Toshiba GR 200 Series, Инструкция по эксплуатации

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6F2S1915 (0.46)
GRZ200 (Soft 031 & 032)
- 61 -
instruction of this function separately. (See Chapter Relay application: Distance carrier
command protection .)
For the operation, the user should set
On
for the scheme switches [
ZCS-EN
] and [
ZCG-
EN
], respectively.
(i)
ZS command protection
Figure 2.1-33 and Figure 2.1-34 show the ZS characteristic of the command protection. You can
find the Mho or the Quad characteristic; and you can select its characteristic when you place
the set of
Mho
or
Quad
for the scheme switch [
ZS-Chara
].
As shown in Figure 2.1-33, if you require placing an element in the Mho characteristic in
forward direction (ZCSF), you should place the reach setting of the ZCSF for settings [
ZCSF-
Mho.Reach
] and [
ZCSF-Mho.Angle
] both. On the other hand, when you need to prescribe the
reach setting of the ZCSF in reactance X, you should place its setting value for setting [
ZCSF-
X.Reach
] with a set of
On
being placed for scheme switch [
ZCSF-MhoX.EN
]. You can also
prescribe resistive elements as shown on right and left side with settings [
ZCSF-R.Reach
] and
[
ZCSF-R.Angle
]; the resistive elements are applicable when you place a set of
On
for scheme
switch [
ZCSF-MhoR.EN
].
On the other hand, as shown in Figure 2.1-34, when you require placing an element in
the Quad characteristic in forward direction, you should place the reach of the ZCSF with
setting [
ZCSF-X.Reach
]. You can also place resistive elements, right side and left side in the
figure with setting [
ZCSF-R.Reach
] and [
ZCSF-R.Angle
]. The resistive elements are
symmetrical and the right side is placed across the origin from the left side. Additionally, you
can place a directional element—as shown with a bottom line—with setting
[ZCSF-DR.Angle
].
The same holds true for an element in the Mho characteristic in reverse direction (ZCSR) and
you can place the ZCSR with settings and scheme switches:
for the Mho, [
ZCSR-Mho.Reach
], [
ZCSR-Mho.Angle
], [
ZCSR-X.Reach
] [
ZCSR-
R.Reach
], [
ZCSR-R.Angle
], [
ZCSR-MhoX.EN
] and [
ZCSR-MhoR.EN
]
and
for the Quad, [
ZCSR-X.Reach
], [
ZCSR-R.Reach
], [
ZCSRF-R.Angle
], and [
ZCSR-
DR.Angle
].
You should place a set of
Block
for setting [
ZCSF-PSBBlk
] because the operation of the ZCSF
should stop when the power swing is detected. You should place a set of
Non
for the setting
when you require the ZCSF operation keeping in the power swing detection.