See other catalogues for
Dewetron
You may also be interested in
Text version of the page
1
www.dewetron.com/pm
Components Signal Conditioning For Your Computer Instruments Standard Models
Power Measurement
Power Measurement Instruments
DEWE-xxx-PM ... Flexible and scalable
In times of power electronics power measurement is not only a multiplication of current and voltage but primarily an analysis
of interfering high-frequency and broadband signals. Sinusoidal qualities, as once electric current and voltage, are displaced by pulse packages; power ratings do not have only 50 or 60 Hz any longer.
Beside the calculation of power for the fundamental oscillation
and all signals, questions of harmonics, symmetries, flickers and start-up processes arise.
Switching frequencies of drive mechanisms having several kHz require sampling rates of several hundred kHz and analog bandwidths of input amplifiers. The demand of preciseness is far below 0.1 % and this should preferably be the case in the entire frequency spectrum and amplification range.
Applications Wideband power analysis Engine test benches Transformer tests RPM (rotation per minute) and torque
measurement Determination of efficiency factor Harmonics analysis Record of dynamic processes Streaming up to 1 Msamples/s Examination of rotating field Hybrid cars and alternative drive systems
