一、功能特點
1.?便攜式微電腦型電能質(zhì)量分析裝置,是專門用于檢測電網(wǎng)中發(fā)生波形畸變、諧波含量、電壓波動與閃變和三相不平衡等電能質(zhì)量問題的高精度測試儀器裝置;同時還具備電參量測試、矢量分析的功能。
2.?可**測量電壓、電流、有功功率、無功功率、相角、功率因數(shù)、頻率等多種電參量。
3.?可顯示被測電壓和電流的矢量圖,用戶可以通過分析矢量圖得出計量設備接線的正確與否。
4.?電流可采用鉗形互感器和直接接入兩種方式進行測量。當采用鉗形電流互感器測量時操作人員無須斷開電流回路,就可以方便、安全的進行測量;當需要對數(shù)值進行更高精度的測量時,可采取直接接線的方式,能**程度的保證測試數(shù)據(jù)的準確度。
5.?可測量分析公用電網(wǎng)供到用戶端的交流電能質(zhì)量,其測量分析:頻率偏差、電壓偏差、電壓波動、閃變、三相電壓允許不平衡度和電網(wǎng)諧波。
6.?可顯示單相電壓、電流波形并可同時顯示三相電壓、電流波形。
7.?所有測試界面具備屏幕鎖定功能,以方便用戶讀數(shù)和分析數(shù)據(jù)。
8.?負荷波動監(jiān)視:測量分析各種用電設備在不同運行狀態(tài)下對公用電網(wǎng)電能質(zhì)量造成的波動。定時記錄和存儲電壓、電流、有功功率、無功功率、視在功率、頻率、相位等電力參數(shù)的變化趨勢。
9.?電力設備調(diào)整及運行過程動態(tài)監(jiān)視,幫助用戶解決電力設備調(diào)整及投運過程中出現(xiàn)的問題。
10.?能夠測試分析電力系統(tǒng)中無功補償及濾波裝置動態(tài)參數(shù)并對其功能和技術(shù)指標作出定量評價。
11.?可設置不同的存儲間隔時間,按設置的時間間隔連續(xù)存儲數(shù)據(jù)。
12.?內(nèi)置大容量數(shù)據(jù)存儲器,按1分鐘的時間間隔可連續(xù)存儲18個月以上,能滿足長期監(jiān)測試驗點的需要。
13.?儀器具備USB接口,可方便的將數(shù)據(jù)直接拷貝到后臺管理計算機。
14.?與功能強大的數(shù)據(jù)管理軟件配合,可將實時采樣數(shù)據(jù)直接上傳到后臺管理計算機,在后臺進行更全面、更迅速的處理。
15.?配備有萬年歷、時鐘功能,能實時顯示日期和時間??稍诂F(xiàn)場檢測的同時保存測試數(shù)據(jù)和結(jié)果,并通過串口上傳至計算機,通過后臺管理軟件(選配件)實現(xiàn)數(shù)據(jù)微機化管理,具備強大的報表功能。
16.?采用大屏幕進口彩色液晶作為顯示器,中英文操作界面并配有雙語文字提示信息、多參量顯示的液晶顯示界面,人機對話界面簡單易操作。
17.?5分鐘無操作,液晶顯示將會自動關閉,以便**程度的延長電池工作時間。
18.?導電硅膠按鍵,手感好、壽命長、設計合理、操作方便。
19.?內(nèi)置大容量、高性能鋰離子充電電池,充滿電連續(xù)工作6小時以上。
20.?體積小、重量輕,便于攜帶,既可用于現(xiàn)場測量使用,也可用做實驗室的標準計量設備。
Features
1. NAQH3?Portable?Microcomputer Power Quality Analysis Set, this?instrument is designedtodetectccurrence ofwaveform distortion grid, high-precision test equipment harmonic content, voltage fluctuation and flicker and unbalanced three-phase power quality issues; also haselectricalparametersof the testvector analysis functions.
2. This set can accurately measure a variety of electrical parameters of voltage, current, activepower,reactivepower, phaseangle, power factor and frequency.
3. It also can display measured voltage and current vector, user can draw metering device wiring if correctornotby analyzingvector.
4. Current clamp transformer and can be connected directly measured in two ways. When splitcorecurrenttransformers measureoperator, without disconnecting current loop, it can easily and safely be measured; when the values need to be more accurate measurements can be taken directly toawiredconnection, to greatest degreeof assurance accuracy of test data.
5. Analysis of measurable utility grid supply AC power to the client\'s quality, its measurementandanalysis:frequency deviation,voltage deviation, voltage fluctuation, flicker, phase voltage unbalance and harmonic.
6. This set can display single-phase voltage and current waveforms, can display three-phase voltageandcurrentwaveforms.
7. All test interface with a screen lock feature to facilitate reading and analysis of user data.
8. Monitoring of load fluctuations: Measurement and analysis of fluctuations variety of electricalequipmentindifferent operatingconditions on utility grid power quality caused. Timing recording and storage of voltage, current, active power, reactive power, apparent power, frequency, phase,andotherelectrical parameterstrends.
9. Adjustment and operation of electrical equipment dynamic monitoring process to help users solvethepowerequipment Adjustmentand commissioning process problems.
