6.8.8
Technical data
M12350-1 v12
Table 92:
STBPTOC technical data
Function
Range or value
Accuracy
Operating current
(5-2500)% of
IBase
±
1.0% of I
r
at I ≤ I
r
±
1.0% of I at I > I
r
Reset ratio
> 95% at (50-2500)% of
IBase
-
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s
±
0.2% or
±
30 ms
whichever is greater
Operate time, start at 0 to 2 x I
set
Min. = 10 ms
Max. = 20 ms
-
Reset time, start at 2 x I
set
to 0
Min. = 10 ms
Max. = 20 ms
-
Critical impulse time
10 ms typically at 0 to 2 x I
set
-
Impulse margin time
15 ms typically
-
6.9
Broken conductor check BRCPTOC
SEMOD171761-1 v3
6.9.1
Identification
SEMOD172362-2 v2
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Broken conductor check
BRCPTOC
-
46
6.9.2
Functionality
SEMOD171805-5 v6
Conventional protection functions cannot detect the broken conductor condition.
Broken conductor check BRCPTOC function, consisting of continuous phase
selective current unsymmetrical check on the line where the IED is connected,
gives an alarm or trip at detecting broken conductors.
6.9.3
Function block
SEMOD171906-11 v4
IEC07000034-2-en.vsd
BRCPTOC
I3P*
BLOCK
BLKTR
TRIP
START
IEC07000034 V2 EN-US
Figure 62:
BRCPTOC function block
Section 6
1MRK 505 384-UEN A
Current protection
158
Breaker protection REQ650 2.2 IEC
Technical manual
Summary of Contents for impreza 2017
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