ABB Relion 650 Series Technical Manual page 431

1MRK 506 326-UUS B
IEC99000530 V1 EN-US
Figure 232: Reporting with integral dead-band supervision
13.4.8.2 Measurements CVMMXN
Mode of operation
The measurement function must be connected to three-phase current and three-phase voltage
input in the configuration tool (group signals), but it is capable to measure and calculate above
mentioned quantities in nine different ways depending on the available VT inputs connected to
the IED. The end user can freely select by a parameter setting, which one of the nine available
measuring modes shall be used within the function. Available options are summarized in the
following table:
Set value
for
parameter
"Mode"
1 A, B, C
2 Arone
3 PosSeq
Table continues on next page
Line distance protection REL650
Technical manual
A1 >=
Y
pre-set value
A >=
pre-set value
Y2
Value Reported
(1st)
A
Y1
Formula used for complex,
three-phase power calculation
= × +
*
S V I V I
A A B
EQUATION1561 V1 EN-US
= × -
*
S V I
AB A
(Equation 62)
EQUATION1563 V1 EN-US
= × ×
S 3 V I
PosSeq
(Equation 64)
EQUATION1565 V1 EN-US
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Y3
A1
Value
Value
Reported
Reported
Formula used for voltage
and current magnitude
calculation
(
× + ×
* *
V I = +
V V
B C C
A
(
= +
I I I
A
EQUATION1562 V1 EN-US
(
=
V V
×
*
V I
AB
BC C
(
= +
I I
A
EQUATION1564 V1 EN-US
= ×
* V 3 V
PosSeq
=
I I
PosSeq
EQUATION1566 V1 EN-US
A2 >=
pre-set value
A3 + A4 + A5 + A6 + A7 >=
pre-set value
A2
A4
Y4
A5
A3
Value
Reported
Comment
Used when three phase-to-
)
+
ground voltages are available
V V / 3
B C
)
+
I / 3
B C
Used when three two phase-to-
)
+
phase voltages are available
V / 2
BC
)
I / 2
C
(Equation 63)
Used when only symmetrical
three phase power shall be
PosSeq
measured
(Equation 65)
Section 13
Monitoring
A6
A7
Y5
Value
Reported
t
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