Toshiba GR 200 Series, Инструкция по эксплуатации

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6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 37 -
Z1S-Mho.Reach
X
R
Z1S-Mho.Angle
Z1S-R.Angle
a. Z1S Mho element
Z1G-Mho.Reach
X
R
Z1G-Mho.Angle
Z1G-R.Angle
Z1G-R.Reach (in the right)
b. Z1G MHO element
Z1G-R.Angle
Z1G-R.Reach (in the left)
Z1S-R.Reach (in the right)
Z1S-R.Reach (in the left)
Z1S-R.Angle
Figure 2.1-11 Z1S Mho element (Zone1 Mho element with Blinders)
(i)-1-2 Mho with reactance characteristic
Figure 2.1-12 (a) and (b) show Z1S MHO element and Z1G MHO element set with
reactance X.
The ZS with the MHO reactance characteristic should be set using the setting [
Z*S-
X.Reach
], when the user set
On
for the scheme switch [
Z*S-MhoX.EN
]. Similarly, ZG
should be set using the setting [
Z*G-X.Reach
], when
On
set for the [
Z*G-MhoX.EN
].
The ‘knee’ function is configured by using the settings [
ZSF-X.GrAngle1
] and [
ZSF-
X.GrAngle2
]. When
On-Adapt
is set for the scheme switch [
ZS-X.GrAngleEN
], the
‘knee’ function operates when power flow is detected.
For the Mho characteristic, a composition component (Z-X) is provided. As shown in
Figure 2.1-12 (a), if Z1S is set with reactance components (X), other components can
be set using impedance components (Z).
A directional reactance element ‘DX’ (left line crossing the originate) can be set by the
settings [
Z*S-DX.Angle
] when
On
set for the [
Z*S-MhoDX.EN
]. Similarly, ZG should
be set using the setting [
Z*G-DX.Angle
] when
On
set for the [
Z*G-MhoDX.EN
].