Verifying Analog Primary And Secondary Measurement - ABB Relion 650 Series Commissioning Manual

1MRK 511 209-UEN -
4.6
REC650
Commissioning Manual
The Function test modes menu is located in LHMI under Main menu/Tests/
Function test modes.
2. Browse to the function instance that should be released.
3. Set parameter Blocked for the selected function to Yes.
Verifying analog primary and secondary
measurement
Verify that the connections are correct and that measuring and scaling is correctly.
This is done by injecting current and voltage to the IED.
Apply input signals as needed according to the actual hardware and
the application configuration made in PCM600.
Procedure
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 LHMI is located under Main menu/
Measurements/Analog primary valuesandMain 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/Tests/
Function status/Monitoring/CVMMXN/1:CVMMXN/Outputs. Then
navigate to the bottom of the list to find the frequency.
Check both analog primary and secondary values, because
then the CT and VT ratios entered into the IED are also checked.
These checks shall be repeated for Analog primary values.
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
Measured values such as current and voltages as well as active, reactive and
apparent power, power factor phase angles as well as positive and negative and
zero sequence currents and voltages are available in LHMI under Main menu/
Tests/Function status/Monitoring.
Navigate to the measurement function that contains the quantity to be checked.
Section 4
Testing IED operation
33