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Bidirectional electric meters can be configured and consider:
TECHNICAL FEATURES OF THE ELECTRIC METER
FUNCTIONALITY OF THE ELECTRIC METER
Tariffing and archives of the considered energy
The electric meter keeps multitariff account of active and jet energy of the direct and opposite direction (depending on option of execution and a configuration).
The counter conducts archives of the rated considered electric power and not rated energy taking into account losses (active, jet the direct and opposite direction), and also the accounting of number of the impulses arriving from external devices on a digital entrance:
Loading power profiles
Bidirectional counters of the electric power conduct two independent massifs of a profile of power (active, jet, the direct and opposite direction):
Each massif of a profile of power can be configured for maintaining a profile of power of loading taking into account active and jet losses in a power line and the power transformer of integration from 1 to 30 minutes over time.
Registration of maxima of power of loading
The electric meter can be used as registrar of maxima of power (active, jet, the direct and opposite direction) on each massif of a profile of power with use of the twelve-seasonal schedule of morning and evening maxima.
Maxima of power are fixed in archives of the counter of the electric power:
Measurement of parameters of network and indicators of quality of electric energy
The electric meter measures instant values (integration time 1 second) the physical quantities characterizing three-phase electric network:
All options of execution of the electric meter, irrespective of a configuration, work as four-quadrant measuring instruments taking into account the direction and the angle of shift of phases between current and tension in each phase of network, can be used for assessment of correctness of connection of the counter.
The counter can be used as the measuring instrument of indicators of quality of the electric power in parameters of the established deviation phase (interphase, the direct sequence) tension and the frequency of network.
Test exits and digital entrances
In the electric meter two isolated test exits of the main sending device function. Each test exit can be configured for formation:
In the counter of the electric power one digital entrance which can be configured functions:
The counter keeps logs, magazines of indicators of quality of the electric power, magazines of excess of a threshold of power and the status magazine.
The counter has the liquid crystal indicator with illumination (ZhKI) for display of the considered energy and the measured sizes, and also three buttons of management of the indication modes.
The counter in the mode of indication of key parameters allows to display on the indicator the considered active and jet eletkroenergiya of the direct and opposite direction on each tariff and the sum of tariffs.
In addition the counter allows to display on the indicator:
The electric meter imeet two ravnoprioritetny independent galvanic isolated the communication interface ― RS-485 and optical port.
The electric meter provides a possibility of reading via interfaces of communication of contemporary records and the measured parameters of management a funktsiyamiya programming and reprogramming of various parameters.
In electric meters additional interfesny modules for ensuring remote access to the counter RS-485 interface through the relevant networks can be installed (GSM, PLC, Ethernet, RF). At the same time electric meters become communicators, and other counters of an object without additional interface modules, forming local network with a possibility of remote access to each electric meter of an object can be connected to their interface.
TECHNICAL CHARACTERISTICS OF THE ELECTRIC METER
passwords of three levels of access and hardware protection of memory of metrological coefficients
Operating conditions of operation:
temperature of air, °C
relative humidity at 30 °C, %
pressure, kPa (mm Hg)
group 4 in accordance with GOST 22261
from minus 40 to plus 60
from 70 to 106,7 (from 537 to 800)
Intertesting interval, years
Average operating time to the full, hour
Middle service life, years
Restoration time, hour
Weight, kg, no more
Overall dimensions, mm