SEB-1TM.02, SEB-1TM.02D 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 either independently or as a component of any automated systems for commercial energy accounting (ASKUE) or as a component of any billing systems with function for load control under programmed criteria or on remote demand.
NORMATIVE AND LEGAL BACKING
IEC 62052-11:2003
TECHNICAL FEATURES
- Digital signal processing.
- Nonvolatile memory.
- Built-in real-time clock, accuracy movement ±0,5 sec/day.
- Separate energy accounting till and after programmed limit within each tariff zone.
- Load control function (progammed switch off strategy).
- Profile of active power, supply voltage and temperature.
- RS-485 communication interface supports ModBus- similar, SET-4ÒÌ.02 compatible exchange protocol.
- Increased reliability (no aluminium electrolytic capacitors).
- Programmable pulse output.
FUNCTIONAL CAPABILITIES
The electricity meters are intended for multitariff accounting of active energy within 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. In every tariff zone separate energy accounting is used till and after programmed limit (e.g. social limit).
The electricity meters keep records of the measured active energy: 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.
As an option the electricity meters can have a load control function (load is switched on/off under different programmed criteria) and can be used as a component of prepayment systems.
As an option the electricity meters keep a four-channel profile array of active power, network voltage, load current and temperature with programmable integration time from 1 to 60 minutes.
Storing depth of profile array with integration time of 30 minutes is 56 days.
The electricity meters measure instantaneous values of physical quantities characterizing single-phase power network and can be used for measuring: instantaneous active, reactive and total power, network voltage, voltage of built-in battery, current, power factor, network frequency, temperature inside the meter.
The electricity meters can be used as power-quality meters under parameters of steady-state network frequency and under parameters of steady-state voltage.
The electricity meters have a liquid-crystal display to indicate the data on the measured energy and values of measured physical quantities.
The electricity meters allow to form signals indicating programmed active power threshold exceeding at the configure test output.
The electricity meters keep event logs, power-quality logs, a log concerning power threshold exceeding and a status log.
The electricity meters provide the possibility to read, programme and reprogramme parameters and data through the interface (list of parameters and data is in type specification).
TECHNICAL DATA
Quantity | Value |
Base (maximum) current, À | 5(75) |
Sensitivity current, mÀ | 12,5 |
Nominal voltage, V | 230 |
Fixed (extended) working voltage range, V | from 176 to 265 (from 160 to 265) |
Network frequency, Hz | 50 |
Working range of network frequency, Hz | from 47,5 to 52,5 |
Accuracy class when measuring active energy | 1,0 |
| Maximum permissible main error when measuring, %: |
| network voltage and its average value | _clip_image001.gif)
in the working voltage range; ± 0,9 at Ib≤ I ≤ Imax; |
| current | _clip_image003.gif)
at 0,05 Ib≤ I≤ Ib |
| network frequency and its average value | ± 0,05 in the range from 47,5 to 52,5 Hz |
Active (total) power consumed by parallel voltage circuit, W (V·À) | not more than 1,6 (4,0) |
Total power consumed by serial circuit, V·À | not more than 0,2 |
Number of indicated liquid-crystal display digits | 8 |
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 +55 °Ñ
when the meter is switched off in the temperature range from -10 to +70 °Ñ |
less than ± 0,1;
less than ± 0,22 |
Transmission ratio, pulses/kwh:
in the main mode (À)
in the calibration mode (V) |
500
16000 |
Rate of data exchange through RS-485 interface, bit/sec | 9600, 4800, 2400, 1200, 600, 300 |
Data protection | Two access levels and memory hardware protection of metrological factors |
Self-diagnostics | Iterative, incessant |
Working and service conditions:
ambient air temperature, °Ñ
relative humidity, %
pressure, kPa (mm of mercury) |
from -40 to +55;
90 at 30 °Ñ;
from 70 to 106,7 (from 537 to 800) |
Recalibration interval, years | 10 |
Guaranteed service life, months | 36 |
Data saving when switching off the power supply, years | 40 |
Average error-free running time | 90000 h |
Average service life | 30 years |
Mass | 0,7 kg |
Measurements
SEB-1ÒÌ.02D modification is to be fixed on DIN-bar | 179õ138õ68,5 mm
110x108x65 mm |
