If the
CB configuration
setting is “Tie breaker” and the
CB pow consider
setting is
“Sending end IED”, the network circuit breaker power is same as the calculated
sending-end circuit breaker power.
If the
CB Configuration
setting is “Tie breaker” and the
CB pow consider
setting is
“Receiving end IED”, the network circuit breaker power is same as the calculated
receiving-end CB power.
If two busbars are connected with each other permanently, then the
network circuit breaker between the two busbars can be configured
with the
CB configuration
setting set to “Virtual breaker”. If the
CB
configuration
setting is set to “Virtual breaker”, no connection should
be made at the input side of NCBDCSWI, so that it assumes all the
default values of respective inputs.
In Power monitoring, the network circuit breaker power is zero and the
VIRTUAL_CB
output is “Enable”.
The calculated network circuit breaker power is reported to the Block logic module.
7.6.4.2
Block logic
Depending on various conditions and
CB Pow consider
setting, the load-shed
blocking signal is calculated for bus coupler and tie breaker configuration as shown in
respectively.
1MRS757256 F
Section 7
Power management functions
PML630/Compact Load-Shedding Solution
251
Technical Manual
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