Reactive power meter VАR4100

Reactive power meter VAR4100

VAR4100 is digital measuring, fully programmable device from series 4100, designed on basis of microcontrollers. The device measures reactive electric power in electrical substations and power plants. VAR4100 provides also the ability to calculate and store the consumed electrical energy. The unit is designed to be mounted on boards in control rooms of electrical substations.

user manual

VAR4100 is offered in following variety*:

- basic option - measures and shows reactive power
R free-potential relay contacts for remote signalization are provided
C code-protected user menu
X user is not allowed to change device settings
* - Every option can be ordered in any combination with other options

Main technical parameters of VАR4100

nominal input voltage 100 VAC (other possible, when ordered)
nominal input current 5 AAC (other possible, when ordered)
power supply 55-250 VAC (80-350 VDC)
display super bright red, 4-digit, 94х29 mm visible, purple filter
measurement error < 1.2 % rgd + 6d
measurement cycle < 1 s
relay contacts count up to 3
power consumption < 3 W
work temperature from 0° C to 55° C
storage temperature from -50° C to +90° C
dimensions (H/W/D) 144/144/65 mm (w/o plugs); 144/144/75 mm (with plugs)
mounting hole (H/W) 136/136 mm quad, centered
protection class IP52 front, IP31 back
own weight 320 g

Normal mode of operation

Electrical wiring of VАR4100

User-defined parameters

  • nominal primary voltage and decimal point position
  • nominal primary current and decimal point position
  • sign - on/off, of measured power
  • display blinking
  • power high level
  • power low level
  • hysteresis
  • relay contact switching delay