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HENZ3-HR型電子式互感器校驗儀 |
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裝置的簡介: 數字(光電式、電子式)互感器作為模擬世界到數字世界的橋梁,在數字化變電站中占有舉足輕重的地位,可以認為數字(光電式、電子式)互感器是數字化變電站的基石,所有的數字量都是來源于它。因此數字(光電式、電子式)互感器的準確精密度和性能非常重要。我國計量法規定所有的計量器具都必須得到量傳,也就是說所有的計量器具都必須能夠實現量值朔源。因此在實際應用中需要對數字(光電式、電子式)互感器進行量傳,在現場安裝使用后也需要對其進行定期校驗,驗證其測量精度和穩定性,以及對IEC61850國際電工標準協議和規約的支持的正確性。
HENZ3-HR型電子式互感器校驗儀內核采用雙CPU架構,功能強,以24Bit
AD芯片和512倍過采樣技術大大擴展了帶寬,提高了測量精度。同時,采用多檔位自動切換和FIR濾波器提高動態范圍和信噪比。使用LabView開發管理軟件,界面美觀,使用方便。電源和采樣輸入采取了大量的電磁兼容措施,能夠適應復雜的現場測試環境。采用便攜式設計方案,方便實驗室和現場檢測。
HENZ3-HR型電子式互感器校驗儀是我公司互感器研發中心研發生產的一款新型的電子式互感器校驗儀,校驗儀采用數據采集卡+工控機結構。數據采集卡采用高精度數據采集卡,配合
NI 公司的全新虛擬儀器界面設計軟件 LabView,基于 WINDOWS 操作系統,軟件界面友好,功能強。適用于電子互感器模擬輸出和數字輸出的校驗和調試,可用于電子互感器基本準確度測試和復合誤差測試,是一款綜合功能的校驗儀。本裝置具有強大的軟件分析功能,可以直觀的顯示波形和各種有效數據,并具有數據存儲、離線分析等功能。
HENZ3-HR型電子式互感器數字輸出校驗系統由:1)標準互感器、2)標準信號轉換裝置、3)標準A/D轉換器、4)同步信號發生裝置、5)誤差管理計算單元組成。HENZ3-HR型電子式互感器校驗儀儀器自身具備有第2)~第5)項的功能,它還具備模擬輸出校驗功能,是一款測試電子式互感器數字輸出和模擬輸出誤差的綜合測試儀。全自動智能型測試檢定校驗儀器(全自動智能型電子式互感器檢定校驗系統含工控計算機測控誤差管理軟件及主機與校準的測試硬件設備配置)。
裝置參考執行的標準及規范:
JJG313-94《測量用電流互感器檢定規程》
JJG314-94《測量用電壓互感器檢定規程》
JJG169-93《互感器校驗儀檢定規程》
GB/T 20840-7《互感器第 7 部分:電子式電壓互感器》
GB/T 20840-8《互感器第 8 部分:電子式電流互感器》
IEC61850《變電站的通信網絡和系統》
DL/T668-1999《測量用互感器檢驗裝置》 裝置使用操作的環境條件:
本系統裝置滿足而且是專用于各電壓等級的數字(光電式、電子式)電壓(電流)互感器的試驗檢測及檢定校驗工作任務的。
1 海拔高度不超過1500m
2 環境溫度:-15~+55℃
3 空氣相對濕度:≤90%
4 使用地點:戶內/現場使用,可移動
5 必須設有一個可靠接地點,接地電阻<1Ω!
