ABB Relion 670 Series Commissioning Manual page 206

Section 11
Testing functionality by secondary injection
Check that the distance-to-fault value displayed on the HMI complies with
Equation 52
p
EQUATION123 V1 EN-US
in % for two- and three-phase faults
p
EQUATION124 V1 EN-US
in % for single-phase-to-earth faults
p
EQUATION125 V1 EN-US
in % for single-phase-to-earth faults with mutual zero sequence current.
Where:
p
Z
X0
X1
XM
11.13.14.4 Completing the test
Continue to test another function or end the test by changing the TESTMODE setting to Off. Restore
connections and settings to the original values, if changed for testing purposes.
11.14 Metering
11.14.1 Pulse-counter logic PCFCNT
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
Prepare the IED for verification of settings as outlined in section "Overview " and section "Preparing
for test" in this chapter.
200
and Equation 53
Z
x
×
------ - 100
=
X1
×
3 Z
= ×
100
x
+ ×
X0 2 X1
×
3 Z
x
-------------------------------------------- - 100 ×
=
× ±
X0 2 X1 XM +
= the expected value of a distance to fault in percent
= set test point on the test set
x
= set zero-sequence reactance of a line
= set positive-sequence reactance of a line
= set mutual zero-sequence impedance of a line
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1MRK 511 403-UEN Rev. K
Equation 51,
(Equation 51)
(Equation 52)
(Equation 53)
M14955-84 v6
SEMOD53588-1 v1
M13405-2 v7
GUID-4FC03017-93BD-4B30-A874-487BF89971D5 v1
Bay control REC670
Commissioning manual