- 3 phase electricity meterhas functions of clock, time period and tariff
The three-phase electric energy meter adopts a built-in hardware clock circuit with automatic switching functions of calendar, timing and leap year. The output frequency of the internal clock terminal is 1Hz. There are two sets of rate periods, which can be automatically switched between the two sets of rate periods by setting the time in advance.
- The three-phase electric energy meter has a time calibration function
The three-phase electric energy meter can calibrate the electric energy meter through the communication interface. In addition to the broadcast time calibration, the time calibration can only be carried out in the programming state. Broadcast time calibration does not require the cooperation of programming keys and communication passwords. It is only allowed once a day. The acceptable broadcast time calibration range of the electric energy meter shall not be greater than five minutes. If the correction time is greater than five minutes, the electric energy meter can only be adjusted on site.
- Three-phase electric energy meter has measurement and monitoring functions
The three-phase electric energy meter can measure, record, and display the current total of the electric energy meter and the operating parameters of each sub-phase voltage, current, power, and power factor. At the same time, it provides the over-limit monitoring function, which can set and monitor the line voltage, current, power factor and other parameters. When a parameter exceeds or falls below the set limit,mechanical kWh meter should be recorded in an event.
