ABB XT7, Руководство по эксплуатации и обслуживанию

Страница: 176 / 193

ABB | SACE Tmax XT
174 | © 2020 ABB | 1SDH001821A1002 - ECN000135670 External electronic accessories | 12 - Ekip Synchrocheck
12 - Ekip Synchrocheck
Ekip Synchrocheck is an accessory module that is used to control closing of an actuator when synchronism
conditions, programmable by the user, exist.
To actuate synchronism:
• Ekip Synchrocheck and the internal sockets measure, respectively, the voltage on the external contacts
(external voltage) and on the internal contacts (internal voltage) of the actuator
• Ekip Synchrocheck manages a closing contact
NOTES:
•
the actuator is described as a circuit-breaker in the following description and in the menus
• with a generator and the actuator being configured: Normally, the external voltage is that of the
grid and the internal voltage is that of the generator
IMPORTANT: only one Ekip Synchrocheck can be installed on each CB
Mode The module operates in two modes, configurable by the user (manual-mode configuration) or managed
automatically by the unit (automatic-mode configuration).
Conditions Description
Busbar active
Operation with external voltage other than zero:
• synchronism search starts if the external voltage is (0.5 Un by default) or more, for
at least (1 s by default)
• synchronism is considered to have been reached if the differences between RMS
values and frequencies and the voltage phases are (0.12 Un, 0.1 Hz, and 50° by
default) or less
Dead busbar and
configuration:
Normal
Operation with one of the voltages nil:
• synchronism search starts if the internal voltage is (0.5 Un by default) or more, for
at least (1 s by default)
• synchronism is considered to have been reached if the external voltage is (0.2 Un
by default) or less, for at least (1 s by default)
NOTE:
with dead busbar and configuration: Reversed, the roles of the internal and external
voltages are reversed
Synchronism signal:
• is activated and maintained, after synchronism has been reached, for at least 0.2 s
• is deactivated when synchronism ends or the circuit-breaker is opened (with condition:
Evaluate CB status
= enabled) or communication with Ekip Touch is interrupted
Additional functions Certain options can be remotely configured in the synchronism conditions described above:
• the open circuit-breaker condition can be added (disabled by default)
• removal of the frequency and phase controls can be disabled
IMPORTANT: to be able to disable the frequency and phase controls, first make sure
that the required frequency and phase correspondence between external and
internal contacts already exists
Connections
The module must be assembled in the first vacant slot of the terminal box after Ekip Supply , either on the
circuit-breaker (fixed version) or on the fixed part (withdrawable version).
For references about the connection and terminals, please consult document
1SDM000002A1001
and
1SDM000019A1002 ; use AWG 22-16 cables with 1.4 mm maximum outer diameter for the external cabling.
To connect the module to Ekip Touch, please consult document
1SDH002009A1505
.