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EM9000 series power quality monitoring device
EM9000 series power quality monitoring device
Product details
EM9000 is a device for real-time monitoring of power quality in the power grid, which has functions such as harmonic analysis, waveform sampling and voltage surge/dip recording, flicker monitoring, voltage imbalance measurement, waveform transient capture, event recording, and measurement control. Adopting a 7-inch high brightness CD Chinese human-machine interface display screen, a new generation ARM processor and high-speed ADC sampling, it can sample 1024 points per week, and the basic measurement accuracy can reach 0.1 level. EM9000 has high measurement accuracy, rich measurement functions, strong anti-interference ability, and simple and convenient operation.
EM9000 is widely used in the medium and low voltage fields, such as photovoltaic power plants, wind power plants, and substations. It can also be applied to power quality monitoring in large industrial and mining enterprises.
function type |
Function Introduction |
Measurement and metering functions |
Three phase phase voltage and three-phase line voltage, zero sequence voltage Three phase current, zero sequence current Three phase active power and total active power Three phase reactive power and total reactive power Three phase apparent power and total apparent power Three phase active power measurement (input, output, total, net value) Three phase reactive power measurement (input, output, total, net value) Three phase apparent electrical measurement (input, output, total, net value) Three phase power factor and total power factor frequency |
Power quality measurement function |
Three phase voltage deviation and over limit alarm Frequency deviation and over limit alarm Voltage fluctuation analysis Short term flicker Pst calculation Long term flicker Plt calculation Harmonic distortion rate calculation and over limit alarm interharmonics Measurement of three-phase voltage/current imbalance The amplitude and phase of zero sequence, negative sequence, and positive sequence components of voltage The amplitude and phase of the zero sequence, negative sequence, and positive sequence components of the current Effective value, phase angle, and content of 2nd to 63rd harmonics Active and reactive power spectrum diagram High-speed recording |
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Data events recording function |
Event record data record Monitoring battery level exceeding limit |
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communication
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RS485 communication method MODBUS-RTU communication protocol 1200, 2400, 4800, 9600, 19200 baud rates are optional Photoelectric isolation Ethernet communication, Modbus TCP communication protocol |
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