Intelligent Power Factor Controller TPF-56
34 of 56 Version 1.1.5 22
nd
March, 2016
•Out of Banks Fault: This is only with Disable and
Enable options. If Enabled, then unit will indicate the
out of bank fault if for two consecutive correction
cycles, PF is more inductive than Lower PF set point
and all the healthy capacitor banks are in ON state.
In short, the total Capacitive KVAr is less that the
required, to maintain PF within the limits set.
Harmonic Overload: This has two options, namely
Disable and Fast Off.
This is basically to indicate the harmonic faults.
•V-THD Threshold limit (%):. If percentage of voltage
THD is above the set limit, then voltage harmonics
fault (VH) will be displayed on the default screen.
Average THD in any one phase over 3 min period if
exceeded, then this fault is activated.
The VTHD limit can be set through V-THD threshold
limit screen.
•I-THD Threshold limit (%):If percentage of current
THD is above the set limit, then current harmonics
fault (IH) will be displayed on the default screen.
Average THD in any one phase over 3 min period if
exceeded, then this fault is activated. The I-THD limit
can be set through I-THD threshold limit screen.
•Harmonic Flt Auto-Rst: This fault has two options,
namely Enable and Disable. If it is enabled and
Harmonics exceeds from the set limits then
controller switch OFF all the capacitor bank steps
until harmonics come down within set limits. After
harmonics comes below the set limits controller
clears the fault automatically after a period of 180
seconds & is ready to switch ON the capacitor bank
steps. and if disable controller shows the fault until
you reset the fault manually.
•
Harmonic Lmt Ext Loading: User can set the actual
load limit in percentage of rated load here for which
harmonic fault can be detected.
•
Low Rng Mul Fact For VTHD: By setting this factor
user can extend the VTHD fault limit.
•
Low Rng Mul Fact For ITHD: By setting this factor
user can extend the ITHD fault limit.
•Bank Health tolerance: In the capacitor bank health
check monitoring, this indicates the tolerance
between the user set bank kVAr values and the
actual kVAr as calculated by the controller.
…continued.
Out of banks Flt
Disable : 0
Harmonic overload
Disable : 0
I-Thd threshold
Limit(%) : 18
V-Thd threshold
Limit(%) : 03
Harmonic Flt Auto Rst
Disable : 0
Out of banks Flt
Enable :
Harmonic overload
Fast Off :
I-Thd Threshold
Limit(%) : 025
V-Thd Threshold
Limit(%) : 05
Har Flt Auto-Rst
Enable :
Bank health tolerance
Tolerance : 20%
IF ENABLE
IF
ENABLE
IF
DISABLE
#
IF
DISABLE
Harmonic Lmt Ext
Loading(%) : 20
Low Rng Mul Fact
For VTHD:3.0
Low Rng Mul Fact
For ITHD:4.0
