11.14 Metering
SEMOD53588-1 v1
11.14.1 Pulse-counter logic PCFCNT
M13405-2 v7
The test of the Pulse-counter logic function PCFCNT requires the Parameter
Setting tool in
PCM600 or an appropriate connection to the local HMI with the
necessary functionality. A known number of pulses with different frequencies are
connected to the pulse counter input. The test should be performed with settings
Operation = On or Operation = Off and the function blocked or unblocked. The
pulse counter value is then checked in PCM600 or on the local HMI.
11.14.2 Function for energy calculation and demand handling
ETPMMTR
GUID-4FC03017-93BD-4B30-A874-487BF89971D5 v1
Prepare the IED for verification of settings as outlined in section ”Overview “ and
section ”Preparing for test“ in this chapter.
11.14.2.1 Verifying the settings
GUID-F8F0D384-BC70-48CA-817E-EB9BFBD68A54 v3
Common test equipment can be used to determine the injection of current and
voltage and time measurement.
Verification of EAFACC & ERFACC output
1. Connect the test set for injection of three-phase currents and three-phase
voltage to the appropriate current and voltage terminals of the IED.
2. Ensure the instantaneous values of active and reactive power from CVMMXN
function block are connected to ETPMMTR function block active and reactive
power inputs.
3. Enable the EnaAcc setting and set tEnergy as 1 minute.
4. Activate the STARTACC input and supply the IED with three-phase currents
and voltages at their rated value.
5. Check that the ACCINPRG signal appears continuously.
6. Note the EAFACC and ERFACCvalue after 1 minute and compare it with
calculated energy value.
7. Similarly check after each 1 minute whether the calculated integrated energy
value and EAFACC and ERFACC outputs are matching.
8. After some time (multiple of minute) remove the current and voltage input
from CVMMXN function block.
9. Check the EAFACC and ERFACC output in the next 1 minute cycle for the
retaining the same value.
1MRK 505 378-UEN A Section 11
Testing functionality by secondary injection
Line differential protection RED670 2.2 IEC 267
Commissioning manual
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