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Products

NF29

The unit is low cost, easy-to-use, individual and multifunctional that enables to measure all the basic parameters required in an electrical installation and monitors electricity over and above basic metering. The entire range is very rugged and cost-effective. All these products are field proven and more than 100,000 units are active in service.

Features

  • Micro-controller based
  • Measurement of all important Electrical Parameters
  • All parameters with default accuracy class 1.0S
  • Displays with customized LCD
  • Individual voltages and currents for all three phases (R-Y-B)
  • Individual three powers-KW, KVA and KVAR
  • Individual PF and system PF with lead (-) and lag side
  • Frequency (Hz), three energies (KWh, KVAh, KVARh)

Parameter Displays

  • V, A, KWH, KVAH, KVARH, PF, Hz, System & Phase wise KW; KVA; KVAR.

Specification

SR.No.
Parameters & Option
Statistics
01 Volts R-N DirectVoltage Input : 20 to 300V L-N
Burden : 0.5VA
02 Volts Y-N
03 Volts B-N
04 Volts RY DirectVoltage Input : Up to 500V L-L
Burden : 0.5VA
05 Volts YB
06 Volts BR
07 I R Secondary Current Input : 5A or 1A (To be specified at the time of Ordering)
CT Primary : Site Selectable
Range of Reading : 5 – 5000A
Burden : < 1.0VA
Overload(Through CT) : 5A CT = 6A RMS Continuous
1A CT = 1.2A RMS Continuous
(Whole Current) : 120% of Imax continuous.
08 I Y
09 I B
10 Frequency 45 to 55 Hz, Accuracy: 0.3% of Reading
11 KWh Range of Reading: 0 to 9999999.9 KWh
Accuracy : 1.0S as per IS13779.
12 KVARh Range of Reading: 0 to 9999999.9 KVARh
Accuracy : 1.5% of Reading (Between 0.5 Lag to 0.8 Lead
13 KVAh Range of Reading: 0 to 9999999.9 KVAh
Accuracy : 1.0% of Reading
14 System PF Accuracy : 1% ofReading (IPFI>0.5) Range of Reading : 0.05 to 1.00 Lag/Lead
15 System KVA Accuracy : 1.0%of Reading
16 System KW Accuracy : 1.0%of Reading
17 System KVAR Accuracy: 1.5% of Reading (Between 0.5 Lag to 0.8 Lead)
18 DISPLAY Customized LCD
19 Bezel 96x96mm DINenclosure
20 Depth 55 mm