Đồng hồ đo công suất điện năng LUMEL ND30

Đồng hồ đo công suất điện năng LUMEL ND30

Đồng hồ đo công suất điện năng LUMEL ND30

• Measurement and recording of 54 power network parameters, including current  and voltage harmonics up to 63rd, in 1-phase 2-wire or 3-phase 3 or 4-wire balanced and unbalanced systems.
• Color graphical display: LCD TFT  3,5’’, 320 x 240 pixels, fully configurable by user
  • 10 pages, 8 parameters in each
  • 2 pages with harmonic presentations
  • 1 page with analog indication
• Indications include the values of programmed ratios.
• Memory of minimum and maximum values.
• 2 configurable alarm outputs.
  • Mode of supervisory relay for alarm outputs - function available from 02.2019.
    Function can be ordered with new device as well as activated on the devices which have been alredy installed on the facility after softwate upgrade (from 1.07 version). To make function active, please order appropriate licence key (here)  - LKEY type.
    Supervisory relay mode enables detection of following events:
    • voltage drop or growth
    • current drop or growth
    • phase loss
    • current or voltage unbalance
    • phase sequence
  • User can specify:
    • the thresholds of monitored events
    • monitoring of phase relay
    • memory of relay state
    • delay of switch-on/off relay
    • relay state after the event has occured.