Application - ABB 615 series Technical Manual

Section 10
Power quality measurement functions
10.3.6
1054
Parameter description
Variation Ph B start time stamp (phase B variation
start time moment)
Variation duration Ph C
Variation Ph C start time stamp (phase C variation
start time moment)
Current magnitude Ph A preceding variation
Current magnitude Ph B preceding variation
Current magnitude Ph C preceding variation
Table 927: Enumeration values for the recorded data parameters
Setting name
Variation type
Variation type
Variation type
Variation type
Variation type
Variation type
Variation type

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).
PQSS is used for measuring short-duration voltage variations in distribution networks.
The power quality is evaluated in the voltage waveform by measuring the voltage swells,
dips and interruptions.
Parameter name
Var Dur Ph B time
Variation Dur Ph C
Var Dur Ph C time
Var current Ph A
Var current Ph B
Var current Ph C
Enum name
Swell
Dip
Swell + dip
Interruption
Swell + Int
Dip + Int
Swell+dip+Int
1MAC059074-MB A
Value
1
2
3
4
5
6
7
615 series ANSI
Technical Manual