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Cars > tingyuya’s Garage > Blog > Ibuonline for everyone to share the three frequency selection notice


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Abernant, Alabama
United States


Ibuonline for everyone to share the three frequency selection notice

By tingyuya

??Ibuonline for everyone to share the three frequency selection notice
??Ibuonline according to the years of printed circuit board manufacturing services experience, summed up the three points for attention in selection of frequency converter.
??1 types of load and frequency converter inverter selection: not in any case can be used normally, so users need to load, environmental requirements and inverter is more understanding, which is driven by a motor load is not the same, the requirements are not the same for frequency converter.
??A: fan and water pump is one of the most common load: frequency converter for the most simple, as long as the inverter capacity is equal to the capacity of the motor can be ( air compressor, water pump, sand pump, rapid changes in the music fountain need to increase capacity ).
??B: crane load: this kind of load characteristics is initiated when the impact, so a certain margin of inverter. At the same time, in the heavy lower elbow, there will be the energy feedback, so we use a brake unit or the shared bus mode.
??C: does not have a line load: some load sometimes light, sometimes heavy, this should be in accordance with the heavy load of the situation to choose the capacity of the transducer, such as rolling mill machinery, grinding machinery, mixer.
??D: large inertial load: such as a centrifuge, punch, cement rotary kiln, the load inertia is large, so the start may oscillate motor deceleration, with energy feedback. Should use the slightly larger frequency converter to start quickly, avoid oscillation. With the elimination of electric energy feedback braking unit.
??In 2 long-term low speed rotation, the motor heat high, fan cooling capacity is reduced, therefore we must adopt increase ratio or switch to 6 motor, the motor running in high frequency.
??The 3 inverter installation location must meet the standard of environmental requirements, otherwise it is easy to cause failure or shorten the service life; the inverter and the distance between the drive motor is generally not more than 50 metres, for longer distance is reduced carrier frequency or the increase output options to the normal operation of reactor.
??This article from the PCBs & Manufacturing Services, reproduced please note from PCBs & Manufacturing Services, Lighting & Electricals products, personal/office electronics equipment, more please click: Lighting & Electricals products, personal/office electronics equipment

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Cars > tingyuya’s Garage > Blog > Ibuonline for everyone to share the three frequency selection notice

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