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ES4000 Power Quality Analyzer
ES4000 power quality analyzer is a three-phase, multi-functional, intelligent and simple man-machine operation comprehensive test instrument specially developed by our company for field testing. It has the characteristics of easy to use, large LCD color screen display, high resolution, Chinese and English bilingual operation interface, box-type structure shell and so on. It can measure 4 currents (ABC three-phase and neutral current), 4 voltages (ABC three-phase voltage and neutral-to-ground voltage), the peak value of current and voltage, the maximum and minimum values within a period of time, and the three-phase voltage. Balance, short-term voltage flicker, transformer K factor, active power, reactive power, apparent power, power factor, displacement power factor, active energy, reactive energy, apparent energy, harmonic ratio, total harmonic distortion Display the real-time waveform of current and voltage, phasor diagram, harmonic ratio bar chart; dynamically capture the instantaneous change of voltage and current, monitor starting current, monitor various power parameters and generate alarm list, record test data for a long time and generate trend curve functions such as graphs.
In the current power application, the faults caused by more and more large-scale electrical equipment and more and more complex power grid systems are becoming more and more complex, and it is more and more difficult to troubleshoot. The requirements are also getting higher and higher, so we provide this kind of measurement and analysis instrument that can troubleshoot complex power systems more quickly and accurately, and monitor and maintain power quality parameters more comprehensively and systematically.
ES4000 power quality analyzer adopts DSP+ARM dual-processor architecture, DSP is responsible for data acquisition and algorithm processing, ARM is responsible for communication protocol and human-machine interface processing; analog signal acquisition uses 2 pieces of ADI company's 4-channel synchronization with a resolution of 16 bits Sampling, to achieve the highest sampling rate of 1MSPS, to ensure the accuracy and information integrity of the channel, to ensure that any transient changes in the power grid will not be missed, and to detect transient waveforms, swells and sags, and instantaneous interruptions. Accurate; DSP operating frequency is above 200MHz, which can monitor the power grid in time and dynamically adjust the sampling frequency to achieve synchronization of power frequency and sampling frequency; 5.6-inch LCD color screen display with a resolution of 640dots × 480dots, with different colors to display the parameters of each phase, Waveform diagrams, phasor diagrams, and harmonic ratio diagrams enable users to understand the state of power grid parameters more efficiently and intuitively. The built-in flash memory can simultaneously store 60 sets of screenshots, 150 sets of transient voltage/current capture waveforms, 12800 sets of alarm logs, and the startup current detection mode can continuously capture 100s of startup current waveforms. The built-in 2G memory card is used to store long-term trend curve records, and records 20 power parameters at the same time (can be selected according to needs).
Power quality analyzer, also known as intelligent three-phase power quality analyzer, multi-functional power quality analyzer, three-phase power quality analyzer, etc., is suitable for electric power, petrochemical, metallurgy, railway, industrial and mining enterprises, scientific research institutions, measurement departments, etc. . It is especially suitable for comprehensive analysis and diagnosis of all voltage, current, power, electrical energy, harmonics, phase and other electrical parameters.
Basic Function Introduction
1. Test function：
Real-time display of waveforms (4 channels of voltage/4 channels of current)
Voltage and Current True RMS
Voltage DC component
Current and voltage peaks
Current and voltage max/min over time
Phasor Diagram Display
Measurement of harmonics of each phase, up to the 50th harmonic
Bar graph showing harmonic ratio of current and voltage of each phase
Calculation of Total Harmonic Distortion (THD)
Active/reactive/apparent power value and total value of each phase
Active/reactive/apparent energy value and total value of each phase
Transformer K Factor Calculation
Calculation of COSφ Displacement Power Factor (DPF) and Power Factor (PF)
flicker calculation
Three-phase unbalance calculation (voltage and current)
2. Capture and monitor functions:
It can capture and detect the instantaneous changes of grid voltage and current parameters, including voltage and current fluctuations, voltage and current swells, dips, short-term interruptions, transient overvoltages, inrush currents, and instantaneous current and voltage distortions. The instrument can store up to 150 sets of transient waveforms at the same time.
3. Start current monitoring:
It can monitor the inrush current of the line and the starting current when the electrical equipment is started, which is helpful for the correct design of the installed capacity. It can display the rising/falling curve of the effective value of the starting process, the envelope curve of the starting current, and the 4-way current and 4-way voltage waveforms. After triggering, it can record about 100s, and store all current and voltage instantaneous values and waveform curves of each cycle within 100s.
4. Record storage function:
All test parameters of basic test functions (Urms, Uthd, Ucf, Uunb, Hz, Vrms, Vthd, Vcf, Vunb, PST, Arms, Athd, Acf, Aunb, KF, W, VAR, VA, PF, COSφ, TANφ), the 50th harmonic of voltage, the 50th harmonic of current, a total of 123 parameters are recorded, and a trend curve graph is generated, which can record data for a long time as needed. (Select 20 parameters at the same time and record once every 5 seconds, about 300 days can be recorded)
5. Alarm function:
Limits can be set for the selected parameters as required, monitoring whether they exceed the limits, and alarm logs are generated when the limits are exceeded, such as voltage overvoltage, current overcurrent, unbalance exceeding the limit, a certain harmonic ratio exceeding the limit, frequency Over limit, active power over limit, total harmonic distortion over limit, etc., up to 40 groups of alarm monitoring parameters can be set, and each group can be set with different monitoring parameters (including 50 harmonics, a total of 123 different parameters) and limit value to set the minimum time for exceeding the limit. Up to 12800 groups of alarm log records can be stored.
6. Screenshot function:
On any test page, you can take a screenshot to store the current screen, and automatically save the recording time and the test mode you are in. Such as saving current and voltage waves, harmonic histograms, phasor diagrams, etc. Up to 60 groups of screenshots can be saved at the same time
7. Communication function:
The monitoring software can communicate with the computer through USB, and the monitoring software can display the waveform of the power quality analysis test in real time, and can read the detected and captured transient waveform, trend chart record, alarm list, test screenshots, etc.
8. Setting function:
Users can set the time and date, set the contrast and brightness of the display screen, and set the corresponding color of each phase line in the instrument;
The wiring method and grid type of the instrument can be set;
Different current clamps and different voltage test ratios can be selected;
Chinese menu or English menu can be selected.
9. Chinese/English help menu:
At each stage of the operation, you can press the "Help" button at any time to obtain relevant help information.
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