ABB RVT Serie Instrucciones De Instalación Y De Funcionamiento página 48

Alarm: alarm relay parameters can be set for the Alarm cos j condition:
The Alarm cos j condition is fulfilled when: all the capacitor steps are ON and the actual
cos j value is below the alarm cos j threshold value such that at least one step is needed.
- Alarm delay: duration of alarm cos j condition before the relay closes.
- Alarm reset delay: delay time before the relay opens after the alarm condition has
disappeared.
- Alarm cos j: threshold value
4.3.1.4 Protections and warnings
Start screen-> Settings-> Manual settings-> prot&warn.
RVT will activate certain actions when some system values exceeding certain thresholds.
Protection level is harsher than warning ones.
4.3.1.4.1 Protections
Protection levels: To set the levels of protection against under-voltage, over-voltage,
prohibitive harmonics, max. Irms current protection; it also enables an external
Figure 39: RVT protections and warning settings
Figure 40: RVT protection settings
Power Factor Controller RVT ç Measurements and Settings 47