ABB REG670 Product Manual page 82

Generator protection REG670 2.2 and Injection equipment REX060,
REX061, REX062
Product version: 2.2.1
Table 70. 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 182
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 to 0
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 71. 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
82
Range or value
(1.0-200.0)% of
(0.0–50.0)% of UBase
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
Min. = 15 ms
set
Max. = 30 ms
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
UBase /f
(100–180)% of (
(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-US
where M = (E/f)/(Ur/fr)
(0.000–60.000) s
(0.00–9000.00) s
(0.00–9000.00)
M13317-2 v14
Accuracy
UBase ± 0.5% of U
± 0.5% of U at U > U
± 0.5% of U
± 0.5% of U at U > U
See table 182
± 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
-
M13338-2 v11
Accuracy
) ±0.5% of U
rated
±0.5% of U at U ≤ 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 502 074-BEN A
at U ≤ U
r r
r
at U ≤ U
r r
r
r
r
ABB