CIRCUTOR computer PLUS-TF Series - Manual (Page 52)

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9.2 Alarm setup options
 Table 9.1 shows a summary of each alarm option that can be configured and table 9.2 defines each
option available.
Options Programmable alarm parameters
Enable Global Global activation of all alarms
Temperature (ºC) Alarm limits of temperature (HI-LO), delay time (DelayT) and trip mode(NO, NC, DIS)
I leakage (A) (1) (2)
(See 9.4.1)
Alarm limits of I leakage (HI-LO), delay time (DelayT) and trip mode (NO, NC, DIS)
The alarm is only available in Computer plus TF-CDI.
The LO value must always be set to zero.
Voltage P-P (V) Alarm limits of phase-phase voltage (HI-LO), delay time (DelayT) and trip mode (NO, NC, DIS)
THDV % (2)
Alarm limits of THDV (HI-LO), delay time (DelayT) and trip mode (NO, NC, DIS)
The LO value must always be set to zero.
THDIL x IL (A) (2)
Alarm limits of total harmonic current (HI-LO), delay time (DelayT) and trip mode (NO, NC, DIS). The LO value
must always be set to zero.
THDIC% (1) (2)
Alarm limits of THDIC (HI-LO), delay time (DelayT) and trip mode (NO, NC, DIS)
The alarm is only available in Computer plus TF-CDI.
The LO value must always be set to zero.
uncompensated kvar
The LO value indicates the alarm level when there are no steps entered and the HI level indicates the alarm level
when steps have been entered. The delay time (DelayT) and trip mode (NO, NC, DIS) can be programmed
cos 
The values are ordered from -1 to +1. – are capacitive values and + are inductive values. The delay time (DelayT)
and trip mode (NO, NC, DIS) can be programmed
IC out of the margin (1)
(See 9.4.2)
The alarm limits by IC (HI-LO) are programmed in %. In this case, instead of the delay, the number of times that the
anomaly must be detected before the alarm is tripped (N Rep) and the trip mode (NO, NC, DIS) can be
programmed.
The alarm is only available in Computer plus TF-CDI.
IL current (A) Alarm limits of IL (HI-LO), delay and trip mode (NO, NC, DIS)
Relay setup
It can be used to assign the alarms that switch the relay. The relay switches when any of the alarms assigned is
activated and when these are enabled and the global enabling is also activated ("OR" function of all alarms
assigned to a relay)
Current Fault Alarm
(See 9.4.3)
Not programmable. Not displayed on the menus. It detects if current in any of the three phases is below 1% of
the nominal value (CT primary). When there is a failure in all three phases, Computer plus disconnects all
capacitors and stops the regulation function.
Notes
(1) These parameters are only available in Computer plus TF-CDI.
(2) In these parameters it does not make sense to have a minimum alarm, so that LO must always be set to zero.
(3) All alarms, except Ileak, have a minimum delay of 1 s and those related with THD(I) and THD(V) a minimum delay of 2 s.
Table 9.1.- Options of the alarm setup menu and description