Models which are not more series-produced
PURPOSE AND FIELD OF APPLICATION
The meters are intended for metering of active electrical energy in two-wire power circuits of alternating current with the frequency of 50Hz.
The data on power consumption is indicated on the liquid-crystal display or on the electrical and mechanical reading device which is protected from electromagnetic influences. Due to telemetric data output of the meters they can be used as a component of any automated systems for commercial energy accounting.
NORMATIVE AND LEGAL BACKING
- The electrical and mechanical reading device or the liquid-crystal display indicates the amount of the consumed power in kilowatt-hour with the accuracy of one hundredth of a unit.
- LED indication of the current in the load circuit: the more the load, the more often the LED blinks.
- Reading devices with the reverse motion lock and protection from electromagnetic influences are used in the electricity meters.
- The electricity meters are provided with a pulse output, which is galvanically separated from the network and ensures transmission of information on the quantity of active energy to a remote data collection system through a two-wire communication line.
Nominal voltage (Unom), V
Nominal (maximum) current, À
1,0 or 2,0
Working range of network frequency, Hz
from 47,5 to 52,5
for energy meters of the accuracy class 1
for energy meters of the accuracy class 2
Transmission ratio, pulses./kwh
6400 or 4000
Total power, consumed by the meter’s serial circuit at the rated current V*A
|Power, consumed by the meter’s voltage circuit at the nominal voltage:|
Fixed maximum working temperature range, °Ñ
from -20 to +55
from -40 to +55
Recalibration interval, years
Average service life till overhaul, years
Measuremants of the meter, mm
not more than 0,65