6 工作電源:AC 220V±10%,約800VA,電源電壓的波形為實際正弦波。
7 電源頻率:50/60 Hz。
8 無導電塵埃,無火災及爆炸危險,不含有腐蝕金屬和絕緣的氣體存在。 主要用途:
對符合IEC61850(-9-1、-9-2、-9-2LE)標準的電子式互感器進行校驗;對電子式互感器的極性和延時進行校驗;對小信號輸出的電子式互感器進行校驗;對小信號輸入的合并單元進行校驗;可輸出兩路0.05級0~7V的精密電壓信號,無需升大電壓大電流即可;對小信號輸入的合并單元進行校驗(擴展精密標準源模塊);能夠輸出數字信號源(FT3格式),無需升大電壓大電流即可對支持FT3輸入的合并單元進行校驗。(擴展數字信號源模塊);能夠對FT3輸出的電子式互感器進行校驗(擴展FT3轉換模塊);能夠對傳統互感器進行校驗(擴展模擬信號轉換模塊)。
主要特點: HENZ3-HR型電子式互感器校驗儀主要用于對符合IEC61850(-9-1、-9-2、-9-2LE)標準輸出的電子式互感器進行校驗。校驗項目包括:比值差、相位差、延時、極性等。同時配置有小信號輸入端子,可對小信號輸出的電子式互感器進行校驗以及對小信號輸入的合并單元進行校驗等。
主要功能:
1. 使用傳統互感器校驗裝置(BHE型)和Agilent 3458A數字多用表實現量值傳遞。
2. 可使用內置的GPS或高穩定度的晶體輸出脈沖同步信號。
3. 能對IEC61850(-9-1、-9-2、-9-2LE)的協議包進行全幀解析,自動分析ASDU個數,
采樣點數等,可顯示所有通道波形圖,無需抓包即可直觀,查看所有通道數據。
4. 具有ST/SC雙光纖以太網接口和雙RJ45以太網接口,提高可靠性,
同時方便接入不同接口的電子式互感器。
5. 階準同步算法使得非同步采樣的算法誤差逼近于零。
6. 采用24Bit AD芯片和512倍過采樣技術,大大擴展帶寬提高精度。
7. 采用多檔位自動切換和FIR濾波器提高動態范圍和降低信噪比。
8. 實時顯示波形、頻率、幅度、相位等數據便于綜合分析互感器性能。
9. 帶有工控機,800*600觸摸屏。更能方便操作。
10. 配有功能強,操作簡便的操作軟件,可運行于工控機或筆記本
11. 可統計比值差及相位差的均值、變差、極值、多次誤差等數據,
可對電子式互感器的穩定性及線性進行全面檢定。
12. 可進行多次諧波分析及對電子式互感器的各次諧波精度進行校驗。
13. 可對測試過程全程錄制及回放。
14. 可進行丟幀測試,實時的統計丟幀數。 主要技術指標:
1. 準確度等級:0.05級(比差誤差:≤0.02%,相差誤差:≤0.02°(即:角差< 2'))。
內置標準轉換裝置:準確精度級別0.05%級、0.02%級、0.01%級。
可依據標準互感器和被;ジ衅鞯木芏燃墑e而定,選擇匹配對應調節轉換裝置即可檢定校驗了。
被校驗等級:5、3、1、0.5、0.2、0.1、0.5S、0.2S;
2. 通信協議和規約: IEC61850-9-1/ IEC61850-9-2/ IEC61850-9-2LE
3. 標準信號輸入范圍:
1)額定電壓輸入量程:100V和100/√3V、100/3V
2)額定電流輸入量程:1A、5A
3) 小信號輸入量程 150mV、200mV、225mV、4V、1.625V、1V、2V、3.25V、4V、6.5V
4)模擬量輸入:信號類型100V和1A/5A。
數字量輸入:采用ST型光纖連接器,使用62.5/125多模光纖接口。
4. 精確度測量范圍
電壓(V):5%-120%Un (有效值 0.05%RD Un =100/√3V或100V)
電流(A):1%-120%In (有效值 0.05%RD In=1A 和 5A)
小信號輸入:1V以上量程:1%-120%Un 0.05S級(用于檢計量互感器 )
1V以下量程:100%~2000%Un 0.05%級(用于檢保護互感器)
5. 諧波測試精度:比差 0.1%Uh 或 0.1%Ih 角差: 10分
6. AD采樣精度:在額定量程幅度測量不確定度優于 0.01%
7. 小信號輸出(選配,另外付費的功能)
輸出電壓: 0~ 7V
輸出諧波: 2~ 40次
輸出精度: 0.05~5V 0.05%RD
諧波精度: 0.05%
8. 輸入回路功耗
輸入電壓回路功耗 < 0.2VA (100V、57.7V)
輸入電流回路功耗 < 1VA (5A)
輸入電流回路功耗 < 0.2VA (1A)
9. 以太網接口
SC光纖接口: 1個(多模光纖波長820nm~860nm)
ST光纖接口: 1個(多模光纖波長820nm~860nm)
RJ45 接口 2個
光信號工作波長為820nm~860nm,光纖用62.5/125 多模玻璃光纖接口。
10. 同步
光B碼同步輸入(秒脈沖和B碼可配置 ) 1個
光B碼同步輸出(秒脈沖和B碼可配置 ) 1個
電同步輸入1個,電同步輸出1個
11. 人機接口
顯示: TFT液晶分辨率800*600
操作: 觸摸屏操作,工控機有USB口,可連接USB的鼠標鍵盤。
12. 整機重量 ≤12.8kg
13. 供電電源電壓220V±10%,50/60Hz
14. 外部空氣溫度(-15℃ ~ 55℃)
15. 最大相對濕度:<90% |
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產品實物圖片: |
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裝置功能及軟件功能: |
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電子式互感器數字輸出校驗的原理圖如圖1數字輸出校驗系統框圖
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電子式互感器數字輸出校驗系統的軟件開發界面如圖3所示,其軟件功能和操作說明介紹如下: |
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電子式互感器模擬輸出校驗系統的軟件開發界面如圖 4 所示,其軟件功能和操作說明與數字量輸出校驗系統類似,設置相對簡單。測試時,模擬信號通過面板上三芯航插UxA連接至被校測的互感器。 |
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電子式互感器模擬輸出校驗系統
