Verifying Analog Primary And Secondary Measurement - ABB REQ650 Commissioning Manual

1MRK 505 385-UEN A
8.6
Breaker protection REQ650 2.2 IEC
Commissioning manual
active. All functions that were blocked or released in a previous test
mode session, that is, the parameter Test mode is set to On, are reset
when a new test mode session is started.
Procedure
1. Click the Function test modes menu.
The Function test modes menu is located in the local HMI under Main menu/
Test/Function test modes.
2. Browse to the function instance that needs to be released.
3. Set parameter Blocked for the selected function to No.
Verifying analog primary and secondary
measurement
Verify that the connections are correct and that measuring and scaling is done
correctly. This is done by injecting current and voltage to the IED.
Besides verifying analog input values from the merging unit via the IEC/UCA
61850-9-2LE process bus, analog values from the transformer input module can be
verified as follows.
Apply input signals as needed according to the actual hardware and
the application configuration.
1. Inject a symmetrical three-phase voltage and current at rated value.
2. Compare the injected value with the measured values.
The voltage and current phasor menu in the local HMI is located under Main
menu/Measurements/Analog primary values and Main menu/
Measurements/Analog secondary values.
3. Compare the frequency reading with the set frequency and the direction of the
power.
The frequency and active power are located under Main menu/
Measurements/Monitoring/ServiceValues(MMXN)/CVMMXN:x. Then
navigate to the bottom of the list to find the frequency.
4. Inject an unsymmetrical three-phase voltage and current, to verify that phases
are correctly connected.
If some setting deviates, check the analog input settings under
Main menu/Configuration/Analog modules
Section 8
Testing IED operation
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