Voltage and current device

Purpose and composition

 

  • The unit is intended for feeding the circuits of single-, three-phase electric induction and electronic energy meters, a.c. in the process of their testing and regulating.

 

  • In the autonomic mode the unit provides the output of voltage, current frequency and phase displacement to test and regulate single-phase СЭМ -1V, three phase electronic meters, type СТЭМ , with the position column and automatic error determinants (AED).
  • The unit provides the input of the keyboard values and displaying of the calculated values on the display board LCD (liquid-crystal display), and also the communication and the operation with the personal computer (PC) with the aid of software. Besides the unit allows the input of the keyboard values and the displaying of the calculated values on the monitor display.

 

  • The unit can be used in the ACS-16 system.
Technical specifications
 
Specifications Values
The range of the output voltage change for the three phases within 30-300 V
The accuracy of the output voltage value definition is ± 0,3%
The range of output current change

  • with Rheat=0,030 Om

 

  • with Rheat=0,005 Om
from 0,01 to 50A
from 10 to 100А
The range of the output frequency change (Fq) is within from 47 to 63Hz
The definition accuracy is ± 0,2%
The frequency value defined is ± 0,1%
The range of the phase displacement angle change (Ph) between the output voltage and current upon the active loading is within from -180° to +180°
The accuracy of the phase displacement angle definition is 0,2%
The frequency drift from the defined value is no more ±0,1°
Supply voltage 220W± 10%
Power line frequency 50Hz± 1%
Power input no more 600VA
Overall dimensions of the unit (mm), no more 480х380х360
Weight no more 30kg