Notes on Protection and Functionalities:
(1
)If current CT connections are not connected to the TPF-56 unit i.e.
if no current is detected or the detected current is below 1.5% of
rated load current, then, TPF-56
would show the following display
on the LCD.
(2) If
Harmonics overload
fault is enabled, and if the voltage or current
THD exceeds the set limit, then
TPF-56
would show the following
display on the LCD.
Pressing the Enter key, would reset the
VH/IH
fault even if
voltage/current THD is above the set limit. The fault indication would
continue till the respective THD is above the set limit. In case of THD
above limit, all capacitor banks are switched off to protect them.
TPF – 56 also have a parameter
called Harmonic Fault Auto-
Reset
. If enabled, then the controller automatically clears off the
harmonic fault after 180 seconds when the harmonic level falls
down below the Set limits
(3)
Battery Low
:If the internal Lithium coin Battery Voltage of nominal
3 V drops below 2.6 V then the controller will flash “Battery Low!!!”
message on the Default screen display (in a blinking state with certain
delay) until the battery is replaced by a new healthy battery. Please
note that even when the “Battery Low!!!” message is being flashed on
the LCD display the user can still operate the keypad.
It is essential to have the battery operational to maintain the Real
Time Clock and Calendar information. If the Battery Voltage falls
below certain limit, the RTCC will stop functioning. All Data Logging
operations are prohibited if the RTCC is Stopped.
Intelligent Power Factor Controller TPF-56
DDDDD ENT TO RST
PF= +0.980 A VH
DDDDD ENT TO RST
PF= +0.980 A IH
PF = + ?.??? A ZC
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Version 1.1.5 22
nd
March, 2016
