Features of Three-Phase Four-Wire Electronic Prepaid Energy Meter

(1) *Record forward and reverse active energy,

*Combined active energy (programmed selection of net active energy, or absolute active energy).

*Four-phase limited reactive power, combined reactive power 1 (programming selection of forwarding reactive power or inductive reactive power), combined reactive power 2 (programming selection of forwarding reactive power or capacitive reactive power).

(2) Measurement accuracy:

Active energy level 1S: in line with IEC62052-21

Reactive energy level 2: in line with IEC62052-23.

(3) High-precision measurement of the starting current to the maximum current in a wide range.

(4) Multi-rate metering: Active power, reactive power, and apparent power are measured according to the rating period.

(5) LCD liquid crystal display data, indicating power direction and corresponding prompts.

(6) Calculation method of maximum demand. Slip time can be set.

(7) Real-time measurement, recording, and monitoring of electrical parameters such as voltage, current, frequency, active/reactive/apparent power, and power factor of each phase.

(8) Load curve recording (programmable selection of recording time interval, recording data items).

(9) Data freezing function. The measurement and measurement value can be frozen daily.

(10) Event record and save function. It can detect and record events such as voltage loss, current loss, phase failure, reverse direction, overcurrent, overvoltage, under-voltage, reverse phase sequence, tripping, closing, strong magnetic interference, and cover opening of each phase.

(11) Anti-theft function. Detect and record unauthorized opening of terminal cover.

(12) When an individual phase fails or is applied to a two-phase or single-phase power grid, the electric energy meter can still work normally and measure accurately.

(13) It has an optical communication interface conforming to IEC62056-21. Use the computer to directly read the meter data and use the multi-level key method to program on the spot.

(14) With RS-485 communication interface.

(15) You can choose to replace the communication module and expand the communication interface according to the actual application. Currently, it supports PLC, RF, and GPRS.

(16) The electric energy meter has a power failure display.

(17) Three-phase four-wire electronic prepaid electric energy meter can output electric energy test pulse and RTC clock pulse.