校驗系統軟件分三個功能界面,分別是誤差檢定、參數設置、通訊設置。電子式互感器校驗儀的軟件使用labview開發,界面簡潔易用,設計時盡量減少了用戶需要設置的環節。一般情況下用戶幾乎不用設置參數。這樣方便用戶在現場校驗時提高效率。 |
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電子式互感器模擬輸出校驗系統 校驗系統軟件滿足能夠實時顯示被校測的互感器的比差和角差,以及電網系統的系統常規電氣參數、標準互感器與被校測的互感器輸出的實時數據及波形,并具有全自動測量、記錄和自動存儲功能,波形及數據的存儲格式是可以依據自己的工作習慣和喜好選擇多種方式進行保存的。 |
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該校驗系統既可以完成電子式電流互感器的校驗也可以完成電子式電壓互感器的校驗。模擬電子式互感器校驗系統組成框圖如圖2所示,該系統分為電流標準通道,電壓標準通道,電流被測通道,電壓被測通道,校驗儀數據處理平臺。電流標準通道由升流器、標準電流互感器、標準轉換器組成。電流被測通道由升流器、被;ジ衅鹘M成。校驗儀通過采集器獲取標準電流傳感器和被校電流傳感器的電參量,并將這些電參量以標準格式上傳給計算機,計算機數據處理平臺將同一時刻的兩個信號進行比對處理,計算出被校電流傳感器的誤差情況,顯示并記錄測量結果。電壓標準通道由升壓器、標準電壓互感器、標準轉換器組成。電壓被測通道由升壓器、被;ジ衅鹘M成。工作原理與電流校驗系統相同。 |
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基于虛擬儀器,可實現電子式互感器模擬和數字量輸出的比差、相差的測量,記錄,及電子式互感器的在線測量比對。為廣大電力試驗、計量、施工單位提供一種可移動的電子式互感器校驗裝置。 |
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●配置靈活,可根據不同的需要配置/電子式電流互感器校驗/電子式電壓互感器校驗;
●計算被;ジ衅髋c標準互感器電流/電壓有效值的比差、相差;
●顯示當前一次導線的電流、電壓、頻率等相關信息,便于綜合評估被校參數;
●顯示被;ジ衅鬏敵龅膶崟r波形,以及相關設置,并自動保存校驗數據,生成報表;
●靈活配置試驗參數,測試范圍,測試次數,采樣點數等相關信息。
●準確度高、可靠性強。準確度等級達到0.05級,可用于對0.2S級電子式電流互感器和0.2級電子式電壓互感器進行比對和校驗。
●采用高精度插值法進行同步,保證被;ジ衅骱蜆藴驶ジ衅鞑杉臄祿試栏竦臅r序同步,可靠性、實用性大為提高。 |
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質量要求(供方對質量負責的條件和期限):
質保期24個月,期內質量“三包”,終身維護。對客戶所購產品的使用情況進行全程跟蹤服務,并提供二十四小時服務和響應。以上儀器設備無需安裝調試,依照使用說明書可直接就地使用。含國內交貨到指定港口運費。 |
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HENZ3-HR
Electronic Transformer Calibrator
Automatic intelligent Calibration System
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About
this Device: |
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Digital
(photovoltaic, electronic) transformer as an analog to the
bridge of the world to the digital world, occupies a pivotal
position in the digital substation, digital (photovoltaic,
electronic) transformer that is the cornerstone of the digital
substation, all digital are derived from it. Therefore,
accurate precision and performance of digital (photovoltaic,
electronic) transformer is very important. Our metering
law all the measuring instruments must be the amount of
the pass, which means that all measuring instruments must
be able to realize the magnitude of antedating. Therefore,
the practical application of digital (optoelectronic, electronic)
transformer amount biography installation at the scene also
need regular check, to verify the measurement accuracy and
stability, as well as the standard protocol IEC61850 International
Electrotechnical supported and the Statute of correctness. |
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HENZ3-HR
electronic transformer calibrator kernel, has Dual CPU architecture,
24Bit AD chip and 512 times over-sampling techniques greatly
expand the bandwidth, to improve the measurement accuracy.
