The universal measuring device PEM330/333 is used to record and indicate electrical quantities of a public electricity network. The scope of measurements ranges from currents and voltages through energy consumption and performance to total harmonic distortion and voltage quality assessment. The active energy measurements are in compliance with the DIN EN 62053-22 class 0.5 S accuracy standard.The current inputs are connected via external …/1 A or …/5 A measuring current transformers.

Characteristics of LINETRAXX® PEM330/333

• Accuracy class according to IEC 62053-22: 0.5 S
• Measured quantities
  – Phase voltages UL1, UL2, UL3 in V
  – Line voltages UL1L2, UL2L3, UL3L1 in V
  – Phase currents I1, I2, I3 in A
  – Neutral current (calculated) I4 in A
  – Frequency f in Hz
  – Phase angle for U and I in °
  – Power per phase conductor S in kVA, P in kW, Q in kvar
  – Total power S in kVA, P in kW, Q in kvar
  – Displacement factor cos (φ)
  – Power factor λ
  – Active and reactive energy import in kWh, kvarh
  – Active and reactive energy export in kWh, kvarh
  – Voltage unbalance in %
  – Current unbalance in %
  – Harmonic distortion (THD) for U and I
  – k-factor for I
• Programmable setpoint monitoring (PEM333 only)
• LED pulse outputs for active and reactive energy
• Modbus/RTU communication via RS-485 (PEM333 only)
• 2 digital outputs (PEM333 only)
• Demands of energy and current for particular time frames
• Peak demands with timestamps