Technical Data - ABB REL650 series Technical Manual

Section 6
Impedance protection
6.6.7
174
VA
VB
VC
VCVA
Voltage and
IN
VN
Discrimination
PU27PN
PU27PP
Pickup_N
3VOPU
OperMode
RELAG
Phase Preference
RELBG
PHSEL
BLOCK
ANSI10000189 V1 EN
Figure 81: Simplified block diagram for Phase preference logic

Technical data

Table 59: PPLPHIZ technical data
Function
Operate value, phase-to-phase
and phase-to-neutral
undervoltage
Reset ratio, undervoltage
Operate value, residual voltage
Reset ratio, residual voltage
Operate value, residual current
Reset ratio, residual current
Timers
Operating mode
Current
Detect Cross-
Country fault
Evaluation
Range or value
(10.0 - 100.0)% of VBase
< 105%
(5.0 - 300.0)% of VBase
> 95%
(10 - 200)% of IBase
> 95%
(0.000 - 60.000) s
No Filter, NoPref
Cyclic: 1231c, 1321c
Acyclic: 123a, 132a, 213a, 231a,
312a, 321a
1MRK 506 335-UUS A
PICKUP
AND
ZREL
AND
ANSI10000189-1-en.vsd
Accuracy
± 0,5% of V
n
-
± 0,5% of V
n
-
± 1,0% of I for I < I
n n
± 1,0% of I for I > I
n
-
± 0,5% ± 10 ms
Technical manual