Siemens A1 Manual De Usuario
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Introduction
MICROMASTER Applications Handbook
5
· The PWM output voltage contains many high frequency harmonics (because of
the fast switching) and can be a major source of EMI.
· The input rectifier draws current only at the peak of the supply waveform, so the
input currents have a poor form factor ( i.e. the RMS value can be quite high -
this does not mean the inverter is inefficient!).
this does not mean the inverter is inefficient!).
A practical inverter needs to be designed for ease of use and installation. Large
inverters are often specially designed or engineered for each application; smaller
inverters are designed for general purpose use and are of standard design.
Siemens Standard Drives division manufacture standard inverters for this purpose.
inverters are often specially designed or engineered for each application; smaller
inverters are designed for general purpose use and are of standard design.
Siemens Standard Drives division manufacture standard inverters for this purpose.