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Power components handled in IED
(iii)
Power components (active 'P', reactive 'Q', and apparent 'S') are introduced with the current
and voltage components, which are defined by VT connection styles (see Chap. 5.4.5 and 5.4.6).
Table 5.4-14 shows the power components that will be defined by the settings [Conn-CT] and
[Conn-VT].
Table 5.4-14 Power factors defined with VCT applied signals and settings
Electric power
handled in IED
3PN & 3P
P
P
+ P
a
b
Pa
| V
Active
power
Pb
| V
| ∙ | I
b
| V
Pc
Q
Q
+ Q
a
Qa
| V
Reactive
power
Qb
| V
| ∙ | I
b
| V
Qc
S
S
+ S
a
b
Sa
Apparent
power
Sb
| V
| ∙ | I
b
Sc
PF
PFa
Power
Pb
factors
PFb
⁄
PFc
Settings [Conn-CT] & [Conn-VT]
3PN & 2P
3PP & 3P
| V
+ P
ab
c
| ∙ | I
| cos ��
a
a
| cos ��
0
b
| ∙ | I
| cos ��
c
c
| V
+ Q
b
c
| ∙ | I
| sin ��
a
a
| sin ��
0
b
| ∙ | I
| sin ��
c
c
+ S
c
| V
| ∙ | I
|
a
a
|
0
b
| V
| ∙ | I
|
c
c
Pa
⁄
Sa
0
Sb
Pc
⁄
Sc
- 644 -
3PP & 2P
2PP & 3P
| cos �� + | V
| ∙ | I
| ∙ | I
| cos ��
a
c
cb
0
0
0
| sin �� + | V
| ∙ | I
| ∙ | I
| sin ��
ab
a
c
cb
0
0
0
| V
| + | V
| ∙ | I
| ∙ | I
|
ab
a
c
cb
0
0
0
P
⁄
S
0
0
0
6F2T0207 (0.01)
2PP & 2P
Other
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GRE200 (5,6)
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