Technical Data - ABB Relion Technical Manual

1MRK 502 048-UUS A
9.3.8
9.4
9.4.1
9.4.2
Technical manual

Technical data

Table 171: ROV2PTOV (59N) technical data
Function
Operate voltage, step 1
Operate voltage, step 2
Reset ratio
Inverse time
characteristics for low and
high step, see table 579
Definite time setting, step
1
Definite time setting, step
2
Minimum operate time for
step 1 inverse
characteristic
Operate time, pickup
function
Reset time, pickup
function
Critical impulse time
Impulse margin time
Overexcitation protection OEXPVPH (24)
Identification
Function description
Overexcitation protection
Functionality
When the laminated core of a power transformer or generator is subjected to a magnetic
flux density beyond its design limits, stray flux will flow into non-laminated components
Range or value
VBase
(1-200)% of
(1–100)% of VBase
> 98%
-
(0.00–6000.00) s
(0.000–60.000) s
(0.000-60.000) s
30 ms typically at 0 to 2 x V
set
40 ms typically at 2 to 0 x V
set
10 ms typically at 0 to 1.2 xV
set
15 ms typically
IEC 61850
identification
OEXPVPH
Section 9
Voltage protection
Accuracy
± 0.5% of V at V < V
n
± 0.5% of V at V > V
± 0.5% of V at V < V
n
± 0.5% of V at V > V
-
See table 579
± 0.5% ± 25 ms
± 0.5% ± 25 ms
± 0.5% ± 25 ms
-
-
-
-
IEC 60617 ANSI/IEEE C37.2
identification device number
24
U/f >
SYMBOL-Q V1 EN
n
n
n
n
299