ABB RELION 620 Series Technical Manual page 709

1MAC504801-IB E
8.4.7
Table 526: PQVUB Non group settings
Parameter Values (Range)
Opeartion 1=enable
5=disable
Unb detection method 1=Neg Seq
2=Zero Seq
3=Neg to Pos Seq
4=Zero to Pos Seq
5=Ph vectors Comp
Unbalance pickup Val 1...100
Trigger mode 1=Single
2=Periodic
3=Continuous
Percentile unbalance 1...100
Obs period selection 1=1 Hour
2=12 Hours
3=1 Day
4=7 Days
5=User defined
User Def Obs period 1...168
Obs period Str time 2008010100...2076
010100
8.4.8
620 series ANSI
Technical Manual
Settings
Unit Step
% 1
% 1
h 1
1
Monitored data
Table 527: PQVUB Monitored data
Name Type
3S_MN_UNB FLOAT32
10MIN_MN_UNB FLOAT32
PCT_UNB_VAL FLOAT32
MAX_UNB_VAL FLOAT32
MAX_UNB_TIME Timestamp
PR_STR_TIME Timestamp
Table continues on next page
Power quality measurement functions
Default Description
5=disable Opeartion Enable/Disable
3=Neg to Pos Seq Set the operation mode for voltage unbalance
calculation
1 Voltage unbalance pickup value
3=Continuous Specifies the observation period triggering
mode
95 The percent to which percentile value
PCT_UNB_VAL is calculated
5=User defined Observation period for unbalance calculation
168 User define observation period for statistic
calculation
2011010101 Calendar time for observation period start
given as YYYYMMDDhh
Values (Range) Unit
0.00...100.00 %
0.00...100.00 %
0.00...100.00 %
0.00...100.00 %
Section 8
Description
Non sliding 3 second mean
value of voltage unbalance
Sliding 10 minutes mean value
of voltage unbalance
Limit below which percentile
unbalance of the values lie
Maximum voltage unbalance
measured in the observation
period
Time stamp at which
maximum voltage unbalance
measured in the observation
period
Time stamp of starting of the
previous observation period
703