Measurements Cvmmxn - ABB Relion 650 Series Technical Manual

Section 10
Monitoring
10.1.7.2
378
Value
Reported
Y1
Y2
Δt
IEC16000109 V1 EN-US
Figure 181: Example of value reporting in mode dead band and xx cyclic (xx : 5
sec , 30 sec, 1 min)

Measurements CVMMXN

Mode of operation
The measurement function must be connected to three-phase current and three-
phase voltage input in the configuration tool (group signals), but it is capable to
measure and calculate above mentioned quantities in nine different ways depending
on the available VT inputs connected to the IED. The end user can freely select by
a parameter setting, which one of the nine available measuring modes shall be used
within the function. Available options are summarized in the following table:
Y1...Y7 : Cyclic reported values, depending upon time Δt.
Y' and Y" : Deadband reported value, change is greater than setting
Value
+ΔY
Y4
Y3
Δt Δt
1MRK 511 424-UEN B
Y5
Y6
Y'
Δt Δt
IEC16000109-1-en.vsdx
Bay control REC650 2.2 IEC
Technical manual
-ΔY
Y7
Y"
Δt
Time
SEMOD54417-172 v3
SEMOD54417-174 v7