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1MAC050144-MB C
Section 8
Measurement functions
615 series ANSI
585
Technical Manual
Table 492: PQSS Recording data bank parameters
Table 493: Enumeration values for the recorded data parameters
8.12.6
Application
Voltage variations are the most typical power quality variations on the public electric
network. Typically, short-duration voltage variations are defined to last more than half of
the nominal frequency period and less than one minute (European Standard EN 50160 and
IEEE Std 1159-1995).
These short-duration voltage variations are almost always caused by a fault condition.
Depending on where the fault is located, it can cause either a temporary voltage rise (swell)
or voltage drop (dip). A special case of voltage drop is the complete loss of voltage
(interruption).
Parameter description
Parameter name
Recorded Data DO
Event detection triggering time stamp
Time
(Timestamp) QVV1MSTAx.VVaTyp.t, EXT
Variation type
Variation type
(INS) QVV1MSTAx.VVaTyp.stVal, EXT
Variation magnitude Ph A
Variation Ph A
(MV) QVV1MSTAx.VVa.mag.f
Variation magnitude Ph A time stamp (maximum/minimum magnitude
measuring time moment during variation)
Var Ph A rec time
(Timestamp) QVV1MSTAx.VVa.t
Variation magnitude Ph B
Variation Ph B
(MV) QVV2MSTAx.VVa.mag.f
Variation magnitude Ph B time stamp (maximum/minimum magnitude
measuring time moment during variation)
Var Ph B rec time
(Timestamp) QVV2MSTAx.VVa.t
Variation magnitude Ph C
Variation Ph C
(MV) QVV3MSTAx.VVa.mag.f
Variation magnitude Ph C time stamp (maximum/minimum magnitude
measuring time moment during variation)
Var Ph C rec time
(Timestamp) QVV3MSTAx.VVa.t
Variation duration Ph A
Variation Dur Ph A
(INS) QVV1MSTAx.VVaTm.stVal
Variation Ph A start time stamp (phase A variation start time moment)
Var Dur Ph A time
(Timestamp) QVV1MSTAx.VVaTm.t
Variation duration Ph B
Variation Dur Ph B
(INS) QVV2MSTAx.VVaTm.stVal
Variation Ph B start time stamp (phase B variation start time moment)
Var Dur Ph B time
(Timestamp) QVV2MSTAx.VVaTm.t
Variation duration Ph C
Variation Dur Ph C
(INS) QVV3MSTAx.VVaTm.stVal
Variation Ph C start time stamp (phase C variation start time moment)
Var Dur Ph C time
(Timestamp) QVV3MSTAx.VVaTm.t
Current magnitude Ph A preceding variation
Var current Ph A
(MV) QVV1MSTAx.APreVa.mag.f, EXT
Current magnitude Ph B preceding variation
Var current Ph B
(MV) QVV2MSTAx.APreVa.mag.f, EXT
Current magnitude Ph C preceding variation
Var current Ph C
(MV) QVV3MSTAx.APreVa.mag.f, EXT
Setting name
Enum name
Value
Variation type
Swell
1
Variation type
Dip
2
Variation type
Swell + dip
3
Variation type
Interruption
4
Variation type
Swell + Int
5
Variation type
Dip + Int
6
Variation type
Swell+dip+Int
7
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