Toshiba GRL100-701B, Instruction Manual

Page: 50 / 473


49

6 F 2 S 0 8 5 0
is always output. The condition for the UVC two-phase operation is to inhibit the Z1S from
overreaching in the event of a single-phase earth fault.
The UVC element is applied to the zone 1 distance elements.
EFL is an earth fault detection element, and UVPWI is a phase undervoltage relay to provide
countermeasures for overreaching of a leading-phase distance element at positive phase weak
infeed condition. These elements are applied to all earth fault distance elements. (Refer to
Appendix A.) The UVPWI can be disabled by the scheme switch [UVPWIEN].
2.3.1.3 Setting
The following shows the necessary distance protection elements and their setting ranges.
Element Range Step Default Remarks
Phase fault protection
ZS-C Mho - Quad Mho Characteristic selection
Z1S
0.01 - 50.00
Ω
0.01
Ω
1.60
Ω Z1 reach
(0.10 - 250.00
Ω
0.01
Ω
8.00
Ω
) (*1)
Z1S
θ
1
0° - 45° 1° 0° Gradient of reactance element
Z1S
θ
2
45° - 90° 1° 90°
BFR1S
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω Forward right blinder reach for Z1
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
Z2S
0.01 - 50.00
Ω
0.01
Ω
3.00
Ω Z2 reach
(0.10 - 250.00
Ω
0.01
Ω
15.00
Ω
)
BFR2S
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω Forward right blinder reach for Z2
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
Z3S
0.01 - 50.00
Ω
0.01
Ω
6.00
Ω Z3 reach
(0.1 – 250.0
Ω
0.1
Ω
30.0
Ω
)
Z3S
θ
(*2)
45 - 90° 1° 85° Characteristic angle of mho element
ZBS
θ
(*3)
0 - 45° 1° 5° Angle of directional element
BFRS
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω Forward right blinder reach for Z3
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
BFLS
θ 90° - 135° 1° 120° Forward left blinder angle
ZRS
0.01 - 50.00
Ω
0.01
Ω
4.00
Ω ZR reach
(0.1 – 250.0
Ω
0.1
Ω
20.0
Ω
)
Z4S
0.01 - 50.00
Ω
0.01
Ω
8.00
Ω Z4 reach
(0.1 – 250.0
Ω
0.1
Ω
40.0
Ω
)
BRRS
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω Reverse right blinder reach
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
TZ1S 0.00 - 10.00 s 0.01 s 0.00 s Zone 1 timer
TZ2S 0.00 - 10.00 s 0.01 s 0.30 s Zone 2 timer
TZ3S 0.00 - 10.00 s 0.01 s 0.40 s Zone 3 timer
TZRS 0.00 - 10.00 s 0.01 s 0.60 s Zone R timer
Earth fault protection
ZG-C Mho - Quad Mho Characteristic selection
Z1G
0.01 - 50.00
Ω
0.01
Ω
1.60
Ω Z1 reach
(0.10 - 250.00
Ω
0.01
Ω
8.00
Ω
)
Z1G
θ
1
0° - 45° 1° 0° Gradient of reactance element
Z1G
θ
2
45° - 90° 1° 90°
BFR1G
0.10 - 20.00
Ω
0.01
Ω
5.10
Ω Forward right blinder reach for Z1
(0.5 - 100.0
Ω
0.1
Ω
25.5
Ω
)
www
. ElectricalPartManuals
. com