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6.9.3
Setting guidelines
The parameters for the Pole discordance protection CCRPLD (52PD) are set via the local
HMI or PCM600.
The following settings can be done for the pole discrepancy protection.
GlobalBaseSel
: Selects the global base value group used by the function to define (
IBase
),
(
VBase
) and (
SBase
).
Operation
:
Disabled
or
Enabled
tTrip
: Time delay of the operation.
ContactSel
: Operation of the contact based pole discrepancy protection. Can be set:
Disabled
/
PD signal from CB
. If
PD signal from CB
is chosen the logic to detect pole
discrepancy is made in the vicinity to the breaker auxiliary contacts and only one signal is
connected to the pole discrepancy function.
CurrentSel
: Operation of the current based pole discrepancy protection. Can be set:
Disabled
/
CB oper monitor
/
Continuous monitor
. In the alternative
CB oper monitor
the
function is activated only directly in connection to breaker open or close command
(during 200 ms). In the alternative
Continuous monitor
function is continuously activated.
CurrUnsymPU
: Unsymmetrical magnitude of lowest phase current compared to the
highest, set in % of the highest phase current.
CurrRelPU
: Current magnitude for release of the function in % of
IBase
.
6.10
Broken conductor check BRCPTOC (46)
6.10.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Broken conductor check
BRCPTOC
-
46
6.10.2
Application
Conventional protection functions can not detect the broken conductor condition. Broken
conductor check (BRCPTOC, 46) function, consisting of continuous current
1MRK 511 286-UUS A
Section 6
Current protection
137
Application manual
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