For over-voltage and under-voltage fault, the option
available is as hereunder:
1
=Fast Off Step
For all the faults, normally two limits are defined. One is
Detection Limit and another Resume Limit. Detection
Limit if exceeded (above/below) by the parameter would
mean the action as defined by parameter in type of fault
(as given here-above). Resume Limit defines the
parameter value above/below which the fault is
deactivated.
• Over-Voltage: As name suggests, its for Over-Voltage
conditions persisting in any one phase for 3 sec.
• Under-Voltage: For Under-Voltage conditions in any one
phase persisting for 3 sec.
• Under Load fault: The values here are set as % of
Maximum rated kW. This is useful in case of banks are put
in circuit to take care of no load compensation. Value for
this Under-Load KW can be calculated as shown here.
•Over current: The TPF-56 detects if the supply system is
overloaded, then it is for warning indication. No capacitor
banks are switched off with this detection.
•Temperature fault: As the name suggests, it displays the
over temperature fault if the temperature exceeds the set
limits. There are two parameters related to it, i.e. the
temperature upper limit and lower limit. If fault is set,
then “Fast Off step” action is undertaken.
Fault
continued..
Over voltage
Limit (%) : 113
Over voltage
Resume (%) : 110
Under voltage
Limit (%) : 068
Under voltage
Resume (%) : 071
Under load
Limit (%) : 02
Under load
Resume (%) : 03
Under load KW Flt
Off Step :
IF ENABLED
IF
DISABLE
#
Over Current
Limit (%) : 100
Over Current
Resume (%) :095
Intelligent Power Factor Controller TPF-56
Temperature Flt
Fast off :
Temperature
U. limit : 70
Temperature
L. limit : 60
IF Fast off
IF
DISABLE
32 of 56
Version 1.1.5 22
nd
March, 2016
