27
3 4 OX _ 3 0 -16 0 0 rev. B / 1 S CC 3 0 3 01 1 M 0 2 01
1
Switching to available source:
• An anomaly occurs on the source 1
• Override momentary S1 outage delay
• Transfer from S1 to S2 delay
• Pre-transfer signal on
• Pre-transfer S1 to S2 delay
• Transfer switch to the position O (only
with delayed transition I-O-II type and
at least one phase exists in source 1)
• Center-Off delay (only with delayed
transition I-O-II type, delay is zero when
all phases are missing in source 1)
• Transfer switch to the position II
(source 2)
• Post-transfer S1 to S2 delay
• Pre-transfer signal off
Retransfer steps following anomaly in the
source functioning:
• The source 1 is restored
• An anomaly occurs on the source 2
• Transfer from S2 to S1 delay
• Pre-transfer signal on
• Pre-transfer S2 to S1 delay
• Transfer switch to the position O (only
with delayed transition I-O-II type and
at least one phase exists in source 2)
• Center-Off delay (only with delayed
transition I-O-II type, delay is zero when
all phases are missing in source 2)
• Transfer switch to the position I
(source 1)
• Post-transfer S2 to S1 delay
• Pre-transfer signal off
2.5.1.3
No source Priority (Generator
and load shed usage disabled)
Summary of Contents for TruONE ATS
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