ABB Relion REG670, Applications Manual

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C37.118.2 message format. Depends on the phasor data type, the size of
PHASORS field can be 4 (Integer) or 8 (Float) bytes per IEEE C37.118.2
message.
Integer data type for the phasors corresponds to a 16-bit integer value. It
represents a 16-bit signed integer, range –32 767 to +32 767, in rectangular
format, and in polar format it represents a 16-bit unsigned integer range 0
to 65535 for the magnitude and a 16-bit signed integer, in radians × 10
4
,
range –31 416 to +31 416 for the angle.
Float data type for the phasors corresponds to 32-bit values in IEEE
floating-point format. In rectangular format, it represents real and
imaginary, in engineering units (real value first) and in polar format it
represents magnitude and angle, in engineering units (magnitude first) and
angle in radians, range –π to + π.
• AnalogDataType : It refers to the Bit 2 of the FORMAT field of the
configuration frames 1, 2 and 3 organization defined in IEEE C37.118.2
message format. Here the user can select the type of the analog data which
are reported along with the synchrophasor data over IEEE C37.118.2
message. The options are
Integer or Float data corresponding to the 16-bit
integer or 32-bit IEEE floating-point values, respectively. The analog data
could be sampled data such as control signal or transducer values, or it can
be active and reactive power measurement values from each feeder in the
substation. Values and ranges are separately defined by user via the
parameter settings related to the ANALOGREPORT function block. The
analog data are sent via the ANALOG field of data frame organization of
IEEE C37.118.2 message format. Depends on the analog data type, the size
of ANALOG field can be 2 (Integer) or 4 (Float) bytes per IEEE C37.118.2
message. More information is available under the section
Scaling Factors
for ANALOGREPORT channels .
• FrequencyDataType : It refers to the Bit 3 of the FORMAT field of the
configuration frames 1, 2 and 3 organization defined in IEEE C37.118.2
message format. Here the user can select the type of the frequency-
deviation and rate-of-change-of-frequency data (FREQ/DFREQ) which
can be reported along with the synchrophasor data over IEEE C37.118.2
message. The options are
Integer or Float data corresponding to the 16-bit
integer or 32-bit IEEE floating-point value, respectively.
The frequency-deviation and rate-of-change-of-frequency data are sent via
the FREQ and DFREQ fields of data frame organization of IEEE C37.118.2
message format. Depends on the selected data type, the size of each field
can be 2 (Integer) or 4 (Float) bytes per IEEE C37.118.2 message.
The data sent via the FREQ field is frequency deviation from nominal
frequency (50 Hz or 60 Hz), in mHz. It is ranged from –32.767 to +32.767
Hz.
Integer data type for frequency-deviation data represents 16-bit signed
integers, range –32 767 to +32 767 32, and Float data type represents actual
frequency value in IEEE floating-point format.
The data sent via the DFREQ field is Rate Of Change Of Frequency
(ROCOF), in Hertz per second times 100. It is ranged from –327.67 to
+327.67 Hz per second.
Integer data type for ROCOF data represents 16-bit
signed integers, range –32 767 to +32 767 32, and Float data type represents
actual value in IEEE floating-point format.
1MRK 502 071-UEN -
Section 6
Wide area measurement system
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 123
Application manual