Influence of voltage unsymmetry on energy characteristics of vacuum pump
DOI:
https://doi.org/10.31548/energiya2(72).2024.105Abstract
Deviation and asymmetry of the voltage have the greatest impact on electric drives of production machines and mechanisms.
Voltage asymmetry leads to losses that have an electromagnetic and technological component.
Studies on the effect of voltage asymmetry on the technological characteristics of working machines and mechanisms have shown that their productivity decreases with voltage asymmetry. However, there are no studies on the influence of spring asymmetry on the energy characteristics of working machines.
The purpose of the research is to determine the influence of voltage asymmetry on the power characteristics of vacuum pumps.
With voltage asymmetry, constant and variable losses in an asynchronous electric motor change, which cause an increase in energy losses in an asynchronous electric drive.
The energy assessment of the electric drive of the vacuum pump was carried out according to the specific consumption of electricity.
The influence of voltage asymmetry on the power characteristics of vacuum pumps was studied. The dependence of the specific power consumption on the change in stiffness of the mechanical characteristics of the electric motor, which is caused by voltage asymmetry, is obtained. It was established that slippage and power loss increase with voltage asymmetry. As a result, the specific loss of electricity in the electric drive of vacuum pumps increases.
Key words: vacuum pump, voltage asymmetry, power, vacuum pump performance, specific power consumption
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