en07000005_ansi.vsd
Imin > 0.10 IBase
Vcos
j
< 0.92 VBase
0.2
£
Slip.Freq.
£
8 Hz
AND
d
³
startAngle
AND
PICKUP
Z cross line ZA - ZC
Z cross line ZC - ZB
AND
AND
ZONE1
ZONE2
Counter
N1Limit
a
b a
³
b
d
£
tripAngle
AND
TRIP1
Counter
N2Limit
a
b a
³
b
AND
TRIP2
OR
TRIP
ANSI07000005 V1 EN
Figure 194:
Simplified logic diagram for pole slip protection PSPPPAM (78)
1MRK505222-UUS C
Section 6
Impedance protection
365
Technical reference manual
Summary of Contents for Relion 670 series
Page 1: ...Relion 670 series Line differential protection RED670 ANSI Technical reference manual...
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