V_A
V_C
V_B
ST_B
ST_C
ST_A
DIPST
INTST
SWELLST
SWELLOPR
INTOPR
DIPOPR
Voltage Int set
Voltage dip set
Voltage swell set
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
FALSE
TRUE
GUID-0657A163-7D42-4543-8EC8-3DF84E2F0BF5-ANSI V2 EN
Figure 224:
Concurrent dip and swell when Phase mode is "Single Phase"
, one phase is in dip and two phases have a swell indication. For the
Phase
Mode Dip
value "Three Phase", the activation occurs only when all the phases are active.
Furthermore, both swell and dip variation event detections take place simultaneously. In
case of a concurrent voltage dip and voltage swell, both SWELLCNT and DIPCNT are
incremented by one.
shows that for the
Phase Mode
value "Three Phase", two different time
moment variation event swell detections take place and, consequently, DIPCNT is
incremented by one but SWELLCNT is totally incremented by two. Both in
it is assumed that variation durations are sufficient for detections to take
place.
1MRS240050-IB C
Section 8
Power quality measurement functions
REF615R
429
Technical Manual
Summary of Contents for RELION REF615R
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