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Models which are not more series-produced
PURPOSE AND FIELD OF APPLICATION
The meters are intended for multitariff technical or commercial accounting of active energy in two-wire power circuits of a.c. regardless of its direction.
The electricity meters can be used independently or as a component of any automated systems for commercial energy accounting (ASKUE).
NORMATIVE AND LEGAL BACKING
- Digital signal processing.
- Communication interfaces: RS-485 with external 9-15V AC or DC power supply or optoport.
- The electricity meter SEB-1ÒÌ.01.03 has a RS-485 interface with a built-in power source.
- Nonvolatile memory.
- Built-in real time clock.
- ModBus- similar, SET-4ÒÌ.02 compatible exchange protocol.
- Programmable pulse output.
The electricity meters are intended for multitariff accounting of active energy in four tariff zones, as per 4 day types in twelve seasons. Tariff zone increment is 10 minutes. Tariff zones interlace per day is limited to the number of 10-minutes intervals in a day and is 144 intervals. The tasksetter of the meter uses holiday schedule and list of postponed days.
The electricity meters can be used as power-quality meters under parameters of steady-state network frequency and under parameters of steady-state phase voltage.
The electricity meters allow to form telemetric pulses at the configurable test output on active power data measured during network period.
The electricity meters keep event logs, power-quality logs, a log concerning power threshold exceeding and a status log.
The electricity meters keep records of the measured active energy with the possibility to read them through the interface: in total from the date of meter resetting, for the current month and preceding 11 months, as at the beginning of the current month and of each preceding 11 months, for the current and preceding day, as at the beginning of the current day and preceding day.
The meters allow to indicate on the liquid-crystal display the data on measured active energy: in total from the date of meter resetting; for the current month and preceding 11 months; as well as auxiliary parameters: instantaneous active, reactive and total power, network voltage, voltage of built-in battery, current, power factor, network frequency, current time and date, temperature inside the meter.
The electricity meters provide the possibility to read, programme and reprogramme parameters and data through the interface.
Nominal (maximum) current, À
Sensitivity current, mÀ
Nominal voltage, V
Working voltage range, V
from 184 to 265
Rated network frequency, Hz
Working range of network frequency, Hz
from 47,5 to 52,5
Accuracy class when measuring active energy
Maximum permissible main error when measuring, %:
| network voltage and its average value|
in the working voltage range;
±0,9 at Inom≤I≤Imax;
| network frequency and its average value|
±0,05 in the range from 47,5 to 52,5Hz
Active (total) power consumed by parallel voltage circuit, W (V·À)
not more thah 1 (10)
Total power consumed by serial circuit, V·À
not more thah 0,1
Number of indicated liquid-crystal display digits
Accuracy movement of built-in clock at normal conditions when the meter is switched on/off, sec/day
better than ±0,5
|Change of accuracy movement in the working temperature range, sec/ °Ñ /day: |
when the meter is switched on in the temperature range from - 40 to +60°Ñ
when the meter is switched off in the temperature range from -10 to +70 °Ñ
when the meter is switched off in the temperature range from -40 to -10 °Ñ
less than ±0,1;
less than ±0,15;
less than ±0,22
Transmission ratio, pulses/(kwh):
in the main mode (À)
in calibration mode (V)
Rate of data exchange, bit/sec:
through optical port
through RS-485 interface
9600, 4800, 2400, 1200, 600, 300
Two access levels and memory hardware protection of metrological factors
Working and service conditions:
ambient air temperature, °Ñ
relative humidity, %
pressure, kPa (mm of mercury)
from -40 to +60
90 % at 30 °Ñ
from 70 to 106,7 (from 537 to 800)
Recalibration interval, years
Guaranteed service life, months
Data saving when switchin off the power supply, years
Average error-free running time, h
Average service life, years
communication interfaces type
current sensor type
Time-schedule of workshops
Copyright © 2012
Nizhny Novgorod Factory named after M.V. Frunze.
All rights reserved.