Title :
Laboratory measurement of the power dissipation characteristics of aeolian vibration dampers
Author :
Schmidt, J.T. ; Biedenbach, G. ; Krispin, H.J.
Author_Institution :
RIBE GmbH & Co., Schwabach, Germany
fDate :
10/1/1997 12:00:00 AM
Abstract :
The two basic methodologies for the laboratory testing of aeolian vibration dampers described in IEEE Std 664-1993 are reviewed under the aspect of mechanical impedance relationships. The results of both methodologies-test of a vibration damper using a conductor span in resonant vibration and forced response test on a shaker-otherwise not comparable can then be set in relation to each other. Experimental results are presented to give evidence to that approach. Moreover, an experimental method is described for determining power flow on a laboratory conductor span. The vibration amplitude is measured at two arbitrary locations along the span. By digital signal processing it is possible to determine separately the amplitudes of the waves travelling forward and backward along the span. With both amplitudes known, the net power flow can be computed
Keywords :
overhead line mechanical characteristics; power overhead lines; power transmission lines; vibrations; IEEE Std 664-1993; aeolian vibration dampers; conductor span; digital signal processing; forced response test; laboratory testing; mechanical impedance; overhead power lines; power dissipation characteristics; power flow; resonant vibration; travelling wave amplitude; vibration amplitude; Conductors; Damping; Impedance; Laboratories; Load flow; Power dissipation; Power measurement; Shock absorbers; Testing; Vibration measurement;
Journal_Title :
Power Delivery, IEEE Transactions on