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IEC05000465 V2 EN-US
Figure 291: Typical connection for STBPTOC in 1½-breaker arrangement.
8.9.3
Setting guidelines
M12909-3 v5
The parameters for Stub protection STBPTOC are set via the local HMI or PCM600.
The following settings can be done for the stub protection.
GlobalBaseSel: Selects the global base value group used by the function to define (IBase),
(
UBase) and (SBase).
Operation: Off/On
ReleaseMode: This parameter can be set Release or Continuous. With theRelease setting the
function is only active when a binary release signal RELEASE into the function is activated. This
signal is normally taken from an auxiliary contact (normally closed) of the line disconnector
and connected to a binary input RELEASE of the IED. With the setting
Continuous the function
is activated independent of presence of any external release signal.
I>: Current level for the Stub protection, set in % of IBase. This parameter should be set so that
all faults on the stub can be detected. The setting should thus be based on fault calculations.
t: Time delay of the operation. Normally the function shall be instantaneous.
8.10
Pole discordance protection CCPDSC
IP14516-1 v5
Section 8
1MRK 505 343-UEN B
Current protection
448
Application manual
Summary of Contents for Relion 670 series
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