Verifying Analog Primary And Secondary Measurement - ABB Relion 670 Series Commissioning Manual

Section 10
Testing IED operation
10.6

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.
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
84
Apply input signals as needed according to the actual hardware and the
application configuration.
If the IEC/UCA 61850-9-2LE communication is interrupted during current
injection, the report tool in PCM600 will display the current that was injected
before the interruption.
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