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Energy Meters

Krishnaa Energy has been in R&D for a long time investing money and time to develop our own energy meters and today we offer more than 30 types of energy meters used for different industries in the electrical side. This division was basically created keeping in mind the various problems faced using other company’s energy meters and that the product should be a class in kind product. We have also integrated our Power Line Communication plug in card as a add on for customers who wishes to do power analysis and automation of their premises. The various meters we manufacture are:


3 Ph KWh-VAF Meter (VFK3309)

 Download Specification

  • 0.5 class accuracy, ETDC certified
  • Pass word protected
  • LCD digit height 10mm with backlit
  • Primary CT value Programmable
  • RS485 Communication(MODBUS compatibility)
  • In built digital temperature compensation to maintain accuracy
  • Weightless
  • Covered screw terminals
  • Less power consumption
  • Easy fixing on panel
Technical specifications
  • Accuracy : class 0.5
  • System : 3phase 4wire
  • Input Voltage : 3 X 240VAC
  • Input Current : CT operated -/5A (Pry CT Value - field programmable 5- 6000A)
  • Basic current : 5A
  • Maximum Current : 120% of Basic current
  • Starting Current : 0.1 % of Ib (5 mA onwards)
  • Measuring Range :Voltage: 10 to 520V AC (L - L), 5 to 300V AC (L - N)
    Current:0.1 % to 100% of Primary CT Value
    Frequency:45 to 65 Hz
    KWh:Four Quadrant Measurement
  • Meter constant : 3200 impulses/Kwh
  • Aux supply : 85 to 265 V AC
    40 to 300 V DC
  • Burden : Voltage Ckt < 1.0VA
    Current Ckt < 0.5VA
    Aux.Supply < 1.0VA
  • Display : 3 ROW LCD with green backlit 1 Row X 8 Digits 10mm height & 2 digits 5mm height.
  • Communication : RS 232/ RS 485 with MODBUS RTU (optional)
  • Meter Configuration : Through 4 no of soft Keys on front fascia
  • Dimension : 96mm X 96mm X 48mm (Including connectors)
  • Panel Cutout : 92mm X 92mm (tolerance + 0.5mm on both sides)
  • Mounting : Panel mounting (spring loaded side Clamp for fixing)
  • Termination : Covered screw terminals
  • Temperature : Operating Temp -10 to 55 º C
    Storage Temp -20 to 70 º C
    Humidity 5 to 95% RH at 50 º C (Non-condensing)
  • Weight : 350g approx
Display Parameters:(Phase Sequence)
  • Phase voltage
  • Phase current
  • Frequency
  • CUM Kwh
Meter variance
  MFM with MD Controller
  Dual Energy Meters
  Multi Function Meters (MFM)
  KWh Meters
  DC Energy Meter
  VAF Meters
  Power Factor Meter
  AC Ammeter
  DC Ammeter
  AC Volt Meter
  DC Volt Meter
  Utility Meter

All the above meters are with and without communication card which is optional to the client

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