VT scaling
factor p.u. Sec -
-
-
A relay feedback value; the scaling factor for the secondary voltage's per-
unit value.
U3 VT scaling
factor P/S
U0/SS
-
-
-
A relay feedback value; the scaling factor that is the ratio between the U3
channel's primary and secondary voltages. This setting is only valid if the
"2LL+U3+U4" mode is selected.
U3 scaling
factor p.u. Pri
-
-
-
A relay feedback value for channel U3; the scaling factor for the primary
voltage's per-unit value. This setting is only valid if the "2LL+U3+U4" mode
is selected.
U3 scaling
factor p.u. Sec -
-
-
A relay feedback value for channel U3; the scaling factor for the secondary
voltage's per-unit value. This setting is only valid if the "2LL+U3+U4" mode
is selected.
U4 VT scaling
factor P/S
U0/SS
-
-
-
A relay feedback value; the scaling factor that is the ration between the U4
channel's primary and secondary voltages. This setting is only valid is the
"2LL+U3+U4" mode is selected.
U4 scaling
factor p.u. Pri
-
-
-
A relay feedback value for channel U4; the scaling factor for the primary
voltage's per-unit value. This setting is only valid if the "2LL+U3+U4" mode
is selected.
U4 scaling
factor p.u. Sec -
-
-
A relay feedback value for channel U4; the scaling factor for the secondary
voltage's per-unit value. This setting is only valid if the "2LL+U3+U4" mode
is selected.
Measurements
The following measurements are available in the measured voltage channels.
Table. 5.2.2. - 25. Per-unit voltage measurements.
Name
Range
Step
Description
Voltage Ux
("UxVolt p.u.")
0.00…
500.0 × U
n
0.01
V
The fundamental frequency RMS voltage measurement (in p.u.) from each of the
voltage channels.
Voltage Ux
TRMS
("UxVolt TRMS
p.u.")
0.00…
500.0 × U
n
0.01
V
The TRMS voltage (inc. harmonics up to 31
st
) measurement (in p.u.) from each of
the voltage channels.
Table. 5.2.2. - 26. Secondary voltage measurements.
Name
Range
Step
Description
Secondary voltage
Ux
("Ux Volt sec")
0.00…
500.0 × U
n
0.01
V
The secondary fundamental frequency RMS voltage measurement from each
of the voltage channels.
Secondary voltage
Ux TRMS
("UxVolt TRMS sec")
0.00…
500.0 × U
n
0.01
V
The secondary TRMS voltage (inc. harmonics up to 31
st
) measurement
from each of the voltage channels.
Table. 5.2.2. - 27. Voltage phase angle measurements.
Name
Range
Step
Description
Ux Angle
0.00…360.00 deg
0.01 deg
The phase angle measurement from each of the four voltage inputs.
Table. 5.2.2. - 28. Per-unit sequence voltage measurements.
Name
Range
Step
Description
Positive sequence
voltage
("Pos.seq.Volt.p.u.")
0.00…500.0 ×
U
n
0.01 ×
U
n
The measurement (in p.u.) from the calculated positive sequence
voltage.
AQ-E215
Instruction manual
Version: 2.01
© Arcteq Relays Ltd
54
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