DAQ varmeters are used for reactive power measurement. There are versions for single-phase AC and three-phase with 3 or 4 wires for balanced and unbalanced loads. The frequency range is 50 – 60 Hz.
Ferrodynamic system, with one measuring element for DAQ/1wb, DQ/1db and DQ/1b; two elements for DQ/2 (aron system), and 2 1/2 elements for DQ/3b. Eddy-current damping, with pivot suspension and spring-loaded jewel bearings for vibration and shock resistance
Scale - 240º
Class - 1.5
Dimensions in mm - 96 x 96 / 144 x 144
Consumption
The consumption per current path is < 0,2 VA
The current consumption in the voltage path is < 3,9 VA
Scales
90º scale, practically linear. Coarse-fine division- The full-scale value must be between 0.2 and 2 times rated apparent power, which is calculated as follows:
• For single-phase AC:
S(W) = Primary voltage (V) x Primary current (A)
• For three-phase AC:
S(W) = √3x Primary line-to-line voltage (V) x Primary current (A)
Unless otherwise indicated, the full-scale value is calculated by rounding S down to one of the following standard value: 1 - 1,2 - 1, 5 - 2 - 2,5 3 - 4 - 5 - 6 - 7,5 - 8 or their decimal multiples.
On request: Zero center. Por example, -100-0-100kW
Overload capacity according to DIN 43780