Verifying Analog Primary And Secondary Measurement; Testing The Protection Functionality; Forcing Of Binary Input/Output Signals For Testing; Forcing Concept - ABB Relion 670 Series Commissioning Manual

Section 9
Testing IED operation
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.
9.6

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
9.7

Testing the protection functionality

Each protection function must be tested individually by secondary injection.
• Verify operating levels (trip) and timers.
• Verify alarm and blocking signals.
• Use the disturbance handling tool in PCM600 to evaluate that the protection function has received
the correct data and responded correctly (signaling and timing).
• Use the event viewer tool in PCM600 to check that only expected events have occurred.
9.8

Forcing of binary input/output signals for testing

9.8.1

Forcing concept

Forcing of binary inputs and outputs is a convenient way to test wiring in substations as well as testing
configuration logic in the IEDs. Basically it means that all binary inputs and outputs on the IED I/O
modules (BOM, BIM, IOM & SOM) can be set to a value (i.e active or not-active), selected by the user,
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Apply input signals as needed according to the actual hardware and the application
configuration.
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Commissioning manual