ABB Relion 670 series, Руководство по установке и пусконаладке

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ZAngPE
ZPE
1
p1
p2
ZPE
2
p3
ZPE
3
Ohm/phase
R
jX
en07000010.vsd
IEC07000010 V2 EN
Figure 89: Proposed test points for phase-to-earth faults
Label Description
ZPE1 The measured impedance for phase-to-earth fault at point 1 (zone reach ZPE) ohm/
phase.
ZAngPE The characteristic angel for phase-to-earth fault in degrees.
ZPE2 and ZPE3 The fault impedance for phase-to-earth fault at the boundary for the zone reach at
point 2 and 3.
Table 29: Test points for phase-to-phase loops L1-L2 (Ohm/Loop)
Test points Set Comments
1 ZPE · cos(ZAngPE) ZPE · sin(ZAngPE)
2 ZPE/2 + ΔR = (ZPE/2) · (1 - cos(ZAngPE)) ZPE/2 · sin(ZAngPE)
3 ZPE/2 - ΔR = ZPE/2 · (1 - cos(ZAngPE)) ZPE/2 · sin(ZAngPE)
Check also in the same way as for phase-to-earth fault for each test point that the
output signals STPE, are activated where x refers to the actual phase to be tested.
After the timer
tPE for the zone has elapsed, also the signals TRIP, TRPE and TRx
shall be activated.
15.5.2 Pole slip protection PSPPPAM
Prepare the IED for verification of settings as outlined in section "Overview" and
section "Preparing for test" in this chapter.
Section 15
1MRK 502 029-UEN A
Verifying settings by secondary injection
162
Installation and commissioning manual