Description

3-PHASE POWER QUALITY ANALYSER

Lumel ND1 Features

Measurement and recording of electric energy quality parameters acc. to the EN 50160 standard, over 300 other parameters of 3-phase power networks, i.e.:

• phase voltages U1, U2, U3 and line currents I1, I2, I3,

• phase-to-phase voltages U12, U23, U31,

• phase active powers P1, P2, P3,

• phase reactive powers Q1, Q2, Q3,

• phase apparent powers S1, S2, S3,

• active power factors PF1, PF2, PF3,

• reactive/active power factors tgj1, tgj2, tgj3,

• mean phase-to-phase voltage US Umf,

• current in neutral wire and mean 3-phase current IO, IS,

• 3-phase active, reactive and apparent powers P,Q,S,

• mean 3-phase power factors PF, tgj,

• frequency f and frequency deviations,

• 15-minutes’ mean active power PAV,

• 3-phase active, reactive and apparent energy EnP, EnQ, EnS,

• active, reactive and apparent energy from an external counter EnPz, EnQz, EnSz,

• THD for phase and current voltages,

• harmonics of currents and phase voltages up to the 51st,

• storage of minimal and maximal values,

• recording of drops and voltage decays.