Load Blinder; 21Lb-3P; 21Lb-1P; Control & Logic - Siemens Argus 7SR21 Technical Manual

3.10.8.

Load Blinder

3.10.8.1.

21LB-3P

Description
Gn 21LB-3P Angle +ve
Selects the boundary region.
Gn 21LB-3P Angle -ve
Selects the boundary region.
Gn 21LB-3P Impedance
Selects the impedance of the region.
Gn 21LB-3P VPPS
Sets the level of 21LB-3P VPPS setting
Gn 21LB-3P INPS
Sets the level of 21LB-3P INPS setting.
3.10.8.2.

21LB-1P

Description
Gn 21LB-1P Angle +ve
Selects the boundary region.
Gn 21LB-1P Angle -ve
Selects the boundary region.
Gn 21LB-1P Impedance
Selects the impedance of the region.
Gn 21LB-1P VPPS
Sets the level of 21LB-1P VPPS setting
Gn 21LB-1P IZPS
Sets the level of 21LB-1P ZNPS setting.
3.11. Control & Logic
3.11.1.

Autoreclose Prot'n

Description
Gn 79 P/F Inst Trips
Selects which phase fault protection elements are classed as
Instantaneous elements and start an autoreclose sequence.
These will be blocked from operating during Delayed
autoreclose sequences. See autoreclose section of manual for
detail of what elements can cause only Delayed protection to
be used.
Gn 79 E/F Inst Trips
Selects which earth fault protection elements are classed as
Instantaneous elements and start an autoreclose sequence.
These will be blocked from operating during Delayed
autoreclose sequences. See autoreclose section of manual for
detail of what elements can cause only Delayed protection to
be used.
Gn 79 SEF Inst Trips
Selects which sensitive earth fault protection elements are
classed as Instantaneous elements and start an autoreclose
sequence. These will be blocked from operating during
Delayed autoreclose sequences. See autoreclose section of
manual for detail of what elements can cause only Delayed
protection to be used.
Unrestricted ©2018 Siemens Protection Devices Limited
Range
5 degrees to 85 degrees
5 degrees to 85 degrees
1, 1.1,...50, 50.5, 51...100 Ohms
1, 1.5 ...110 V
0.05, 0.1 ... 0.45, 5
Range
5 degrees to 85 degrees
5 degrees to 85 degrees
1, 1.1,...50, 50.5, 51...100 Ohms
1, 1.5 ...110 V
0.05, 0.1 ... 0.45, 5
Range
Combination of ( 51-1, 51-2, 51-3,
51-4, 50-1, 50-2, 50-3, 50-4 )
Combination of ( 51N-1, 51N-2,
51N-3, 51N-4, 50N-1, 50N-2, 50N-
3, 50N-4, 51G-1, 51G-2, 51G-3,
51G-4, 50G-1, 50G-2, 50G-3, 50G-
4 )
Combination of ( 51SEF-1, 51SEF-
2, 51SEF-3, 51SEF-4, 50SEF-1,
50SEF-2, 50SEF-3, 50SEF-4 )
7SR220 Settings Guide
Default
20 Degrees
20 Degrees
10 Ohms
50 V
0.5 xI
Default
20 Degrees
20 Degrees
10 Ohms
50 V
0.5 xI
Default
--------
----------------
--------
Page 43 of 107