In the current electric power application, the faults caused by more and more large electrical equipment and more and more complex power grid system are becoming more and more complex and difficult to troubleshoot. Besides, the development of various industries has higher and higher requirements on the power quality of the power grid. Therefore, we provide this kind of system which can eliminate the faults of complex power system more quickly and accurately, and monitor them more comprehensively and systematically Measuring and analyzing instruments for measuring and maintaining power quality parameters.
VICTOR5000电能质量分析仪采用
DSP ARM dual-processor architecture,DSP is responsible for data acquisition and algorithm processing,ARM is responsible for communication protocol and man-machine interface processing; The analog signal acquisition is completed by two ADI 4-channel synchronous sampling AD7655 with 16-bit resolution, achieving the maximum sampling rate of 1MSPS, ensuring the accuracy of the channel and information integrity, and not missing any transient changes in the power grid, so that the detection of transient waveform, sudden rise and fall, instantaneous interruption and so on is more accurate. The working frequency of DSP is more than 200MHz, which can timely monitor the power grid and dynamically adjust the sampling frequency to realize synchronization of power frequency and sampling frequency. Using 5.6 inch LCD color screen disy, resolution of 640dots×480dots, with different colors to disy the parameters of each phase, waveform diagram, phasor diagram, harmonic ratio diagram, users can more efficient and more intuitive understanding of the grid parameter state. The built-in flash memory can simultaneously store 60 sets of screen shots,150 sets of transient voltage/current capture waveforms, 12,800 sets of alarm logs, and start current detection mode can continuously capture 100s of start current waveforms. The built-in 2G memory card is used to store long-term trend curve records, record 20 power parameters at the same time (you can select as required), collect and record once 5s, and record trend curve records for up to 300 days
电能质量分析仪又名
智能型三相电能质量分析仪、
多功能电能质量分析仪、
三相电力质量分析仪等,同时具有
Harmonics分析仪、
相位伏安表、
电力参数测试仪等仪器的功能.适用于电力、石化、冶金、铁路、工矿企业、科研校、计量部门等.尤其适用于对有的电压、Current、功率、电能、Harmonics、相位等电量参数做全面分析和诊断.
1.2 Functions
1.2.1
Basic function:
Waveform real-time disy (4-way voltage / 4-way current).
True effective value of voltage and current
Voltage DC component.
Peak current and voltage.
Maximum/minimum RMS value of current and voltage half cycle.
Phasor diagram shows.
Measurement of harmonics of each phase, up to 50 harmonics
The bar chart shows the harmonic content of each phase current and voltage
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.
K factor of transformer.
Power factor (PF) and COSφ discement power factor (DPF).
Short-term voltage flicker.
Three-phase unbalance (voltage and current)
1.2.2
Capture and record function:
◆
Transient capture function:
It can capture and detect the instantaneous changes of voltage and current parameters of the power grid, including voltage and current fluctuations, voltage and current sudden rise, sudden drop, short time interruption, transient overvoltage, impulse current, instantaneous distortion of current and voltage. Instruments can be stored at most simultaneously
150 transient waveforms.
◆
Starting current monitoring:
It can monitor the surge current of the line, and monitor the starting current when the electrical equipment starts, which helps to design the installed capacity correctly. Disys the rise in valid values for the startup process
/ Down curve, starting current envelope curve, 4-way current and 4-way voltage waveform. After it can be triggered, it can record about 100s, and store all the instantaneous value of current and voltage in each cycle within 100s, waveform curve
◆
Trend chart record storage function:
All test parameters available for the basic test function
(Urms Uthd, Ucf Uunb, Hz, Vrms, Vthd, Vcf, Vunb, PST, very different, Athd, Acf, Aunb, KF, W, VAR, VA, PF, COS phi, TAN phi), 50 harmonics, voltage of 50 times harmonic current, a total of 123 parameters for recording, A trend chart can be generated to record data for a long time as required (select 20 parameters and record them every 5 seconds for about 300 days)
◆
Alarm function:
Limit values can be set for the selected parameters according to needs to monitor whether they exceed the limit. Alarm logs will be generated when the limit is exceeded, such as voltage overvoltage, current overcurrent, unbalance degree exceeding the limit, certain harmonic ratio exceeding the limit, frequency exceeding the limit, active power exceeding the limit, total harmonic distortion exceeding the limit. The maximum can be set
40 groups of alarm monitoring parameters, each group can set different monitoring parameters (including 50 harmonics, 123 different parameters) and limits, can set the minimum time beyond the limit. A maximum of 12800 alarm log groups can be stored.
◆
Screenshot function:
In any test page can take a screenshot to store the current screen picture, while automatically saving the record time and test mode. For example, you can save screen pictures of current and voltage waveforms, harmonic column graphs, phasor graphs, etc. At most, it can be saved simultaneously
60 sets of screenshots.
1.2.3
Other functions
◆
Communication function:
Pass
USB与电脑进行通讯,监控软件可实时显示电能质量分析测试的波形,可读取侦测和捕捉的暂态波形、趋势图记录、告警日志、截图等,并显示在电脑上.
◆
Setting function:
The user can set the time and date, set the contrast and brightness of the disy, and set the corresponding color of each phase waveform curve in the instrument
The wiring mode of the instrument and the type of the power network can be set
Different current clamp and different voltage test ratio can be selected
You can select the Chinese menu or English menu.
◆
Middle
/ English help menu:
Each stage of the operation can be pressed at any time
Click the Help key to obtain help information.
1.3 Technical Specifications
1.3.1
Reference and operating conditions
The amount of influence |
Test item |
Base condition |
Working conditions |
Ambient temperature |
All parameters |
(23±2)℃ |
-10℃~40℃ |
Relative humidity |
All parameters |
40%~60% |
<80% |
Phase voltage |
All parameters |
(100±1%)V |
1.0V~1000V |
Line voltage |
测Line voltage真有效值 |
(200±1%)V |
1.0V~2000V |
Current |
测Current真有效值 |
(5±1%)A |
10mA~3000A |
Grid frequency |
All parameters |
50Hz±0.1Hz |
40Hz~70Hz |
Phase shift |
Active power Active electric energy |
Cosφ=1 |
Cosφ:0.2~1.0 |
Measuring reactive power Reactive power |
Sinφ=1 |
Sinφ:0.2~1.0 |
|
Harmonics |
All parameters |
<0.1% |
0.0%~ |
Voltage unbalance degree |
All parameters |
<10% |
0.0%~ |
Instrument operating voltage |
All parameters |
DC9.8V±0.1V |
DC9.5V~10.5V |
External electric field, magnetic field |
All parameters |
Should be avoided |
|
Position of the measured conductor |
测与Current有关的参量 |
被测导线处于钳口的近似几何Middle心位置 |