Table 48: Test settings
Parameter Local side Remote side
Healthy condition U = 63.5V, I = 0 A (balanced
condition)
U = 63.5V, I = 0 A (balanced
condition)
Impedance
magnitude
Test points
• Z
d
= p*((R0 + 2*R1) + j*
(X0+2*X1)) for single
phase to ground faults
• Z
1-d
= p*(R1 + j* X1) for
three and two phase
faults
Test points
• Z
1-d
= (1-p)*((R0 + 2*R1) +
j* (X0+2*X1)) for single
phase to ground faults
• Z
1-d
= (1-p)*(R1 + j* X1) for
three and two phase faults
p = the per unit distance of line length
GUID-0BA09C80-7125-4CD1-82C4-B9DD782504B7 v1
Measuring the fault distance
1. Set the test points Z
d
and Z
1-d
for the local and remote IEDs respectively from Table 48.
2. Subject both the local and remote IED to healthy normal load conditions for at least two
seconds.
3. Apply a fault condition for at least 3-4 cycles (or 100 ms approximately) and bring back to the
condition as in step 2.
4. Check the result under disturbance records or function status in the LHMI.
11.13.14.4 Completing the test
GUID-0FE44853-E8EE-4E70-A588-5E21565B56BF v1
Continue to test another function or end the test by changing the TestMode setting to Off. Restore
connections and settings to their original values if they were changed for testing purposes.
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
1MRK 505 378-UEN Rev. K Section 11
Testing functionality by secondary injection
Line differential protection RED670 249
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
To Next Page