ND30PNET meter is a digital programmable instrument designed to measure network parameters of single-phase 2-wire and three-phase 3 and 4-wire balanced and unbalanced systems. The measured values are displayed on a color graphic screen TFT 3.5” with a resolution of 320 x 240 pixels. The meter enables the control and optimization of power electronic devices, systems and industrial installations. It provides measurement of: RMS voltage and current, active, reactive and apparent power, active, reactive and apparent energy, power factor, frequency, harmonic currents and voltages /up to 51st/, THD of current and voltage, average active and apparent power, P Demand, S Demand, averaged current I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given current and voltage transformer ratios of measuring transformers. Indications of power and energy include the values of programmed ratios. The values of the measured quantities can be transmitted to the host system through RS485 interface or Ethernet / Profinet interface, relay outputs signal overruns of the selected parameters, programmable analog output maps the assigned parameter. Temperature inputs can be used to control the temperature of the windings of
transformers, motors.
The meter has a galvanic separation between the individual blocks of:
– power supply,
– voltage inputs,
– current inputs,
– RS485 Interface,
– Ethernet/Profinet interface,
– alarm outputs,
– analog output,
– Pt100 sensor input.
The N100 meter is a programmable digital instrument designed for the measurement of 3-phase, 3 and 4-wire power network parameters in balanced or unbalanced systems. The measured values are displayed on a two-color LED display. The meter enables control and optimization of the power electronic devices, systems and industrial installations. The meter provides measurement of: RMS of voltage and current, active, reactive and apparent power, active, reactive and apparent energy, power factors, frequency, the harmonics of current and voltage /up to 51st/, THD of voltage and current, averaged active and apparent power P Demand, S Demand, averaged current I Demand /15, 30 or 60 minutes/. Voltages and currents are multiplied by given voltage and current ratios of the measuring transformers. Power and energy indications take into account all programmed ratio values. The value of each measured value can be transmitted to the master system via the RS-485 or Ethernet interface. Three relay outputs signal the overflow of the chosen value, and the pulse output can be used for the consumption check of 3-phase active energy. The programmable analog outputs map the assigned parameter. The pulse input can be used to check the counters with the pulse outputs.
There is a galvanic separation between following units of the meter:
–– supply
–– voltage inputs
–– current inputs
–– RS485 interface
–– Ethernet interface
–– pulse input
–– pulse output OC
–– alarm outputs
–– analog outputs
The N14 meter is a programmable digital panel instrument destined for the measurement of 3-phase, 3 or 4-wire power network parameters, in balanced or unbalanced systems with the simultaneous display of measured quantities and digital transmission of their values. This network parameter meter enables the control and optimization of power electronic devices, systems and industrial installations. The N14 meter ensures the measurement of: RMS voltage and current, active, reactive and apparent power, active and reactive energy, power factors, frequency, mean active power (e.g. 15-min mean power). Voltages and currents are multiplied by given current and voltage ratios of measuring transformers. Indications of power and energy take into consideration programmed ratio values. The value of each measured quantity can be transmitted to the master system through the RS-485 interface. The relay output signals the exceeding of the chosen quantity and the impulse output can be used for the consumption control of the 3-phase active energy. The meter has a detection and signaling of incorrect phase sequence. The meter is fixed to the panel by means of screw holders.
