Internal
Temperature
Fault:
Unit
monitors
the
temperature
inside
the
APFC
06
housing.
This
temperature can go up either due to ambient temperature
in the APFC panel has gone up beyond limit or if some
component failure in APFC 06 hardware itself. Upper limit
is for tripping and lower limit is for normal operation
(resume).
• Step Health Check:
APFC
06 carries out on line
monitoring of the kVAr values of every step. This is when
the step is put in the circuit. In case the measured value
exceeds the set
tolerance limit defined here , that
specific bank is declared faulty.
•
Bank kVAr Fault Tolerance : For step health check , the
Capacitor bank step kVAr tolerance limit is defined here.
•
Bank kW fault tolerance : Online Capacitor kVAr value
is calculated with the help of Load kW , Load kVAr. In
case
there is constant rapid variation in load , hence
under such condition it is recommended
to keep step
health check disabled. The bank kW fault tolerance limit
is the
allowed
variation in Load kW to detect the
Int Temperature Flt
Disable :0
Temperature
Resume : 55 Deg C
Temperature
Limit : 65 Deg C
Step Health Chk
Disable : 0
Bank KVAR Fault
Tolerance ( % ) :25
Bank KW Fault
Tolerance ( % ) :10
Power Factor Controller APFC 06
FAN OFF TEMPER
.
Limit : 40
Limit : 50
FAN ON TEMPER.
- 24 -
is the
allowed
variation in Load kW to detect the
capacitor step kVAr values .
•
FAN O/P ACTION: User can make APFC Panel Cooling
Fan On or Off by enabling fan o/p action enable. To use
this auxiliary digital o/p, function should be selected for
fan o/p.
•
Fan on & Off action temperature limit is settable. Please
note
this
is
based
on
internal
microcontroller
temperature. So, it may be possible to have some
deviation between actual APFC Panel internal Temperature
& APFC controller’s Micro-Controller Temperature.
•
PF O/P ACTION: In case the PF detected on supply
system to be way below the acceptable limit, if the alarm
is to be sounded, this action can be enabled.
•
PF ALARM SET and RESUME Limits can be set in the
given subsequent screens.
FAN O/P ACTION
Disable
:
0
PF ALARM RESUME
.
Limit : 0.95
Limit : 0.90
PF ALARM SET
PF AUX. O/P ACTION
Disable
:
0
