Specifications of TPF-56/xx Unit:
1. Rated supply values:
3 – Phase, 4 – Wire supply system.
Line-to-Line rated voltage 440V
AC
sinusoidal.
Rated frequency 50Hz(+/-3Hz) Or 60Hz(+/-3Hz)
2. Auxiliary Supply:
Line to Line sinusoidal voltage range 100V
AC
- 500V
AC
.
Supply frequency range 47 Hz to 63 Hz.
Supply VA burden – 8 VA maximum. (typical 6 VA)
Protected by externally replaceable 0.8 A/500V
AC
slow-blow
glass type standard fuse.
3. Metering (measurement) Input:
Voltage Input:
Voltage 3-Ph, 4-Wire with Ph-N values range of measurement
as 60 V
AC
to 300V
AC
.
Voltage Measurement burden < 1VA per phase.
Current Input:
Current measurement through secondary current of 3 Nos of
Current transformers with secondary rated current as either
1Amp or 5Amp AC.
Current measurement range: 1.5%I
Nominal
to 130%I
Nominal
For 1Amp terminals: 15mA to 1.3Amp.
For 5Amp terminals: 75mA to 6.5Amp.
Maximum current withstanding capacity: 4xI
Nominal
for 1 Second.
Maximum VA burden on CT: < 1VA.
Measurement Values and Accuracy:
Per phase Voltage, Per phase & neutral Current,
Overall Power and Overall Energy values with accuracy class
1.0 as defined in IS-14697 with all Amendments till date.
This is for Active & Reactive Power / Energy.
Intelligent Power Factor Controller TPF-56
8 of 56 Version 1.1.5 22
nd
March, 2016
