Phase-Phase And Phase-Neutral Voltage Measurements Vmmxu, Vnmmxu - ABB RES670 Technical Manual

Section 16
Monitoring
16.1.7.4
16.1.7.5
16.1.8
522
outputs and IEC 61850. This is achieved by magnitude and angle compensation at 5,
30 and 100% of rated current. The compensation below 5% and above 100% is
constant and linear in between, see figure 202.
Phase currents (magnitude and angle) are available on the outputs and each magnitude
output has a corresponding supervision level output (Ix_RANGE). The supervision
output signal is an integer in the interval 0-4, see section
Phase-phase and phase-neutral voltage measurements VMMXU,
VNMMXU
The voltage function must be connected to three-phase voltage input in the
configuration tool to be operable. Voltages are handled in the same way as currents
when it comes to class 0.5 calibrations, see above.
The voltages (phase-to-ground or phase-to-phase voltage, magnitude and angle) are
available on the outputs and each magnitude output has a corresponding supervision
level output (Vxy_RANG). The supervision output signal is an integer in the interval
0-4, see section "Measurement
Voltage and current sequence measurements VMSQI, CMSQI
The measurement functions must be connected to three-phase current (CMSQI) or
voltage (VMSQI) input in the configuration tool to be operable. No outputs, other than
X_RANG, are calculated within the measuring blocks and it is not possible to calibrate
the signals. Input signals are obtained from the pre-processing block and transferred to
corresponding output.
Positive, negative and three times zero sequence quantities are available on the outputs
(voltage and current, magnitude and angle). Each magnitude output has a
corresponding supervision level output (X_RANGE). The output signal is an integer in
the interval 0-4, see section
Technical data
Table 393: Power system measurement CVMMXN technical data
Function
Frequency
Voltage
Current
Table continues on next page
supervision".
"Measurement supervision".
Range or value
(0.95-1.05) x f
n
(10 to 300) V
(0.1-4.0) x I
n
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
"Measurement supervision".
SEMOD54417-268 v6
SEMOD54417-299 v6
Accuracy
±2.0 mHz
±0.3% of V at V≤ 50 V
±0.2% of V at V> 50 V
±0.8% of I at 0.1 x I < I < 0.2 x I
n
± 0.5% of I at 0.2 x I < I < 0.5 x I
n
±0.2% of I at 0.5 x I < I < 4.0 x I
n
Technical manual
M12386-1 v15
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n
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