G
CB1
CB2
CB3
PL1
PL2
PL3
PL4
NPL
TR1
normal
line
CB1 CB2
GS1
stand by
line
ATS
G
non-priority
load (NPL)
priority
load (PL)
CB3
G
CB2CB1
CB3
NPL
CB2CB1
CB3
NPL
10 SACE Tmax Moulded-case circuit-breakers | ABB ABB | SACE Tmax Moulded-case circuit-breakers 11
2
2
2
2
A single family of moulded-case circuit-breakers up to 3200 A
Automatic network-generator transfer solutions
1
1
ATS022
The ATS022 device monitors both the supply lines and ana-
lyzes phase, frequency imbalance and phase loss. In addiction
to the standard control functions, ATS022 allows you to: select
the priority line, control a third circuit-breaker, integrate the
device into a supervision system with Modbus communication,
read and enter the parameters, display measurements and
alarms using a graphic display.
T7 M (CB1) and T7 M (CB2) Interlocked
XT4 (CB3) for disconnection
Non-priority loads (NPL)
To achieve a correct configuration, each circuit-breaker con-
nected to the ATS must be
accessorized with:
• mechanical interlock;
• motor operator for opening and closing;
• key lock against sole manual operation for MOE motor
operators;
• state (open/closed) and tripped contact signalling contact;
• connected contact (for the withdrawable circuit-breaker
version).
The ATS (Automatic Transfer Switch) is the network-generator transfer unit used in installations
where switching the main power line to an emergency one is required in order to ensure power
supply to the loads in the case of anomalies in the main line.
The new generation of ATS (ATS021 and ATS022) offers the most advanced and complete so-
lutions to guarantee service continuity. The ATS021 and ATS022 can be used both with all the
circuitbreakers in the SACE Tmax XT family and with the switch-disconnectors. Reliable, safe
and smart, the new ATS family conforms to international standards, is easy to configure and is
suitable for all applications.
Fully coordinated systems are ensured, since ATS integrates perfectly with the entire range of
ABB circuit-breakers and switch-disconnectors.
Multi-function logic meets all requirements:
n standard switching logic that allows normal and emergency lines to be monitored, com-
mands to be transmitted to the generator and verification that the circuit-breakers have
been switched (ATS021, ATS022);
n control of the two lines, both of which are non-priority (ATS021, ATS022);
n control of a third, bus-tie breaker (ATS022);
n non-priority load disconnection management (ATS022).
LINE-GENERATOR
If the main network is
lost, the AST021 and
ATS022 devices switch
to the emergency line
equipped with a GenSet.
NON-PRIORITY LOAD
CONTROL USING A
BUS-TIE
If the main network is
lost, the ATS022 device
switches to a second line used
as a standby by disconnecting
non-priority loads (NPL) via a
bus-tie.
NON-PRIORITY LOAD
CONTROL ON THE
OUTGOING LINE
If the main network is
lost, the ATS022 device
switches to a second line
used as a standby by
disconnecting non-priority
loads (NPL) branched from
the main busbar.
LINE-LINE
If the main network is
lost, the AST021 and ATS022
devices switch
to a second line used as a
standby. Selection of the
priority line from the two
available lines is allowed by
ATS022.
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