IAmpComp5, IAmpComp30, IAmpComp100
UAmpComp5, UAmpComp30, UAmpComp100
IAngComp5, IAngComp30, IAngComp100
The angle compensation is given as difference between current and voltage angle errors.
The values are given for operating points 5, 30 and 100% of rated current/voltage. The values
should be available from instrument transformer test protocols.
8.13
Broken conductor check BRCPTOC
SEMOD171761-1 v3
8.13.1
Identification
SEMOD172362-2 v2
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Broken conductor check
BRCPTOC
-
46
8.13.2
Application
SEMOD171858-5 v3
Conventional protection functions can not detect the broken conductor condition. Broken
conductor check (BRCPTOC) function, consisting of continuous current unsymmetrical check
on the line where the IED connected will give alarm or trip at detecting broken conductors.
8.13.3
Setting guidelines
SEMOD171866-5 v4
Broken conductor check BRCPTOC must be set to detect open phase/s (series faults) with
different loads on the line. BRCPTOC must at the same time be set to not operate for
maximum asymmetry which can exist due to, for example, not transposed power lines.
All settings are in primary values or percentage.
Set
IBase (given in GlobalBaseSel) to power line rated current or CT rated current.
Set minimum operating level per phase
IP> to typically 10-20% of rated current.
Set the unsymmetrical current, which is relation between the difference of the minimum and
maximum phase currents to the maximum phase current to typical
Iub> = 50%.
Note that it must be set to avoid problem with asymmetry under minimum
operating conditions.
Set the time delay
tOper = 5 - 60 seconds and reset time tReset = 0.010 - 60.000 seconds.
Section 8
1MRK 505 343-UEN B
Current protection
460
Application manual
Summary of Contents for Relion 670 series
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