ABB Relion 650 Series Technical Manual page 123

1MRK 506 326-UUS B
VA
ANSI09000123 V1 EN-US
Figure 65: Simplified characteristic for offset mho in reverse direction for A-to-ground fault
5.3.7 Technical data
Table 30: ZMOPDIS (21)Technical data
Function
Number of zones with
selectable directions
Minimum operate current,
phase-to-ground
Minimum operate current,
phase-to-phase
Positive sequence impedance
Reverse positive sequence
impedance
Impedance reach for phase-to-
phase elements
Angle for positive sequence
impedance, phase-to-phase
elements
Reverse reach of phase-to-
phase loop
Magnitude of ground return
compensation factor KN
Angle for ground
compensation factor KN
Table continues on next page
Line distance protection REL650
Technical manual
X
Z
ArgNegRes
f
IB
ZRev
Range or value
5 with selectable direction
(10–30)% of I
(10-30)% of I
(0.005–3000.000) W/phase
(0.005–3000.000) Ω/phase
(0.005–3000.000) Ω/phase
(10–90) degrees
(0.005–3000.000) Ω/phase
(0.00–3.00)
(-180–180) degrees
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R
ArgDir
ANSI09000123-1-en.vsd
Accuracy
-
± 2.0% of I
Base
-13% of set value ± 2.0% of I
Base
± 2.0% static accuracy
Conditions:
Voltage range: (0.1-1.1) x V
Current range: (0.5-30) x I
Angle: at 0 degrees and 85 degrees
Impedance protection
n
n
n
n
Section 5
SEMOD173242-2 v7
117