Phase-Phase And Phase-Neutral Voltage Measurements Vmmxu, Vnmmxu; Voltage And Current Sequence Measurements Vmsqi, Cmsqi; Technical Data - ABB REL650 Technical Manual

Section 14
Monitoring
14.1.7.4
14.1.7.5
14.1.8
562
Phase currents (amplitude and angle) are available on the outputs and each
amplitude output has a corresponding supervision level output (ILx_RANG). The
supervision output signal is an integer in the interval 0-4, see
section "Measurement supervision".
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-earth or phase-to-phase voltage, amplitude and angle) are
available on the outputs and each amplitude output has a corresponding supervision
level output (ULxy_RANG). The supervision output signal is an integer in the
interval 0-4, see section

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, amplitude and angle). Each amplitude 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 396: Power system measurement CVMMXN technical data
Function
Frequency
Voltage
Current
Active power, P
Table continues on next page
"Measurement supervision".
"Measurement
Range or value
(0.95-1.05) x f
r
(10 to 300) V
(0.1-4.0) x I
r
(10 to 300) V
(0.1-4.0) x I
r
(100 to 220) V
(0.5-2.0) x I
r
cos φ< 0.7
1MRK 506 382-UEN A
supervision".
Accuracy
±2.0 mHz
±0.3% of U at U≤ 50 V
±0.2% of U at U> 50 V
±0.8% of I at 0.1 x I < I < 0.2 x I
r
± 0.5% of I at 0.2 x I < I < 0.5 x I
r
±0.2% of I at 0.5 x I < I < 4.0 x I
r
±0.5% of S at S ≤0.5 x S
r
±0.5% of S at S > 0.5 x S
±0.2% of P
Line distance protection REL650 2.2 IEC
Technical manual
SEMOD54417-268 v6
SEMOD54417-299 v6
M12386-1 v15
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r
r
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