ABB RELION 630 Series Technical Manual page 256

Section 7
Power management functions
250
Bus bar
GUID-A6CA8B40-4791-4E4E-93B7-1C73D8B82943 V2 EN
Figure 141: Bus coupler configuration
Bus bar
Bus bar
GUID-96DFC4D7-7235-411B-A843-15A2922DE558 V2 EN
Figure 142: Tie circuit breaker configuration
This module converts the units of SND_CB_POWER (sending-end circuit breaker
power) and RCV_CB_POWER (receiving-end circuit breaker power) inputs in kW
based on the Send Pow convention and Rcv Pow convention settings as shown in
290.
Table 290: Calculation of sending/receiving-end circuit breaker output
Setting
Send Pow convention
Rcv Pow convention
If the CB configuration setting is "Bus coupler", the network circuit breaker power is
same as the calculated sending-end circuit breaker power.
Bus bar
Sending end circuit
breaker
Sending end circuit
breaker
Receiving end circuit
breaker
Values
Positive W
Negative W
Positive kW
Negative kW
Positive MW
Negative MW
Positive W
Negative W
Positive kW
Negative kW
Positive MW
Negative MW
PML630/Compact Load-Shedding Solution
1MRS757256 F
Table
Calculated sending-end CB
power/receiving-end CB power
SND_CB_POWER × [0.001]
SND_CB_POWER × [-0.001]
SND_CB_POWER × [1]
SND_CB_POWER × [-1]
SND_CB_POWER × [1000]
SND_CB_POWER × [-1000]
RCV_CB_POWER × [0.001]
RCV_CB_POWER × [-0.001]
RCV_CB_POWER × [1]
RCV_CB_POWER × [-1]
RCV_CB_POWER × [1000]
RCV_CB_POWER × [-1000]
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