Fault Record - Measurement Value [Record (Rms)] - Mitsubishi Electric MELPRO S Series Operation Manual

4.2. Fault Record – Measurement Value [RECORD (RMS)]
The measurement value when the relay element was operating is shown by "RECORD (RMS)" function.
This protection relay can store ten (10) fault phenomena. The saved fault phenomena are displayed with
rotating in order. The indicating period of one phenomenon is 1 second.
The measured value which the phase is selected by Switch-2 is displayed.
In this measured value, the harmonic elements are eliminated by the protection relay's filters. The different
value would be appeared between this measured value from protection relay and an electrical indicators (e.g.
voltage meter or current meter).
Turn Switch-1 to "RECORD
(RMS)" (position 2).
Turn Switch-2.
At the beginning, the figure
one (1) which means latest
phenomenon is indicated.
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