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In the production process of electric energy meters, Yongtailong is controlled in accordance with the ISO9000 international standard quality management system. In the ISO9000 standard, the product production process needs to be traced; For Yongtailong energy meter at the use site, as long as the product number is feedback, it can be traced back to the brand, batch number, production time, operators of each process and the original data of the production process. For the system platform, when we perform login operations, who and when we log in, and what operations are carried out; smart Watt hour meter also have an operation recording function, that is, event recording.
What is the event record of energy meter?
The event record of energy meter refers to the occurrence of certain specific conditions in the field operation environment or the special status of energy meter, which means that an event has occurred. The smart meter can automatically record and save the event-related type information, time of occurrence, end time, number of occurrences, etc. in real time. With the development of single phase smart kWh meter, three phase Power meter and multi-phase smart meter, the function of power meter is more and more powerful, and the items of event record are also more and more.
The event record of power parameters: loss of voltage in each phase, phase breakage in each phase, loss of current in each phase and current reversal needs to record the moment of occurrence, the moment of ending and the corresponding electrical energy data, and store the last 10 times.
Event records for three-phase smart meters and multi-phase smart meters: the moment when voltage (current) reverse phase sequence, voltage (current) unbalance occurs, the moment when it ends and the corresponding electrical energy data, storing the last 10 times.
Event records of abnormalities during the operation of the meter: power failure, demand overrun, power supply abnormality, built-in load switch malfunction, battery undervoltage, overload of each phase, the moment it occurred, the moment it ended and the corresponding power data, storing the last 10 times.
Event record of command operation on the meter: zeroing of demand, time calibration, programming operation, time of pulling and closing of the switch, and operator code are recorded, and the last 10 times are stored.
Event record of power tamper: the time of constant magnetic field interference, meter cover opening, end button cover opening and the corresponding power data are stored for the last 10 times. For the meter with remote communication function, the alarm will be sent to the system platform in real time when the tamper occurs, so as to notify the relevant personnel to deal with it in time.
For abnormal events, the meter will not only record itself, but also mark the status of the event, and report the event when the data is uploaded at regular intervals. In the visual aspect, the LCD display, backlight or panel indicator of the meter will alert when an event occurs; the alarm will end automatically when the event returns to normal. The event record is like a medical history card or resume card of the working operation of the smart meter, which provides data support for analysis of power consumption abnormalities and problem solving.
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