The range of accessories of the Tmax and Isomax series is characterised by the completeness of the solutions proposed together with flexibility and facility of use.
The following are available:
- kit for converting a fixed circuit-breaker into the moving part of a plug-in and withdrawable one
- circuit-breaker fixed parts for plug-in and withdrawable circuit breakers
- conversion kit for the connection terminals.
Various accessories are also available:
- Breaking unit
- Trip units
- Front
- Auxiliary contacts - AUX and AUX-E
- Undervoltage release - UVR
- Shunt opening release - SOR
- Terminal covers
- Front for lever operating mechanism - FLD
- Direct rotary handle - RHD
- Stored energy motor operator - MOE
- Key lock - KLF
- Early auxiliary contact – AUE
- Transmitted rotary handle - RHE
- Front terminal for copper cable - FC Cu
- Front extended terminal - EF
- Multi-cable terminal (only for T4) - MC
- Front terminal for copper-aluminium - FC CuAl
- Front extended spread terminal - ES
- Rear orientated terminal - R
- Conversion kit for plug-in/withdrawable versions
- Guide of fixed part in the withdrawable version
- Fixed part - FP
- Auxiliary position contact - AUP
- Phase separators
- PR010T
- TT1
- Racking out crank handle
- Residual current release.
Mechanical interlock between circuit breakers
Tmax T1, T2, T3
The mechanical MIF interlock can be applied on the front of two T1, T2 or T3 circuit-breakers mounted side by side, in either the three-pole or four-pole fi xed version and prevents simultaneous closing of the two circuit-breakers. Fixing is carried out directly on the back plate of the switchboard. The front interlocking plate allows installation of a padlock in order to fi x the position (possibility of locking in the O-O position as well). It is also possible to interlock three circuit-breakers side by side, using the proper plate, thereby making the following interlock combinations: IOO-OIOOOI-OOO. It is incompatible with the front accessories (solenoid operator, rotary handle operating mechanism) and with the residual current releases.
Tmax T3
For T3, in the three-pole or four-pole fi xed or plug-in version, the MIR mechanical interlock is available. This rear interlock, available in the horizontal (MIR-H) and vertical (MIR-V) version, is compatible with all the front accessories and with the residual current release (only MIR-H). The following interlocking combinations can be made: IO-OI-OO.
Tmax T4, T5, T6
The mechanical interlock for T4, T5 and T6 allows installation of two circuit-breakers on a single support and, by means of special lever mechanisms, makes them mechanically interdependent. For Tmax T4 and T5 this is a rear interlock consisting of a vertical or horizontal frame group (MIR-HR or MIR-VR) and of a pair of metal plates for fixing the circuit-breakers (MIR-P). The frame group is made up of metal frame and of the lever mechanism interlock. The metal plates are of different type according to the sizes of circuit-breakers to be interlocked.
Tmax T7
This mechanism makes the mechanical interlock between two circuit-breakers by means of flexible cables, which are connected on a plate mounted on the side of the circuit-breaker preventing simultaneous closing of the two circuit-breakers. A cable kit has been prepared for vertical installation and another for horizontal installation. The plates to be mounted on the circuit-breaker differ according to whether the circuit-breaker is in the fixed or withdrawable version.
ATS010 device for automatic network-generator unit changeover
In the sphere of low voltage distribution systems, a high level of reliability of the power supply source is always required.
In fact, for some types of user loads, an unexpected power cut can cause serious problems, such as loss of a large amount of data, damage to the working process, plant stoppage, etc.
For this reason ABB SACE has developed the ATS010 device (
Automatic Transfer Switch), for automatic network-generator unit changeover, able to manage the whole system provided for emergency power supply.
Fields of application
The ATS010 device is extremely suited to use in all emergency power supply systems where a solution ready to be installed, easy to use and reliable is required.
Among some of the main applications are therefore power supply of UPS units (Uninterrupted Power Supply) in general, operating theatres and primary hospital services, emergency power supplies for civil buildings, hotels, airports, data banks and telecommunication systems, power supply of industrial lines for continuous processes, etc.
Specific characteristics
Thanks to a changeover logic with integrated safety, ATS010 is able to offer a highly reliable solution to the problem of service continuity. A high performance network sensor, an electrical interlock and the power outputs for control of the circuit-breakers are contained in a single device. For the latter, ATS010 has been conceived to integrate perfectly with both the moulded-case circuit-breakers (with stored energy motor operator or direct acting) and ABB SACE air circuit-breakers, thereby guaranteeing the power supply to the normal line and, in the case of anomalies, sends the start/stop commands to the generator and controls the two circuit-breakers by means of an interlock system.
Changeover is managed both by means of a range of delays which can be adjusted by the user and, of course, in consideration of any possible alarms coming from the field. Notable characteristics of the ATS010 are, furthermore, its ease of use thanks to the front graphics and to the signalling LEDs which facilitate readout of the state of the system, as well as its flexibility which means a single device can be used in different systems.
Compliance with Standards
The SACE ATS010 device fully complies with the EN 50178 (1997) Standard: “Electronic apparatus for us in power plants”. It conforms to the LVD Directives no. 73/23/EEC, EMC no. 89/336 EEC and has been designed according to the provisions of the following Standards: Electromagnetic compatibility: EN 50081-2, EN 50082-2, Environmental conditions: IEC 68-2-1, IEC 68-2-2, IEC 68-2-3.