Trinity ACCUVAR, User Manual, Page: 19 / 27

pg. 19
TRINITY
ACCUVAR - Operational Manual
2. If other parameters need to be changed, do so using similar method. Else, press key
for about four seconds continuously. The unit will restart and enter into run mode.
7. Auto Sense, Setting Minimum operating Current and PF Value to Switch OFF Banks
When the Auto Sense is set to YES, the unit switches on all relays one by one. The bank
sizes will also display as they get sensed one by one and the user therefore must be patient
and wait for about 4 to 5 minutes while the autosense is in progress. This process is vital for
the smooth operation of the relay. Once all capacitor banks have been sensed, the relay will
restart for control action and also display the parameters one by one.
Minimum operating current is used to set minimum current required to start control action in
FIFO and SFIFO mode. If this parameter is set to "Sensitive" it will do control action until
current goes below 1% of Main CT Primary. If this parameter is set to "Normal" it will do control
action until current goes below 5% of Main CT Primary.
Offset_PF can be used to switch OFF banks in FIFO and SFIFO mode. If target PF is set on
Lag side it will switch OFF banks if PF goes below 0.980 lead. If Target PF set on the lead
side, it will switch OFF banks when PF goes below this parameters value. Value of
"OFF_SET" parameter can be set to 1.780 to (Target_PF-0.2).
To change the above parameters, proceed the following instructions:
Once in the programming mode,
1. Set Arrow (>) to the desired parameters using and keys and press key. Now
Arrow (>) starts blinking which means value of this parameter can be set now. Set desired
value by using and keys and again press key to save its value.
2. If other parameters need to be changed, do so using similar method. Else, press key
for about four seconds continuously. The unit will restart and enter into run mode.