Table 642:VNMMXU Monitored dataName Type Values (Range) Unit DescriptionUL1 REAL - kV UL1 Amplitude,magnitude of reportedvalueUL1ANGL REAL - deg UL1 Angle, magnitude ofreported valueUL2 REAL - kV UL2 Amplitude,magnitude of reportedvalueUL2ANGL REAL - deg UL2 Angle, magnitude ofreported valueUL3 REAL - kV UL3 Amplitude,magnitude of reportedvalueUL3ANGL REAL - deg UL3 Angle, magnitude ofreported value16.1.7 Operation principle16.1.7.1 Measurement supervisionThe protection, control, and monitoring IEDs have functionality to measure andfurther process information for currents and voltages obtained from the pre-processing blocks. The number of processed alternate measuring quantities dependson the type of IED and built-in options.The information on measured quantities is available for the user at different locations:• Locally by means of the local HMI• Remotely using the monitoring tool within PCM600 or over the station bus• Internally by connecting the analogue output signals to the Disturbance ReportfunctionPhase angle referenceAll phase angles are presented in relation to a defined reference channel. The Generalsetting parameter PhaseAngleRef defines the reference.Zero point clampingMeasured value below zero point clamping limit is forced to zero. This allows thenoise in the input signal to be ignored. The zero point clamping limit is a generalsetting (XZeroDb where X equals S, P, Q, PF, U, I, F, IL1-3, UL1-3, UL12-31, I1, I2,3I0, U1, U2 or 3U0). Observe that this measurement supervision zero point clampingmight be overridden by the zero point clamping used for the measurement valueswithin CVMMXU.Section 16 1MRK502052-UEN BMonitoring878Technical manual
