Setting - Toshiba GRL100-701B Instruction Manual

2.17.5 Setting

Fault location using the local and remote end data
The setting items necessary for the fault location and their setting ranges are shown in the table
below.
When setting the line impedance, one of the following methods can be selected.
Inputting phase impedances:
The self-impedances Z aa , Z bb and Z cc and mutual impedances Z ab , Z bc and Z ca are input
individually using the expression of the resistive components R ∗∗ and reactive components X ∗∗ .
Inputting positive-sequence impedances:
This can be done provided that Z aa
positive-sequence impedance is input using the expression of the resistive component R 1
and reactive component X 1 .
The resistive and reactive components are input with the secondary values for the line.
When setting the line impedance, the three-terminal line is divided into three sections. The first
section is from the local terminal to the junction, the second is from the junction to remote
terminal 1 and the third is from the junction to remote terminal 2. The line constants are input for
each section in the same way as the two-terminal application.
Note that remote terminals 1 and 2 are automatically set according to the communication system
setup. Remote terminal 1 is a terminal to which local communication port 1 is linked and remote
terminal 2 is a terminal to which local communication port 2 is linked.
Item Range
Fault locator ON/OFF
Line data
Section 1
0.00 - 199.99 Ω
1R 1
(0.0 - 999.9 Ω
1X 1 0.00 - 199.99 Ω
(0.0 - 999.9 Ω
1Line 0.0 - 399.9 km
or
1R aa 0.00 - 199.99 Ω
1X aa (0.0 - 999.9 Ω
1R bb
1X bb
1R cc
1X cc
1R ab
1X ab
1R bc
1X bc
1R ca
1X ca
1Line 0.0 - 399.9 km
Z bb Z cc and Z ab
≒ ≒
Step Default
OFF
0.10 Ω 0.20 Ω
0.1 Ω 1.0 Ω)
(*)
0.10 Ω 2.00 Ω
0.1 Ω 10.0 Ω)
(*)
0.1 km 50.0 km
0.10 Ω 0.21 Ω
0.1 Ω) (1.1 Ω)
0.01 Ω
(0.1 Ω)
2.10 Ω
(10.5 Ω)
0.10 Ω
(0.5 Ω)
0.1 km 50.0 km
 154 
Z bc Z ca . The
≒ ≒
Remarks
Line length from local terminal to junction
Line length from local terminal to junction
6 F 2 S 0 8 5 0