Toshiba GR200 Series Instruction Manual page 137

Va = ( R
In the relay, the voltage is compensated independently for resistance and reactance
components as shown in equation (2.10-33) instead of equation (2.10-32).
VaR + jVaX = R1( IaR +
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
) Ia +  ( R −R
+ j X
1 1 0
+ ( R
+ j X
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100
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100
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100
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3
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100
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100
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0mR
3
6F2S1914 (0.49)
(2.10-33)
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1
0X
(2.10-34)
GRL200 (Soft 033 & 037)