Sifam Tinsley ND20LITE Operation & User’s Manual

11, 11 Fig 3. Meter connection diagrams in a: a) single-phase network, b) 3-phase - 3 wire network, c) 3-phase - 4-wire network Semi-indirect measurement in a 4-wire network. Indirect measurement with the use of 3 current trans- formers and 2 or 3 voltage transformers in a 4-wir…

60, 60 Reference and rated operating conditions - supply voltage 85..253 V a.c. (40...400) Hz or 90..300 V d.c. 20..40 V a.c. (40...400) Hz or 20..60 V d.c. - input signal: 0...0.002...1.2 I n ; 0.05...1.2 U n for current, voltage 0...0.002...1.2 I n ; 0...0.1...1.2 U n …

45, 45 Energy is made available in hundreds of watt-hours (var-hours) in double 16-bit register, and for this reason, one must divide them by 10 when calculating values of particular energy from registers, ie: Imported active energy = (register 4038 value x 65536 + register 4039 value) /10 [kWh] Ex…

29, Sifam Tinsley ND20LITE 29 Example no 1 of alarm setting: Set the alarm of n-on type for the monitored quantity P – 3-phase active power, version 5 A; 3 x 230/400 V. Switching the alarm on, after exceeding 3800 W, switching the alarm off after decreasing 3100 W. Calculate: rated 3-phase active power: P = 3 x 23…

32, 32 Displayed parameters in the row 4 19 Three-phase mean current I_A oFF, on on 20 Current in neutral wire I_n oFF, on on 21 Three-phase active power 3P oFF, on on 22 Three-phase reactive power 3q oFF, on on 23 Three-phase apparent power 3S oFF, on on 24 Three-phase mean power factor PF PF_A …