factor, etc. If they encounter a business recommendation from a manufacturer that only has low-power generator sets, they can even describe that high-speed diesel generator sets are superior to medium-speed generator sets, so that everyone can purchase them.
Suitable product should be based on entirely different to be a scene from the cost of inputs, standard operation, safety and reliability, fuel economy of maintenance costs, ongoing failure rate , low-level emergency and other pre-conditions to the right choice.
Here is a comparison of the advantages and disadvantages of high-speed and medium-speed diesel generator sets:
Serial number | High-speed diesel generator set | Medium speed diesel generator set |
1 | High-speed unit (1500 rpm) | Medium speed unit (1000 rpm) |
2 | The maximum power of a single machine: less than 2 400 KW , and the reliability increases with the decrease of power. | The maximum power of a single machine: less than 15,000 KW , and the reliability is not affected by the increase or decrease of the power. |
3 | It is suitable for places where factories, houses, construction power sources and emergency response levels are not high and no personal safety accidents will occur. | It is suitable for ships, rail transit, military, mines and places with the highest emergency response level and the places that personal safety accidents occur easily. |
4 | The supercharger is a low-pressure radial flow, high-speed, small-volume supercharger, the inlet pressure is not adjustable, and the life is short. Poor follow-up of load changes. | The supercharger is a high-pressure axial flow, low-speed, large-volume supercharger, and the intake pressure is adjustable. Strong following ability of load changes. |
5 | Power correction: no correction is needed within 300 meters above sea level. | Power correction: No correction is required within 1000 meters above sea level. |
6 | Due to the high operating speed of the high-speed unit, the moving parts are easy to wear, the quality requirements for oil, fuel, air, etc. are relatively high, the maintenance and repair cycle is relatively short, and the application environment is not harsh. | Medium-speed engines have lower operating speeds, lower quality requirements for oil, fuel, air, etc., longer maintenance and repair cycles, and relatively harsh operating environments. |
CCSN Power Inc. All Rights Reserved
Posted by: Zhang Qianying
Reviewed and translated by: Kailon Chung
