Three phase three wire intelligent energy meter

electricity metering

measurementForward and backwardCombinationmeritoriousGeneral, sharp, peak, flat, valleyelectric energyThe combination of active power can be set arbitrarily according to the characteristic words of the active power combination method；measurementfour quadrantsCombination1Combination2no meritGeneral, sharp, peak, flat, valleyelectric energy. Combination1And combination2The reactive power metering mode can be based on reactive power combinations1Combined with reactive power2Method characteristic wordsPerform selective addition and subtraction combinations.

Quantity measurement

canrecordPositive and negative active power, reactive power in quadrants 1, 2, 3, and 4, combined reactive power demand and occurrence time of 1 and 2；The demand calculation adopts the slip method. The demand cycle and slip time can be set within the range of 1 to 60 minutes.

Clock and Timing

The electric energy meter has a built-in hardware clock with temperature compensation function; Clock accuracy ≤±0.5s/d；Time calibration of the electric energy meter can be achieved through RS485 and infrared communication interfaces (requires programming switch and communication password coordination)；Broadcast timing (without the need for programming switches and communication passwords), but only once a day is allowed, and the timing range does not exceed 5 minutes. Energy meters with an error greater than 5 minutes can only be calibrated on site.

Time slot rate

The energy meter can support switching between four rates (peak, off peak, off peak, and off peak)；haveTwo sets of time zone tables and two sets of daily time zone table schemes, as well as their respective switching times (year, month, day, hour, and minute)The automatic switching between two rate schemes can be achieved by pre-set time；Each rate period plan can set up 14 time zones throughout the year, with each time zone setting a starting date and the time period table number used. You can set 14 time periods per day, each with a starting time and usage rate.

Electricity freeze

Instantaneous freeze: After receiving the instantaneous freeze command, the meter freezes all current electricity data, time, and some important measurement data, and saves the last 3 instantaneous freeze data.

Timed Freeze: It can be set to freeze on an hourly, daily, and monthly basis, saving the last 60 timed freeze data.

Daily Freeze: The daily freeze time can be set, and the default freeze time is 00:00. It can store the daily freeze data of the last 62 days.

Agreed Freeze: Freeze the electricity and other important data at the agreed time of switching between the primary and secondary annual time zone schemes/daily time zone table schemes/rate schemes/tiered electricity pricing schemes, and store the last two switching records for each.

Measurement and monitoring

This instrument measures the total voltage, current, phase angle, apparent power, active power, reactive power, power factor, and grid frequency of phases A and C in real time, and displays the direction of power.

communication

RS485， infrared communication