Recorded Data - ABB RELION REX640 Technical Manual

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Power quality measurement functions

Voltage swell set

Voltage dip set

Voltage Int set

GUID-DF636037-CE7A-405D-8907-82A96F70CEC6 V1 EN

Concurrent dip and two-phase swell

Recorded data

Besides counter increments, the information required for a later fault analysis is stored

after a valid voltage variation is detected.

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 starting 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

844. The function tracks each variation-active voltage phase, and the

A) Three phase mode

B) Single phase mode

1MRS759142 C

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