Hitachi Relion 650 Series Technical Manual page 179

1MRK 511 557-UEN Rev. A
Set value
for
parameter
"Mode"
1 L1, L2, L3
2 Arone
3 PosSeq
4 L1L2
5 L2L3
6 L3L1
7 L1
Table continues on next page
Technical Manual
Formula used for complex,
three-phase power calculation
* *
= U × I + U × I + U
S
L 1 L 1 L 2 L 2 L 3
D0E11755T201305151403 V1 EN-US
= × - ×
*
S U I U I
L L 1 2 L 1 L L 2 3 L
(Equation 3)
D0E11759T201305151403 V1 EN-US
= × ×
*
S 3 U I
PosSeq PosSeq
(Equation 5)
D0E11763T201305151403 V1 EN-US
= × -
* *
S U ( I I )
L L 1 2 L 1 L 2
(Equation 7)
D0E11896T201305151403 V1 EN-US
= × -
* *
S U ( I I )
L L 2 3 L 2 L 3
(Equation 9)
D0E11900T201305151403 V1 EN-US
= × -
* *
S U ( I I )
L L 3 1 L 3 L 1
(Equation 11)
D0E11904T201305151403 V1 EN-US
= × ×
*
S 3 U I
L 1 L 1
(Equation 13)
D0E11908T201305151403 V1 EN-US
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Formula used for voltage
and current magnitude
calculation
= + +
*
× I U ( U U U
L 3
L 1 L 2
= + +
I ( I I I ) / 3
L 1 L 2 L 3
D0E11757T201305151403 V1 EN-US
= +
U ( U U
*
L L 1 2 L L 2 3
3
= +
I ( I I ) / 2
L 1 L 3
(Equation
D0E11761T201305151403 V1 EN-US
4)
= ×
U 3 U
PosSeq
=
I I
PosSeq
(Equation
D0E11765T201305151403 V1 EN-US
6)
=
U U
L L 1 2
= +
I ( I I ) / 2
L 1 L 2
(Equation
D0E11898T201305151403 V1 EN-US
8)
=
U U
L L 2 3
= +
I ( I I ) / 2
L 2 L 3
(Equation
D0E11902T201305151403 V1 EN-US
10)
=
U U
L L 3 1
= +
I ( I I ) / 2
L 3 L 1
(Equation
D0E11906T201305151403 V1 EN-US
12)
= ×
U 3 U
L 1
=
I I
L 1
(Equation
D0E11910T201305151403 V1 EN-US
14)
Comment
Used when three phase-to-
) / 3
earth voltages are available
L 3
Used when three two phase-
) / 2
to-phase voltages are
available
Used when only symmetrical
three phase power shall be
measured
Used when only U
L1L2
phase-to-phase voltage is
available
Used when only U
L2L3
phase-to-phase voltage is
available
Used when only U
L3L1
phase-to-phase voltage is
available
Used when only U
L1
to-earth voltage is available
Section 12
Monitoring
phase-
173