At the same time, the use of multi-gear automatic switching
and FIR filter to improve the dynamic range and signal-to-noise
ratio. Use the Labview development of management software,
beautiful interface, easy to use. Power and sample input
to take a large number of electromagnetic compatibility
measures, to be able to adapt to the complex field test
environment. With portable design, convenient laboratory
and field testing. |
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The
calibrator HENZ3-HR electronic transformer tester, is Researched
and Developed in our R & D Center, produced by our company.
This is a new electronic transformer calibrator calibrator
using the data acquisition card + IPC structure. Using high-precision
data acquisition card, data acquisition card with the new
virtual instrument interface design software NI LabView,
based on the WINDOWS operating system, the software interface
is friendly, powerful. Apply to check and debug electronic
transformer analog output and digital output can be used
for electronic transformer basic accuracy of the test and
the composite error test is a comprehensive function calibrator.
This device has a powerful software analysis capabilities,
intuitive display waveform and valid data, and data storage,
offline analysis. |
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HENZ3-HR
type electronic transformer digital output calibration system
consists of: 1) a standard transformer 2) standard signal
conversion apparatus, 3) standard A / D converter, 4) synchronizing
signal generating means, 5) error calculating unit composition.
HENZ3-HR-type electronic transformer calibrator instrument
itself has 2) to 5) function, it also has analog output
calibration function is a test electronic transformer digital
output and analog output error Integrated Tester. Automatic
intelligent tests or calibration equipment(Automatic intelligent
electronic transformer test calibration system the industrial
computer monitoring and control error management software
and host the calibration test hardware configuration)。 |
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Device
reference implementation of the standards and specifications:
JJG313-94 "Measuring the current transformer rule".
JJG314-94 "Measuring the voltage transformer rule".
JJG169-93 "transformer calibrator rule.
GB / T 20840-7 "transformers - Part 7: Electronic Voltage
Transformer.
GB / T 20840-8 "Transformers Part 8: Electronic current
transformer.
IEC61850 "substation communication networks and systems."
DL/T668-1999 "measuring transformer testing device. |
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Apparatus
uses the operation environmental conditions:
This system unit to meet and dedicated to the voltage level
of the digital (optoelectronic, electronic) transformer
voltage (current) test detection and test verification tasks.
1. Altitude not exceed 1500m.
2. Ambient temperature: -15 ~ +55 ℃.
3. Air relative humidity: ≤ 90%.
4. Use Location: indoor / field use, removable.
5. Must have a reliable ground point grounding resistance
<1Ω.
6. Working power: AC 220V ± 10%, about 800VA, as the actual
sine wave supply
voltage waveform.
7. Power frequency: 50/60 Hz.
8. No conductive dust, no fire and explosion hazard exists
does not corrode metal and
insulation-containing gas. |
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Main
Usage:
Meet IEC61850 the (-9-1 -9-2-9-2LE have been added) standard
electronic transformers verify; electronic check electronic
transformer polarity and delay; small signal output transformer
check; parity of the merger of the small-signal input unit;
0.05 0 ~ 7V output two precision voltage signal, without
l large voltage and high current can be; merger of small
signal input unit school experience (extended precision
standard source module); able to output a digital signal
source (FT3 format), do not need to verify liter large voltage
and high current can support the FT3 input merged unit.
