Instruction manual – AP901S Arc Protection Unit
22 (43
)
A1027A
Logic Scheme 10
The AP901S scheme 10 is utilized in selective arc protection solution. S2 is used for
monitoring the incoming feeder breaker compartment. S3 monitors reserve busbar; S4
monitors the main busbar compartment. The contact T1 is responsible for tripping section
circuit breaker. T2 is responsible for tripping coupler circuit breaker. BI1 and BI2 are
responsible for recognizing the incoming circuit breaker position. BI3 receives overcurrent
information from the AP910P of incoming feeder. BI4, BI5 and BI6 are used for sending
light information from different location of the busbars. BO1, BO2 and BO3 send arc fault
information to incoming feeder units and intermediate units. CBFP feature is applied into
this scheme.
Figure 3-10: AP901S logic scheme 10
Summary of Contents for AP901S
Page 1: ......
Page 43: ...Instruction manual AP901S Arc Protection Unit 43 43 A1027A ...