ABB Relion 670 series Product Manual page 44

Line distance protection REL670 ANSI
Pre-configured
Product version: 1.2
Impedance protection
Table 24. Full-scheme distance protection, Mho characteristic ZMHPDIS (21)
Function
Number of zones with selectable
directions
Minimum operate current
Positive sequence impedance,
phase-to-ground loop
Positive sequence impedance
angle, phase-to-ground loop
Reverse reach, phase-to-ground
loop (Magnitude)
Magnitude of ground return
compensation factor KN
Angle for ground compensation
factor KN
Dynamic overreach
Timers
Operate time
Reset ratio
Reset time
44
Range or value
with selectable direction
(10–30)% of I
Base
(0.005–3000.000) W/phase
(10–90) degrees
(0.005–3000.000) Ω/phase
(0.00–3.00)
(-180–180) degrees
<5% at 85 degrees measured
with CVT's and 0.5<SIR<30
(0.000-60.000) s
20 ms typically (with static
outputs)
105% typically
30 ms typically
1MRK 506 317-BUS A
Accuracy
-
-
± 2.0% static accuracy
Conditions:
Voltage range: (0.1-1.1) x V
n
Current range: (0.5-30) x I
n
Angle: at 0 degrees and 85 degrees
-
± 0.5% ± 10 ms
-
-
-
ABB