(Extended digital signal source module); electronic transformer
output FT3 check (Extended FT3 conversion module); to traditional
transformer parity (the extended analog signal conversion
module). |
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Main
features:
HENZ3-HR electronic transformer calibrator for electronic
transformer to meet IEC61850 (-9-1, -9-2,-9-2LE) standard
output checksum. Check project include: the ratio difference,
phase difference, delay, polarity. At the same time small
signal input terminals, electronic transformer small signal
output part as well as the merger of the small-signal input
unit check. |
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Main
functions:
1. Using the traditional transformer calibrating device
(BHE type) and Agilent 3458A Digital Multimeter value transfer.
2. Use the built-in GPS or high stability the crystal output
pulse synchronization signal.
3. IEC61850 (-9-1, -9-2,-9-2LE) protocol packets full frame
resolution automatic analysis ASDU data,Sampling points,
all channel waveform diagram, no need to get caught you
can visually view all channel data.
4. ST / SC dual fiber Ethernet interfaces and dual RJ45
Ethernet interface, improve reliability, and convenient
access interface electronic transformer.
5. order quasi-synchronization algorithm makes non-synchronous
sampling algorithm error is
approaching zero.
6. 24Bit AD chip and 512 times oversampling technique, greatly
expand the bandwidth to improve the accuracy.
7 multi-gear automatic switching and FIR filter to improve
the dynamic range and reduce the signal-to-noise ratio.
8. Real-time display of the waveform, frequency, amplitude,
phase, and other data to facilitate
comprehensive analysis of transformer performance.
9. with IPC, 800 * 600 touch screen. More convenient operation.
10. with a powerful, easy operating software can be run
on industrial computer or laptop
11. Statistical ratio difference and phase difference between
the mean, worse, extrema, multiple error data, a comprehensive
test of the stability and linearity of the electronic transformer.
12. Multiple harmonics analysis and electronic transformer
harmonic accuracy check.
13. throughout the testing process. Recording and playback.
14. drop-frame test, real-time statistics of dropped frames. |
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The
main technical indicators:
1. Accuracy grade: 0.05 (worse than the error: ≤ 0.02%,
a difference of error: ≤ 0.02 °
(ie: angle difference <2 ')).
Built-in standards conversion devices: the accurate precision
level of 0.05% level, 0.02% level, the 0.01% level.
Precision level in accordance with the standard transformer
transformers and school may be chosen to match the corresponding
adjustment conversion device to test parity.
Parity level: 5,3,1,0.5,0.2,0.1,0.5 S, 0.2S;
2. Communicate protocols and Statute: IEC61850-9-1/IEC61850-9-2/IEC61850-9-2LE
have been add.
3. The input range of the standard signal input range:
1) Rated voltage: 100V and 100 / √ 3V, 100/3V.
2) Rated current input range: 1A, 5A.
3) small signal input range 150mV, 200mV, 225mV, 4V, 1.625V
, 1V, 2V, 3.25V, 4V, 6.5V.
4) Analog Input: the signal types 100V and 1A/5A.
The digital Input: ST type fiber optic connectors, 62.5/125
multimode fiber interface.
4. Accuracy measurement range:
Voltage (V): 5% -120% Un (rms 0.05% RD Un = 100 / √ 3V
or 100V)
Current (A): 1% -120% In (RMS 0.05% RD In = 1A and 5A)
Signal input: 1V above range: 1% -120% Un 0.05S level (for
check metering transformer)
Range 1V following: 100% to 2000% Un 0.05% level (for inspection
protection transformer )
5. The harmonic test accuracy: worse than 0.1% Uh, or 0.1%
Ih angle difference: 10 points
6. AD sampling precision: better than 0.01% measure uncertainty
in the magnitude of rated range.
7. Small signal output (optional, additional charge function)
Output voltage: 0 ~ 7V
Output harmonic: 2 to 40 times
The output accuracy: 0.05 to 5V 0.05%
RD harmonic accuracy: 0.05%.
8. Input circuit power consumption
Input voltage circuit power consumption <0.2VA (100V,
57.7V)
Input current loop power consumption <1VA (5A)
Input current loop power consumption <0.2VA (1A)
9. Ethernet interface
SC fiber interface: 1 (multitude mode fiber wavelength 820nm
to 860nm)
ST fiber interface: 1 (multitude mode fiber wavelength 820nm
to 860nm)
RJ45 interface 2
The optical signal has a wavelength of 820nm ~ 860nm, the
optical fiber with 62.5/125 multimode glass fiber interface.
