Reference conditions for Accuracy :
Reference temperature
Input waveform
Auxiliary supply voltage
Auxiliary supply frequency
0
0
23 C + 2 C
Sinusoidal (distortion factor 0.005)
Rated Value + 1 %
Rated Value + 1 %
Auxiliary Supply :
AC-DC Auxiliary Supply
40V to 300V AC/DC (+/- 5%)
Frequency Range for AC Aux. Supply 45 to 65 Hz
VA Burden
<3 VA at 240V ,50Hz .
20V to 40V AC /20V to 60V DC
Overload Withstand :
Current
Voltage
2 X Rated Value for 1 Second, repeated
4 X Rated Value for 1 Second, repeated
10 times at 10 second interval.
5 times at 5 min interval.
Operating Measuring Ranges
Voltage Range
10 ... 120 % of Rated Value
Frequency
45 ... 65 Hz
Current Range
10 ... 120 % of Rated Value
Overload Indication :
“-oL-”
(If input is greater than 125% of secondary value.)
Input current (3A / A) :
Nominal Input Current Ranges 1A and 5A AC RMS
Max continuous input current 120% of rated value
Nominal input current burden <0.2VA approx. per phase
System CT Primary values 1A to 999kA Programmable onsite
Input Frequency
50 Hz / 60 Hz
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