ERL L-PRO 4000, Руководство пользователя

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4 Protection Functions and Specifications
D02706R02.30 L-PRO 4000 User Manual 4-25
Lockout Indication
Lockout indication is provided for the lead and follower breaker. The lead and
follower lockout indication is set for a fixed time delay pickup of the close sig-
nal time (TP) plus 1.0 second. When the recloser goes to the lead lockout con-
dition, the breaker out of service timers are set to zero seconds and
automatically pick up. If the recloser is in the lead lockout state, the logic re-
mains in that state for setting (TD) seconds after the main or auxiliary breaker
is manually closed. The follower lockout condition occurs when the follower
breaker receives a close signal and the breaker remains open. If the recloser is
in the follower lockout state, the logic remains in that state for setting (TD) sec-
onds after the follower breaker is manually closed.
The recloser provides flexibility with lead and follower breaker options. The
lead breaker is in the main or auxiliary position. This allows the user to control
the lead circuit breaker with complete Dead Main Live Auxiliary, Live Main
Dead Auxiliary, Dead Main Dead Auxiliary or Live Main Live Auxiliary su-
pervision (angle limit and voltage limit). The user also has the ability to control
the 79 remotely or locally with external or virtual inputs. The 79 recloser mon-
itors the breaker contact “a” status and automatically moves the follower
breaker into the lead position when the lead breaker is removed from service,
Table 4.10: 79 Recloser Settings
79 Recloser
Enable/Disable
Number of Shots 1 to 4
First Reclose (T1) 0.1 to 999.9 seconds
Second Reclose (T2) 1.0 to 999.9 seconds
Third Reclose (T3) 1.0 to 999.9 seconds
Fourth Reclose (T4) 1.0 to 999.9 seconds
Close Time (Tp) 0.1 to 1.0 seconds
Lockout Time (TD) 0.1 to 999.9 seconds
Initiate Reset (TDI) 0.0 to 999.9 seconds
Recloser Mode Main only
Block Reset (TDB) 0.0 to 999.9 seconds
Follower Time (TF) 0.0 to 999.8 seconds
Breaker Out of Service (TC) 0.0 to 999.9 seconds
Follower Sequence Switch
Close after the Recloser Follower Time (TF) On/Off
Close after the Recloser Reset Time (TD) On/Off
Sync Control Enabled/Disable