CHAPTER 5: SETTINGS CONTROL ELEMENTS
F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 5-295
5
BREAKER RESTRIKE 1 HF DETECT — Enables/disables high-frequency (HF) pattern detection when breaker restrike occurs.
High-frequency pattern is typical for capacitor bank, cables, and long transmission lines applications.
BRK RSTR 1 BRK OPEN — Assigns a FlexLogic operand indicating the open position of the breaker. It must be logic “1” when
the breaker is open. It is important to assign either 52 contact with this setting or breaker close command with
BRK RSTR 1
CLS CMD
setting to give clear indication to the relay about breaker status.
BRK RSTR 1 OPEN CMD — Assigns a FlexLogic operand indicating a breaker open command. It must be logic “1” when the
breaker is opened, either manually or from protection logic.
BRK RSTR 1 CLS CMD — Assigns a FlexLogic operand indicating a breaker close command. It must be logic “1” when the
breaker is closed.
Figure 5-162: Breaker restrike logic
5.8.10.4 Incipient fault detector
SETTINGS CONTROL ELEMENTS MONITORING ELEMENTS INCIPIENT FAULT 1(6)
INCIPIENT FAULT 1
INCIPIENT FAULT 1
FUNCTION: Disabled
Range: Disabled, Enabled
INCIPNT FLT 1 BLOCK:
Off
Range: FlexLogic operand
INCIPIENT FAULT 1
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
INCIPIENT FAULT 1
PICKUP: 0.50 pu
Range: 0.10 to 10.00 pu in steps of 0.01
INCIPNT FLT 1 MODE:
Number of counts
Range: Number of counts, Counts per window
INCIPIENT FLT 1 TRIP
COUNTS NUMBER: 2
Range: 1 to 10 in steps of 1
INCIPNT FLT 1 DETECT
WINDOW: 10.00 s
Range: 0.00 to 1000.00 s in steps of 0.01
INCIPIENT FAULT 1
RESET DELAY: 0.100 s
Range: 0.000 to 65.535 s in steps of 0.001
INCIPIENT FAULT 1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
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