ABB RELION 620 Series Technical Manual page 692

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Section 8
Power quality measurement functions
8.3.5
686
GUID-1C0C906B-EC91-4C59-9291-B5002830E590-ANSI V1 EN
Figure 348:
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.
1MAC504801-IB E
620 series ANSI
Technical Manual

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