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The screen display and human-computer interaction functions

Function Introduction of Electric Power Usage Monitor1. Display in Chinese and EnglishUsing LCD large screen liquid crystal display, the Chinese and English interfaces can be switched, which is very suitable for China’s national conditions. The measurement functions include: the functions of a three-phase four-wire loop or any other wire system for all phase voltage/line voltage (V), current (I), power (P, Q, S), electric energy (Wh, Qh), power factor (PF), frequency (F) and zero sequence current (I0)2.

It can replace the existing ammeter, voltmeter, frequency meter, power factor meter, active and reactive power meter, electric energy meter, digital display meter, etc. Multiple measuring functionsIt has powerful functions. It can be divided into pages to query all measurement and calculation data and set parameters. It can measure parameters such as phase, line voltage (V), current (I), power (P, Q, S), electric energy (Wh, Qh), power factor (PF), frequency (F) and the like of the power grid in real time, and can be transmitted, output and communicated in a variable manner.

The display adopts a yellow-green backlight which is more natural and comfortable for human eyes. The over-limit alarm function includes over-current over-limit, power over-limit, over-voltage over-limit, low voltage over-limit, frequency over-limit, low power factor over-limit, etc.4 communication function5.Main uses of electric power usage monitor: theelectric power usage monitoris a multi-functional power monitoring instrument adopting embedded technology, data acquisition technology, digital signal processing technology, etc. Up to 4 parameters can be displayed at the same time, and more than 30 parameters can be read out in sequence through manual or automatic setting.

The screen display and human-computer interaction functions are simple to operate, and local human-computer interaction can be realized by switching display contents through keyboard operation; It allows operators to set parameters and achieve local control operations. An out-of-limit alarm may China single-phase relay Suppliers be associated with a relay.. Note: This is an optional function. It integrates some or all functions of electric quantity transmitter, digital watt-hour meter, digital display meter, data collector, recording analyzer, RTU and other instruments. When an associated electrical quantity is detected to exceed the limit, the associated relay will output an alarm signal.3

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