ABB SDCS-POW-4 After sales service is provided for the control card of the power supply device

Description

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Automatic Transfer Switches ATS
The ATS (Automatic Transfer Switch) is a network-unit transfer device used in installations where switching from the main power
line to an emergency line is required in order to ensure that power is supplied to the loads in the case of power abnormalities
from the main line.
These devices are able to control the entire transfer procedure automatically, but also offer commands for performing the
procedure manually. In the event of anomalies in the main line voltage, the opening of the main line circuit-breaker, the starting
of the generator set (if present) and the closing of the emergency line are activated according to the parameters set by the user.
In the same way, when the main line returns to normal, the reverse transfer procedure is performed automatically.
The new generation of ATSs (ATS021 and ATS022) offers the most advanced and complete solution for ensuring service
continuity. The ATS021 and ATS022 devices can be used with all automatic circuit-breakers and switch-disconnectors of the
Tmax XT family.
The ATS021 and ATS022 devices have been designed to be self-powered. ATS022 is also designed for the connection of an
auxiliary supply, which enables the use of further functions.
The ATS021 and ATS022 devices carry out control of both power supply lines and analyze:
– phase imbalance;
– frequency imbalance;
– phase loss.
In addition to the standard control functions, the ATS022 unit also permits:
– the priority line to be selected;
– a third circuit-breaker to be controlled;
– the device to be integrated into a supervision system with Modbus communication (auxiliary supply needed);
– parameters to be read and set, and measurements and alarms to be displayed by means of a graphical display.
Typical applications are: supply of UPS (Uninterrupted Power Supply) units, operating rooms and primary hospital services,
emergency power for civil buildings, airports, hotels, databases and telecommunication systems and power supply of industrial
lines in continuous processes.
For correct configuration, each circuit-breaker connected to the ATS021 or ATS022 device must be fitted with the following
accessories:
– mechanical interlock;
– motorized control of opening and closing ;
– contact for signalling status (open / closed) and contact for signalling tripping;
– contact for signalling circuit-breaker racked in (for withdrawable circuit-breaker)