10. Synchronous
Light B code synchronization input (second pulse and B code
can be configured) one
Light the code synchronization output B (second pulse and
B code can configure) one
A synchronization input electric, electric synchronous output
one
11. Human Interface
Display: TFT LCD Resolution 800 * 600
Operation: touch-screen operation, IPC USB port, you can
connect a USB mouse and keyboard.
12. Whole weight ≤ 12.8kg.
13. Power supply voltage 220V ± 10%, 50/60Hz.
14. Outside air temperature (-15 ℃ ~ 55 ℃).
15. Maximum relative humidity: <90%.
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Device
functions and software features:
The schematic diagram of the the electronic transformer
digital output check system block diagram shown in Figure
1 digital output checksum as follow:
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The
schematic diagram of the the electronic transformer analog
output check test block diagram in Figure 2 is analog output
checksum. |
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The
electronic transformer digital output calibration system
software development interface is shown in Figure 3, its
software features and operating instructions are described
as below: |
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.jpg) |
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The
electronic transformer analog output calibration system
software development interface is shown in Figure 4, the
software features and instructions with digital output calibration
system similar set is relatively simple. Test, the analog
signal is inserted through the panel on three core flight
UxA connected to the transformer was measured by the school. |
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.jpg) |
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The
Electronic transformer analog output calibration system
calibration system software is divided into three functional
interface, error test parameter settings, communication
settings. The electronic transformer calibrator software
using labview development, the interface is simple and easy
to use, designed to minimize the user needs to set the link.
Almost no general set of parameters. This user-friendly
to improve efficiency in field calibration.
The electronic transformer analog output calibration system
calibration system software to meet the real-time display
conventional electrical parameters of the school measured
the ratio of the transformer differential and angle, as
well as the grid system, standard transformer and measured
by school transformer output real-time data and waveforms,
and has a fully automated measurement, recording and automatic
storage function, waveform and data storage format can be
selected in accordance with their own work habits and preferences
of a variety of ways to be saved.
The calibration system either completed the calibration
of electronic current transformers can also complete electronic
voltage transformer checksum. Analog electronic transformer
calibration system block diagram shown in Figure 2, the
system is divided into the current standard channel, voltage
standard channel, the measured current channel, voltage
measured channel calibrator data processing platform. The
current standard channels by the up-flow, standard current
transformer, standard converter. Current measured channels
by the up-flow, composed of school transformer. Calibrator
through the collector obtain the standards current sensor
and the current sensor to be calibrated electrical parameters
and electrical parameters in a standard format to upload
to the computer, computer data processing platform than
dealing with the same time the two signals, calculated the
school current sensor error, display and record the measurement
results. Voltage standard channel booster, standard voltage
transformers, converter standard. The voltage measured channel
booster, composed of school transformer. The working principle
is the same as the current calibration system.
Based virtual instruments, electronic transformer analog
and digital output than the poor, the online measurement
of the difference between the measurement, recording, and
electronic transformers. For the majority of power test,
measurement, construction units to provide a mobile electronic
transformer calibrating device.
● flexible configuration and can be configured depending
on the needs / electronic current transformer calibrator
/ electronic voltage transformer check;
● calculate school transformers with standard transformer
current / voltage rms than the difference, a difference;
● display the current conductor of current, voltage, frequency
and other relevant information to facilitate a comprehensive
assessment of school parameters;
● display the a school transformer output real-time waveform,
and related settings, and automatically save the calibration
data, generate reports;
● flexibility to configure the test parameters, test range,
the number of tests, the number of samples, and other related
information.
● high accuracy and reliability. The accuracy level of
0.05, can be used to compare and check the 0.2S level electronic
current transformers and 0.2 electronic voltage transformer.
● synchronized, ensure that the data collected by the school
transformer and standard transformer stringent timing synchronization,
reliability, practicality greatly improved using high-precision
interpolation. |
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Quality requirements: (supply-side responsible for the quality
and duration):
warranty period is 24 months, during this period the quality
of "three guarantees", and all life-long maintenance.
Tracking service the customer purchased the product's use,
and provide 24-hour service and response. Without installation
and commissioning of the above equipment, in accordance
with users' instruction books, can use it directly. The
fees including domestic delivery to the designated port
freight. |
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