ABB 615 Series ANSI, Technical Manual

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1MAC050144-MB C
Section 8
Measurement functions
615 series ANSI 583
Technical Manual
Figure 316: Concurrent dip and two-phase swell
8.12.5 Recorded data
Besides counter increments, the information required for a later fault analysis is stored
after a valid voltage variation is detected.
8.12.5.1 Recorded data information
When voltage variation starts, the phase current magnitudes preceding the activation
moment are stored. Also, the initial voltage magnitudes are temporarily stored at the
variation pickup moment. If the variation is, for example, a two-phase voltage dip, the
voltage magnitude of the non-active phase is stored from this same moment, as shown in
Figure 312. The function tracks each variation-active voltage phase, and the minimum or
maximum magnitude corresponding to swell or dip/ interruption during variation is
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A) Three phase mode
B) Single phase mode