Toshiba GR200 Series Instruction Manual page 68

Va = ( R
In the relay, the voltage is compensated independently for resistance and reactance
components as shown in equation (2.1-33) instead of equation (2.1-32).
VaR + jVaX =
where,
Kxs: compensation factor (Kxs = X0/X1 × 100)
Krs: compensation factor (Krs = R0/R1 × 100)
Kxm: compensation factor (Kxm = Xom/X1 × 100)
Krm: compensation factor (Krm = Rom/R1 × 100)
X: imaginary part of the measured impedance
R: real part of the measured impedance
VaX: imaginary part of phase "a" voltage
VaR: real part of phase "a" voltage
IaX: imaginary part of phase "a" current
IaR: real part of phase "a" current
I : imaginary part of zero-sequence current of the protected line
0X
I : real part of zero-sequence current of the protected line
0R
I : imaginary part of zero-sequence current of the adjacent line
omX
I : real part of zero-sequence current of the adjacent line
omR
 ( R
) Ia +
+ j X
1 1
+ ( R
+ j X
����
�� − ��
0
= R (I +
1 ��
��
�� − �� ����
0 1
+ I +
0
�� ��
1
R1( IaR +
������
100
 3��
+
������
3
������
− 1
100
 3I
+
3
+ jR1( IaX +
������
100
 3I
+
0mX
3
������
− 1
100
 3I
+
3
- 47 -
R  X
) + j ( X
0 1 0
) I
���� ����
�� ��
1 0
I + I ) + ����
0 ����
��
1 1
I )
����
1
������
− 1
100
 3I0R
3
) X1( IaX
������
100
 3I
+
0X 0mX
3
������
− 1
100
 3I
0X
3
) + X1( IaR
������
100
 3I
+
0R 0mR
3
6F2S1915 (0.46)
) I
1 0
(2.1-33)
(����
1
)
(2.1-34)
)
GRZ200 (Soft 031 & 032)