GE L30 Instruction Manual page 387

Line current differential system
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CHAPTER 5: SETTINGS
Selection
Meaning
Ic
Phase C current, physical channel or summation as per the source settings
Ig
Fourth current channel, physical or summation as per the source settings
V1
Positive-sequence voltage, referenced to Va
V2
Negative-sequence voltage, referenced to Va
V0
Zero-sequence voltage
I1
Positive-sequence current, referenced to Ia
I2
Negative-sequence current, referenced to Ia
I0
Zero-sequence current
These settings allow for optimizing the frame size and maximizing transmission channel usage, depending on a given
application. Select "Off" to suppress transmission of a given value.
to
PMU 1 PHS-1 NM
PMU 1 PHS-14 NM
character ASCII strings are allowed as in the CHNAM field of the configuration frame. These names are typically based on
station, bus, or breaker names.
to
PMU 1 A-CH-1
PMU 1 A-CH-16
selectable analog channel of the data frame. Up to eight analog channels can be configured to send any FlexAnalog value
from the relay. Examples include frequency, rate of frequency change, active and reactive power, per phase or three-phase
power, power factor, temperature via RTD inputs, and THD. The configured analog values are sampled concurrently with
the synchrophasor instant and sent as 32-bit floating-point values scaled to Engineering units.
to
PMU 1 A-CH-1 NM
PMU 1 A-CH-16 NM
ASCII strings are allowed as in the CHNAM field of the configuration frame.
to
PMU 1 D-CH-1
PMU 1 D-CH-16
selectable digital channel of the data frame. Up to 16 digital channels can be configured to send any FlexLogic operand
from the relay. The configured digital flags are sampled concurrently with the synchrophasor instant. These values are
mapped into a two-byte integer number, with byte 1 LSB corresponding to the digital channel 1 and byte 2 MSB
corresponding to digital channel 16.
to
PMU 1 D-CH-1 NM
PMU 1 D-CH-16 NM
ASCII strings are allowed as in the CHNAM field of the configuration frame.
to
PMU 1 D-CH-1 NORMAL STATE
digital channel. These states are transmitted in configuration frames to the data concentrator.
C37.118 PMU 1 configuration
SETTINGS  SYSTEM SETUP  PHASOR MEASUREMENT UNIT  BASIC CONFIGURATION  PMU 1  PMU 1 BASIC
CONFIGURATION  C37.118 PMU 1 CONFIGURATION
 C37.118 PMU 1
 CONFIGURATION
— This setting selects whether synchrophasors are reported as 16-bit integers or 32-bit IEEE floating point
PMU 1 FORMAT
numbers. This setting complies with bit-1 of the FORMAT field of the IEEE C37.118 configuration frame. This setting applies
to synchrophasors only; user-selectable FlexAnalog channels are always transmitted as 16-bit integer values.
— This setting selects whether synchrophasors are reported in rectangular (real and imaginary) coordinates or
PMU 1 STYLE
in polar (magnitude and angle) coordinates. This setting complies with bit-0 of the FORMAT field of the IEEE C37.118
configuration frame.
With 90-5 PMU, the FORMAT and STYLE are Floating-point and Polar respectively, as specified in the IEC 61850-90-5
technical report.
L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
— These settings allow for custom naming of the synchrophasor channels. Sixteen-
— These settings specify any analog data measured by the relay to be included as a user-
— These settings allow for custom naming of the analog channels. Sixteen-character
— These settings specify any digital flag measured by the relay to be included as a user-
— These settings allow for custom naming of the digital channels. Sixteen-character
PMU 1 D-CH-16 NORMAL STATE
PMU 1 FORMAT:
Integer
PMU 1 STYLE:
Polar
— These settings allow for specifying a normal state for each
Range:
Integer, Floating-point
Range:
Polar, Rectangular
SYSTEM SETUP
5
5-173

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