Method for detecting sub-synchronous oscillations on AC voltage cables, and devices for carrying out the method

摘要

Particularly for quantitative detection of sub-synchronous oscillations on AC voltage cables, the length deviations (t2-t1) of characteristic time intervals (t0...t2) of the AC voltage (v) are determined with respect to associated nominal interval lengths (t0...t1). A plurality of digital test devices are proposed and elaborated for this purpose. <IMAGE>