ABB REL670 Product Manual page 85

Line distance protection REL670 2.2
Product version: 2.2
Table 66. Two step residual overvoltage protection ROV2PTOV
Function
Operate voltage, step 1 - step 2
Absolute hysteresis
Inverse time characteristics for low and
high step, see table 190
Definite time delay low step (step 1) at 0 to
1.2 x U
set
Definite time delay high step (step 2) at 0 to
1.2 x U
set
Minimum operate time
Operate time, start at 0 to 2 x U
Reset time, start at 2 x U
set
Operate time, start at 0 to 1.2 x U
Reset time, start at 1.2 x U
set
Critical impulse time
Impulse margin time
Table 67. Overexcitation protection OEXPVPH
Function
Operate value, start
Operate value, alarm
Operate value, high level
Curve type
Minimum time delay for inverse
function
Maximum time delay for inverse
function
Alarm time delay
ABB
Range or value
(1.0-200.0)% of
(0.0–50.0)% of
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
Min. = 15 ms
set
Max. = 30 ms
to 0 Min. = 15 ms
Max. = 30 ms
Min. = 20 ms
set
Max. = 35 ms
to 0 Min. = 5 ms
Max. = 25 ms
10 ms typically at 0 to 2 x U
15 ms typically
Range or value
(100–180)% of ( UBase /f
(50–120)% of start level
UBase /f
(100–200)% of (
IEEE or customer defined
×
(0.18 ) k
=
IEEE t :
-
2
( M 1)
EQUATION1319 V1 EN
where M = (E/f)/(Ur/fr)
(0.000–60.000) s
(0.00–9000.00) s
(0.00–9000.00)
Accuracy
UBase ± 0.5% of U
± 0.5% of U at U > U
UBase ± 0.5% of U
± 0.5% of U at U > U
See table
± 0.2% or ± 45 ms whichever is greater
± 0.2% or ± 45 ms whichever is greater
± 0.2% or ± 45 ms whichever is greater
-
-
-
-
-
set
-
Accuracy
) ±0.5% of U
rated
±0.5% of U
r
±0.5% of U at U > U
) ±0.5% of U
rated
±5.0 % or ±45 ms, whichever is greater
(Equation 2)
±1.0% or ±45 ms, whichever is greater
±1.0% or ±45 ms, whichever is greater
±1.0% or ±45 ms, whichever is greater
1MRK 506 372-BEN -
at U ≤ U
r r
r
at U ≤ U
r r
r
190
at U ≤ U
r
r
85