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2. Explanation of abbreviations and terms
2. Explanation of abbreviations and terms
2.1. General information
ATS:
Automatic Transfer Switch; automatic switching device.
ATS022:
ATS of the ATS02x series, version with display and Modbus communication.
CB:
Circuit Breaker; low voltage automatic Circuit Breaker.
CB1:
CB on line LN1.
CB2:
CB on line LN2.
CB3:
CB for Bus Tie, NPL and NPL BUS TIE operating modes.
LN1:
Power supply line No.1.
LN2:
Power supply line No.2.
Bus Tie:
Operating mode with busbar tie circuit breaker.
NPL:
Operating mode with non priority control circuit breaker.
NPL BUS TIE:
Operating mode with non priority control circuit breaker for non priority loads control.
Modbus RTU:
Communication protocol.
2.2. Times
NOTE: All the details of the times and switching logics are described in the Chapters concerned.
TS:
- Opening delay of main line CB, after detection of fault in mains (generator is not in
use).
- Generator start delay, after detection of fault in mains (generator in use).
TCE:
Closing delay of CB2 of line LN2.
TBS:
Opening delay of emergency line CB, after detection of stabilised voltage on main line.
TCN:
Closing delay of CB1 of line LN1.
TGOFF:
Generator switching off delay, after closure of main line CB.
TC:
Delay in opening and closing of CB3 in Bus Tie application.
TL
Delay in activation of outlet DO7, after detection of the fault on both lines LN1 and
LN2.
1SDH000760R0002
Installation and operating instructions, ATS022
5
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