Distance Protection With Polygonal Tripping Characteristic; Method Of Operation - Siemens siprotec 7SA6 User Manual

Functions
F.No. Alarm
3781 Dis.TimeOut Tfw
3782 Dis.TimeOut Trv
3801 Dis.Gen. Trip
3802 Dis.Trip 1pL1
3803 Dis.Trip 1pL2
3804 Dis.Trip 1pL3
3805 Dis.Trip 3p
3811 Dis.TripZ1/1p
3823 DisTRIP3p. Z1sf
3824 DisTRIP3p. Z1mf
3813 Dis.TripZ1B1p
3825 DisTRIP3p.Z1Bsf
3826 DisTRIP3p Z1Bmf
3816 Dis.TripZ2/1p
3817 Dis.TripZ2/3p
3818 Dis.TripZ3/T3
3821 Dis.TRIP 3p. Z4
3822 Dis.TRIP 3p. Z5
3850 DisTRIP Z1B Tel
3819 Dis.Trip FD->
3820 Dis.Trip <->
6.2.4

Distance Protection with Polygonal Tripping Characteristic

6.2.4.1

Method of Operation

Operating
Polygons
6-54
DistanceTime Out Forward PICKUP
DistanceTime Out Reverse/Non-dir. PICKUP
Distance protection: General trip
Distance TRIP command - Only Phase L1
Distance TRIP command - Only Phase L2
Distance TRIP command - Only Phase L3
Distance TRIP command Phases L123
Distance TRIP single-phase Z1
DisTRIP 3phase in Z1 with single-ph Flt.
DisTRIP 3phase in Z1 with multi-ph Flt.
Distance TRIP single-phase Z1B
DisTRIP 3phase in Z1B with single-ph Flt
DisTRIP 3phase in Z1B with multi-ph Flt.
Distance TRIP single-phase Z2
Distance TRIP 3phase in Z2
Distance TRIP 3phase in Z3
Distance TRIP 3phase in Z4
Distance TRIP 3phase in Z5
DisTRIP Z1B with Teleprotection scheme
Dist.: Trip by fault detection, forward
Dist.: Trip by fault detec, rev/non-dir.
A tripping characteristic in the shape of a polygon is defined for each of the distance
zones. In total, there are five independent zones and one additional controlled zone
for each fault impedance loop. In Figure 6-29 the shape of a polygon is illustrated. The
first zone is shaded and forward directional, the third zone is reverse directional.
In general, the polygon is defined by means of a parallelogram which intersects the
axes with the values R and X as well as the tilt ϕ
und ϕ
R may be used to cut the area of the load impedance out of the polygon.
Load Load
The axial coordinates can be set individually for each zone; ϕ
common for all zones. The parallelogram is symmetrical with respect to the origin of
the R–X–coordinate system; the directional characteristic however limits the tripping
range to the desired quadrants (refer to "Direction Determination" below).
Comments
. A load trapezoid with the setting
Line
, R
Line Load
C53000-G1176-C133-1
und ϕ
are
Load
7SA6 Manual