10.4.6 Signals
Table 702: VSQVUB Input signals
Name
Type Default Description
U_A SIGNAL 0 Phase A voltage
U_B SIGNAL 0 Phase B voltage
U_C SIGNAL 0 Phase C voltage
U
1
SIGNAL 0 Positive phase sequence voltage
U
2
SIGNAL 0 Negative phase sequence voltage
U
0
SIGNAL 0 Zero sequence voltage
BLOCK BOOLEAN 0=False Block all outputs except measured values
Table 703: VSQVUB Output signals
Name Type Description
MN_UNB_AL BOOLEAN Alarm active when 3 sec voltage unbalance
exceeds the limit
PCT_UNB_AL BOOLEAN Alarm active when percentile unbalance exceeds
the limit
OBS_PR_ACT BOOLEAN Observation period is active
10.4.7 Settings
Table 704: VSQVUB Non group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
Operation 1=on
5=off
1=on Operation On/Off
Unb detection method 1=Neg Seq
2=Zero Seq
3=Neg to Pos Seq
4=Zero to Pos Seq
5=Ph vectors Comp
3=Neg to Pos Seq Set the operation mode for voltage
unbalance calculation
Unbalance start Val 1...100 % 1 1 Voltage unbalance start value
Trigger mode 1=Single
2=Periodic
3=Continuous
3=Continuous Specifies the observation period
triggering mode
Percentile unbalance 1...100 % 1 95 The percent to which percentile value
PCT_UNB_VAL is calculated
Obs period selection 1=1 Hour
2=12 Hours
3=1 Day
4=7 Days
5=User defined
5=User defined Observation period for unbalance
calculation
User Def Obs period 1...168 h 1 168 User define observation period for statistic
calculation
Obs period Str year 2008...2076 2011 Calendar time for observation period start
year in YYYY
Table continues on next page
1MRS758755 A Section 10
Power quality measurement functions
REC615 and RER615 705
Technical Manual
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