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   Electricity Meters

SE-1.14

PURPOSE

     Electric power meters are designed for accounting of active alternating current energy with frequency 50 Hz in double-wire circuits.
Power consumption is displayed at electromechanical indicating device (ID), protected from electromagnetic effect. Availability of telemetering output allows to use electric power meters in the composition of automated consumed electric energy data acquisition systems

TECHNICAL FEATURES OF ELECTRIC POWER METER

  • Electric power meters have two current measuring devices- in phase and zero connection lines, that provides energy accounting in case of current availability in one or two lines, moreover accounting is carried out in the line, where consumption is greater.
  • Electromechanical indicating device presents quantity of consumption power in kWh with accuracy to tenth.
  • Indicating devices (ID) with limit stop from reverse travel and protection from electromagnetic effect, exceeding requirements, presented in GOST 30207-94 are used in electric power meters.
  • LED indication of current availability in load circuit, in this case LED extinction rate is proportional to level of energy consumption.
  • Electric power meters are equipped with conductively-uncoupled from network pulsed output, providing transmission of information about energy consumption via two-wire communication line into remote data acquisition system.

TECHNICAL SPECIFICATIONS OF ELECTRIC POWER METER

Value description

Value

Rated voltage (Urated), V

230

Rated (maximum) current value,

5 (50)

Accuracy class

1.0 or 2.0

Network frequency, Hz

502,5

Network frequency working range, Hz

47.5 to 52.5

Sensitivity  :
    for electric power meters of accuracy class 1.0
    for electric power meters of accuracy class 2.0


0.0125
0.025

Transmission ratio, pulse/kWh

6400 or 4000

Gross power, consumed by series circuit of electric power meter
under rated current, V

0.1

Power, consumed by voltage current of electric power meter under rated voltage:
    gross, V
    active, W



7
1

Specified extreme operating temperature range,

40 to +55

Calibration interval, years

16

Average service life to overlength of communication line, years

30

Electric power meter dimensions, mm

1791465

Electric power meter weight, kg

maximum 0.65

 

New products

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Copyright

Copyright © 2012
Nizhny Novgorod Factory named after M.V. Frunze.
All rights reserved.
 
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