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/Tests/Function
status/Monitoring/CVMMXN/CVMMXN:1/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 the local HMI under Main menu/Tests/
Function status/Monitoring.
Navigate to the measurement function that contains the quantity to be checked.
Table 1: Measurement functions
Function
Quantity Description
CMMXU IL1 to IL3 amplitude, range and angle
CMSQI 3I
0
; I1 and I2 amplitude, range and angle
CVMMXN S; P; Q; PF; Ilag; Ilead; U; I and f amplitude, range and angle
VMMXU UL12 to UL31 i.e. phase-to-
phase
amplitude, range and angle
VMSQI 3U
0
; U1 and U2 amplitude, range and angle
VNMMXU UL1 to UL3 i.e. phase-to-neutral amplitude, range and angle
Also the Signal Monitoring tool in PCM600 can be used to read the measured values.
In many cases it is more convenient to use PCM600 since, among many things, reports
on measured values can be exported from the Signal Monitoring tool to other tools (for
example, MS Excel) for further analysis.
Section 5 1MRK 502 049-UEN A
Testing IED operation
40
Commissioning manual
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