Toshiba GR-200-5 Instruction Manual page 1145

(4) Active and reactive power (P, Q):
where, Vn:
In:
CTr:
VTr:
For example, in Vn=110V, In=1A, CTr=2000, VTr=2000, we can have coefficient 2.23942E-6.
(5) Frequency (f):
where, fr:
For example, in fr=50Hz, we can have coefficient 68.26666667.
Coefficient=
Vn
×VTr×In×CTr×2.4
⁄
√ 3
Secondary phase-phase voltage rating
Secondary current rating
CT ratio
VT ratio
Coefficient=
fr×1.2
System frequency
- 1125 -
4096
4096
6F2T0207 (0.01)
GRE200 (5,6)