CHAPTER 5: SETTINGS SYSTEM SETUPL90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 5-1755These settings allow for optimizing the frame size and maximizing transmission channel usage, depending on a givenapplication. Select “Off” to suppress transmission of a given value.PMU 1 PHS-1 NM to PMU 1 PHS-14 NM — These settings allow for custom naming of the synchrophasor channels. Sixteen-character ASCII strings are allowed as in the CHNAM field of the configuration frame. These names are typically based onstation, bus, or breaker names.PMU 1 A-CH-1 to PMU 1 A-CH-16 — These settings specify any analog data measured by the relay to be included as a user-selectable analog channel of the data frame. Up to eight analog channels can be configured to send any FlexAnalog valuefrom the relay. Examples include frequency, rate of frequency change, active and reactive power, per phase or three-phasepower, power factor, temperature via RTD inputs, and THD. The configured analog values are sampled concurrently withthe synchrophasor instant and sent as 32-bit floating-point values scaled to Engineering units.PMU 1 A-CH-1 NM to PMU 1 A-CH-16 NM — These settings allow for custom naming of the analog channels. Sixteen-characterASCII strings are allowed as in the CHNAM field of the configuration frame.PMU 1 D-CH-1 to PMU 1 D-CH-16 — These settings specify any digital flag measured by the relay to be included as a user-selectable digital channel of the data frame. Up to 16 digital channels can be configured to send any FlexLogic operandfrom the relay. The configured digital flags are sampled concurrently with the synchrophasor instant. These values aremapped into a two-byte integer number, with byte 1 LSB corresponding to the digital channel 1 and byte 2 MSBcorresponding to digital channel 16.PMU 1 D-CH-1 NM to PMU 1 D-CH-16 NM — These settings allow for custom naming of the digital channels. Sixteen-characterASCII strings are allowed as in the CHNAM field of the configuration frame.PMU 1 D-CH-1 NORMAL STATE to PMU 1 D-CH-16 NORMAL STATE — These settings allow for specifying a normal state for eachdigital channel. These states are transmitted in configuration frames to the data concentrator.C37.118 PMU 1 configurationSETTINGS SYSTEM SETUP PHASOR MEASUREMENT UNIT BASIC CONFIGURATION PMU 1 PMU 1 BASICCONFIGURATION C37.118 PMU 1 CONFIGURATIONPMU 1 FORMAT — This setting selects whether synchrophasors are reported as 16-bit integers or 32-bit IEEE floating pointnumbers. This setting complies with bit-1 of the FORMAT field of the IEEE C37.118 configuration frame. This setting appliesto synchrophasors only; user-selectable FlexAnalog channels are always transmitted as 16-bit integer values.PMU 1 STYLE — This setting selects whether synchrophasors are reported in rectangular (real and imaginary) coordinates orin polar (magnitude and angle) coordinates. This setting complies with bit-0 of the FORMAT field of the IEEE C37.118configuration frame.Ic Phase C current, physical channel or summation as per the source settingsIg Fourth current channel, physical or summation as per the source settingsV1 Positive-sequence voltage, referenced to VaV2 Negative-sequence voltage, referenced to VaV0 Zero-sequence voltageI1 Positive-sequence current, referenced to IaI2 Negative-sequence current, referenced to IaI0 Zero-sequence current C37.118 PMU 1 CONFIGURATION PMU 1 FORMAT:IntegerRange: Integer, Floating-point PMU 1 STYLE:PolarRange: Polar, RectangularWith 90-5 PMU, the FORMAT and STYLE are Floating-point and Polar respectively, as specified in the IEC 61850-90-5technical report.Selection Meaning
