Setting Guidelines - ABB Relion REC670 Applications Manual

1MRK 511 358-UEN A
Example how CVMMXN is operating:
The following outputs can be observed on the local HMI under Monitoring/Servicevalues/
SRV1
S
P
Q
PF
ILAG
ILEAD
U
I
F
The settings for this function is found under Setting/General setting/Monitoring/Service
values/SRV1
It can be seen that:
• When system voltage falls below
U and F on the local HMI is forced to zero
• When system current falls below
U and F on the local HMI is forced to zero
• When the value of a single signal falls below the set dead band for that specific signal, the
value shown on the local HMI is forced to zero. For example, if apparent three-phase
power falls below
16.1.4

Setting guidelines

The available setting parameters of the measurement function CVMMXN, CMMXU, VMMXU,
CMSQI, VMSQI, VNMMXU are depending on the actual hardware (TRM) and the logic
configuration made in PCM600.
The parameters for the Measurement functions CVMMXN, CMMXU, VMMXU, CMSQI, VMSQI,
VNMMXU are set via the local HMI or PCM600.
GlobalBaseSel : Selects the global base value group used by the function to define ( IBase ),
UBase ) and ( SBase ).
(
Operation : Off / On . Every function instance (CVMMXN, CMMXU, VMMXU, CMSQI, VMSQI,
VNMMXU) can be taken in operation (
The following general settings can be set for the Measurement function (CVMMXN).
PowAmpFact : Amplitude factor to scale power calculations.
PowAngComp : Angle compensation for phase shift between measured I & U.
Mode : Selection of measured current and voltage. There are 9 different ways of calculating
monitored three-phase values depending on the available VT inputs connected to the IED. See
parameter group setting table.
k : Low pass filter coefficient for power measurement, U and I.
Application manual
Apparent three-phase power
Active three-phase power
Reactive three-phase power
Power factor
I lagging U
I leading U
System mean voltage, calculated according to selected mode
System mean current, calculated according to selected mode
Frequency
UGenZeroDB , the shown value for S, P, Q, PF, ILAG, ILEAD,
IGenZeroDB , the shown value for S, P, Q, PF, ILAG, ILEAD,
SZeroDb the value for S on the local HMI is forced to zero.
On ) or out of operation ( Off ).
Section 16
Monitoring
SEMOD54481-165 v12
377