LUMEL

3-Phase Network Meter, ND1

Measurement, visualization and recording of over 300 parameters of 3-phase balanced or unbalanced power network

  • phase voltages: U1, U2, U3and phase currents: I1, I2, I3
  • phase-to-phase voltages: U12, U23, U31
  • active phase powers: P1, P2, P3
  • reactive phase powers: Q1, Q2, Q3
  • apparent phase powers: S1, S2, S3
  • active power factors: PF1, PF2, PF3
  • reactive/active power factors: tgφ1, tgφ2, tgφ3
  • mean phase-to-phase voltage: UsUmf
  • current in neutral wire and mean 3-phase current: Io, Is
  • active, reactive and apparent 3-phase power: P, Q, S
  • mean 3-phase power factors: PF, tgφ
  • frequency f and frequency deviation
  • 15 minutes’ mean active power: PAV
  • active, reactive and apparent 3-phase energy: EnP, EnQ, EnS
  • THD for voltage and phase current
  • harmonics for current and phase voltage up to 51 st !
  • storage of min and max values
  • recording of dips and voltage decays
  • monitoring of run function
  • voltage asymetry
  • flicker parameters: PST, PLT
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  • Measures parameters of 3-Phase or 3/4 wire symetrical/asymetrical systems
  • RS485 MODBUS (Optional)
  • 2 Alarm outputs, 1 Pulse output for active energy

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Product description

Measurement, visualization and recording of over 300 parameters of 3-phase balanced or unbalanced power network

  • phase voltages: U1, U2, U3and phase currents: I1, I2, I3
  • phase-to-phase voltages: U12, U23, U31
  • active phase powers: P1, P2, P3
  • reactive phase powers: Q1, Q2, Q3
  • apparent phase powers: S1, S2, S3
  • active power factors: PF1, PF2, PF3
  • reactive/active power factors: tgφ1, tgφ2, tgφ3
  • mean phase-to-phase voltage: UsUmf
  • current in neutral wire and mean 3-phase current: Io, Is
  • active, reactive and apparent 3-phase power: P, Q, S
  • mean 3-phase power factors: PF, tgφ
  • frequency f and frequency deviation
  • 15 minutes’ mean active power: PAV
  • active, reactive and apparent 3-phase energy: EnP, EnQ, EnS
  • THD for voltage and phase current
  • harmonics for current and phase voltage up to 51 st !
  • storage of min and max values
  • recording of dips and voltage decays
  • monitoring of run function
  • voltage asymetry
  • flicker parameters: PST, PLT

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