ABB Relion 670 Series Applications Manual page 116

Section 6
Wide area measurement system
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user can select the data type of the calculated synchrophasors. The options are
Integer or Float data. The synchrophasor data are sent via the PHASORS field of data
frame organization of 60255-118-2011 message format. Depends on the phasor data
type, the size of PHASORS field can be 4 (Integer) or 8 (Float) bytes per
60255-118-2011 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
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 60255-118-2011 message format. Here the
user can select the type of the analog data which are reported along with the
synchrophasor data over 60255-118-2011 message. The options are
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 60255-118-2011
message format. Depends on the analog data type, the size of ANALOG field can be
2 (Integer) or 4 (Float) bytes per 60255-118-2011 message. More information is
available under the section
FrequencyDataType : It refers to the Bit 3 of the FORMAT field of the configuration
frames 1, 2 and 3 organization defined in 60255-118-2011 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
60255-118-2011 message. The options are
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 60255-118-2011 message format.
Depends on the selected data type, the size of each field can be 2 (Integer) or 4
(Float) bytes per 60255-118-2011 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.
frequency-deviation data represents 16-bit signed integers, range –32 767 to +32 767
Float data type represents actual frequency value in IEEE floating-point
32, and
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.
data type for ROCOF data represents 16-bit signed integers, range –32 767 to +32
Float data type represents actual value in IEEE floating-point format.
767 32, and
SendFreqInfo : Enables/Disables sending of the frequency-deviation and Rate Of
Change Of Frequency (ROCOF) data by choosing
ReportRate : It refers to the 2-byte DATA_RATE field of the configuration frames 1, 2
and 3 organization defined in 60255-118-2011 message format. The DATA_RATE field
is identifying the Rate of phasor data transmissions by a 2-byte integer word (–32
767 to +32 767). Here the user can select the synchrophasor data reporting rate from
the PMU based on the number of frames per second.
In general, the IED has 5 different reporting rates (10, 25, 50, 100, 200 fr/s) on the 50
Hz system frequency, and has 8 different reporting rates (10, 12, 15, 20, 30, 60, 120,
240 fr/s) on the 60 Hz system frequency. The options are as follows:
• 10/10 fr/s (60/50Hz)
• 12/10 fr/s (60/50Hz)
• 15/10 fr/s (60/50Hz)
• 20/25 fr/s (60/50Hz)
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4
, range –31 416 to +31 416 for the angle.
Scaling Factors for ANALOGREPORT
Integer or Float data corresponding to the
On / Off setting.
1MRK 511 401-UEN Rev. K
Integer or Float
channels.
Integer data type for
Integer
Bay control REC670
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