10. This analysis set can test power system reactive power compensation and filtering device, canmakeaquantitative evaluation ofdynamic parameters of their functions and technical specifications.
11. You can set a different storage time intervals, according to the set time interval betweensuccessivestoringdata.
12. Built-in high-capacity data storage, at one minute intervals may be stored continuously for 18 monthsormore,to meet the needsof long-term monitoring of test point.
13. The instrument includes a USB interface, you can easily copy the data directly tobackstagemanagementcomputer.
14. It have powerful data management software, real-time sampling data can be uploaded directly tothebackgroundmanagementcomputer, in background a more comprehensive and more rapid treatment.
15. with calendar, clock function, real-time display date and time. In the field of detection whilepreservingtestdata andresults, and uploaded to computer through serial port, computerized data management through background management software (optional), with strong reporting capabilities.
16. Use imported large-screen color LCD as display, English & Chinese interface, English andChinesecharacterswith message,multi-parameter display LCD interface, friendly interface English & Chinese man-machine dialogue.
17. Have five minutes no operation LCD automatically turns off, in order to maximize the extendedbatterylife.
18. The conductive silicone keys, feel good, long life, reasonable design, easy to operate.
19. Built-in high-capacity, high-performance lithium-ion rechargeable battery, full power continuouslyformorethan six hours.
20. Small size, light weight, easy to carry, both for on-site measurements, can also be usedaslaboratorystandards meteringequipment.
二、技術(shù)指標
1.?輸入特性
???電壓測量范圍:0~200V~800V兩檔。
???電流測量范圍:
???內(nèi)置互感器:5A(CT)檔0.05~5A(選配)
????鉗形互感器:0.05~5A~25A(標配)
????????????????10A~100A~500A(選配)
相角測量范圍:0~359.99°。
頻率測量范圍:45~55Hz。
電壓通道數(shù):三通道(UA、UB、UC)。
電流通道書:三通道(IA、IB、IC)。
**諧波分析次數(shù):64次。
1分鐘間隔**連續(xù)存儲周期:18個月。
2.?準確度
電參量測量部分:
電壓:±0.2%
頻率:±0.001Hz
電流、功率:±0.5%(鉗形互感器±1.0%)
相位:±0.1°(鉗形互感器±0.2°)
電能質(zhì)量部分:
基波電壓允許誤差≤0.5%F.S.
基波電流允許誤差: ≤1%F.S.
基波電壓和電流之間相位差的測量誤差:≤0.2°
諧波電壓含有率測量誤差:≤0.1%
諧波電流含有率測量誤差:≤0.2%
三相電壓不平衡度誤差:≤0.2%
電壓偏差誤差:≤0.2%
電壓變動誤差:≤0.2%
3.?工作溫度:-10℃~?+40℃
4.?充電電源:AC100V~220V、頻率45Hz-55Hz
5.?主機功耗:≤3VA
6.?電池**工作時間:≥6小時
7.?絕緣:⑴、電壓、電流輸入端對機殼的絕緣電阻≥100M?。
?????????⑵、工作電源輸入端對外殼之間承受工頻1.5KV(有效值),歷時1分鐘實驗。
8.?體積:260mm×160mm×60mm
9.?重量:1.6 Kg
Technical indicators
1. Input Characteristics
Voltage measuring range: 0 ~ 200V ~ 800V two tranches.
Current measurement range:
????Built-in transformer: 5A (CT) file 0.05 ~ 5A (optional)
????Clamp Transformer: 0.05 ~ 5A ~ 25A (standard)
????????????????10A ~ 100A~500A(optional)
Phase angle measuring range: 0 ~ 359.99 °.
Frequency Measurement Range: 45 ~ 55Hz.
Voltage channels: three-channel (UA, UB, UC).
Current Channel books: three-channel (IA, IB, IC).
The maximum number of harmonic analysis: 64 times.
At one minute intervals Maximum continuous storage period: 18 months.
2. Accuracy
Measurement of electrical parameters section:
Voltage: ± 0.2%
Frequency: ± 0.001Hz
Current, power: ± 0.5% (clamp transformer ± 1.0%)
Phase: ± 0.1 ° (clamp transformer ± 0.2 °)
Power quality parts:
Fundamental voltage tolerance ≤0.5% F.S.
Fundamental current allowable error: ≤1% F.S.
Phase measurement error between the fundamental voltage and current: ≤0.2 °
Harmonic voltage measurement error: ≤0.1%
Harmonic content of current measurement error: ≤0.2%
Three-phase voltage unbalance error: ≤0.2%
Voltage deviation error: ≤0.2%
Voltage fluctuation error: ≤0.2%
3. Working temperature: -10 ℃ ~ + 40 ℃
4. Charging power supply: AC100V ~ 220V, 45Hz-55Hz frequency
5. Host Power: ≤3VA
6. Maximum battery operating time: ≥6 hours
7. Insulation:
⑴, voltage, current input on the chassis insulation resistance ≥100MΩ.
⑵, working between the power input to the shell to withstand frequency 1.5KV (rms), for one minuteexperiment.
8. Volume: 260mm × 160mm × 60mm
9. Weight: 1.6 Kg