產(chǎn)品簡介

NABX全自動(dòng)變壓器繞組變形測試儀（頻響法）用于測試6kV及以上電壓等級(jí)電力變壓器及其它特殊用途的變壓器，電力變壓器在運(yùn)行或者運(yùn)輸過程中不可避免地要遭受各種故障短路電流的沖擊或者物理撞擊，在短路電流產(chǎn)生的強(qiáng)大電動(dòng)力作用下，變壓器繞組可能失去穩(wěn)定性，導(dǎo)致局部扭曲、鼓包或移位等變形現(xiàn)象，這樣將嚴(yán)重影響變壓器的安全運(yùn)行。按電力行業(yè)標(biāo)準(zhǔn)DL/T911－2004采用頻率響應(yīng)分析法測量變壓器的繞組變形，是通過檢測變壓器各個(gè)繞組的幅頻響應(yīng)特性，并對(duì)檢測結(jié)果進(jìn)行縱向或橫向比較，根據(jù)幅頻響應(yīng)特性的變化程度，判斷變壓器繞組可能發(fā)生的變形情況。

NABX變壓器繞組變形測試儀（頻響法）由測量部分及分析軟件部分組成，測量部分是由信號(hào)生成及信號(hào)測量組成的黑匣子，分析部分由筆記本電腦完成，測量部分通過USB或網(wǎng)絡(luò)與筆記本電腦連接。

產(chǎn)品別名

電力變壓器繞組變形測試儀、變壓器繞組變形檢測儀、變壓器繞組變形測量儀、變壓器繞組變形分析儀

產(chǎn)品特性

1.不對(duì)變壓器進(jìn)行吊罩、拆裝的情況下就可以進(jìn)行測試。

2.使用目前流行的掃頻法進(jìn)行測量。

3.NABX變壓器繞組變形測試儀可以對(duì)6kV以上的變壓器進(jìn)行測量。

4.采用分體式結(jié)構(gòu)，測試主機(jī)與主控計(jì)算機(jī)之間采用USB或網(wǎng)絡(luò)連接，即插即用。

5.現(xiàn)場接線簡單、使用方便。

6.測量動(dòng)態(tài)范圍寬：－100dB～20dB。

7.分析軟件功能強(qiáng)大，軟件、硬件指標(biāo)滿足國標(biāo)DL/T911-2004。

8.采用windows平臺(tái)，兼容Window2000/Window XP/Windows7。

9.采用數(shù)據(jù)庫保存測試數(shù)據(jù)，對(duì)測試數(shù)據(jù)的管理簡潔方便。

10.可以同時(shí)加載6條曲線，各條曲線相關(guān)參數(shù)自動(dòng)計(jì)算，自動(dòng)診斷繞組的變形情況，給出診斷的參考結(jié)論。

11.軟件管理功能強(qiáng)大，充分考慮現(xiàn)場使用的需要，自動(dòng)保存環(huán)境條件參數(shù)，以便作變壓器繞組變形診斷時(shí)提供依據(jù)。測量數(shù)據(jù)自動(dòng)存盤、具有彩色打印功能，方便用戶出測試報(bào)告。

12.軟件人性化特點(diǎn)明顯，測量的各種條件多為選擇項(xiàng)，不用在現(xiàn)場作很多的輸入，使用人員更加的方便。

13.軟件智能化程度高，在輸入、輸出信號(hào)連接好之后，只需要按一個(gè)鍵就可以完成所有的測量工作。

14.軟件界面簡潔直觀。

產(chǎn)品參數(shù)

1.測試主機(jī)與PC接口：USB。

2.信號(hào)源：儀器自帶一個(gè)通道信號(hào)輸出作為掃頻的激勵(lì)信號(hào)；信號(hào)輸出為標(biāo)準(zhǔn)正弦波，信號(hào)輸出幅度可以軟件調(diào)節(jié)，幅度Vpp10V，信號(hào)輸出阻抗為50Ω。

3.兩個(gè)采集通道，一個(gè)采集激勵(lì)信號(hào)，一個(gè)采集響應(yīng)信號(hào)，用于計(jì)算傳遞函數(shù)。

4.采集通道量化精度：12位。

5.采集通道靜態(tài)誤差：0.5%。

6.每通道存儲(chǔ)容量：64K樣點(diǎn)。

7.采集通道輸入阻抗：1MΩ。

8.掃頻測量范圍：0.5kHz－2MHz。

9.掃描方式：采用線形分布或?qū)?shù)分布的掃頻測量方式。

10.掃描頻率精度：信號(hào)源輸出正弦信號(hào)的頻率精度不大于0.01%。

11.掃頻測量頻點(diǎn)：固定模式或用戶自定義。

12.符合電力行業(yè)標(biāo)準(zhǔn)：DL/T911-2004。

Product introduction

NABX transformer windingdeformation tester based on transformer internal windingcharacteristic parameters measurement, adopting the developedcountries internal fault frequency response analysis (FRA) method,able to make accurate judgments on the transformer internal fault.Once the transformer is manufactured, its coil and the internalstructure is stabilized, therefore to a multi- winding transformercoil, if the voltage level is same, with the same windling method,around the system in the same way , the corresponding parameter ofeach coil (Ci, Li) should is determined. Thus each coiluency domain response is determined , which corresponds touency spectrum between the three-phase coils having acomparable. Transformer turns occurs during the test , theinterphase short circuit or a collision during transport ,resulting in the relative displacement of the coil , and theshort-circuit during operation and the fault condition causing thecoil deformation due to the electromagnetic force , will make thedistribution parameters of the transformer windings change. Therebyaffecting and changing transformers original frequency domaincharacteristics, namely the frequency response and resonantamplitude variations occurring frequency offset and so on. Andaccording to the response analysis method developedNA201 transformer winding fre tester, is such a novel transformer internal faultnondestructive testing e It is suitable for 63kV ~ 500kVpower transformer internal structure fault detection. Transformerwinding deformation tester is inside the transformer windingparameters at different frequency domain response changes were after treatment , according to the magnitude of thechanges the size , frequency response magnitude of change ,regional and response trends to determine internal transformerwinding the degree of change , in turn, can according to themeasurement results to determine whether the transformer has beenseriously damaged , the need for a major overhaul .

Also called name

Power transformer winding deformationtester, transformer winding deformation tester, transformer windingdeformation meter, transformer winding deformationanalyzer

The Characteristics of theproducts

1, Collection control adopt high-speed ,highly integrated microprocessor.

2 , Notebook with USB interface forcommunication between the instrument

laptops and USB interface forcommunication between instruments .

3, there is communication wirelessblue-tooth interface between laptop computer and instruments.

4 , the hardware chipset adopt DDSdedicated digital high-speed sweeping technology ( USA ) , thoughthe testing, can accurately diagnosed the winding distorted, drumkits, shift, tilt, deformation of inter-turn short circuit andphase to phase short circuit fault.

5 ,high resolution dB value measurement,dual-channel 16-bit A / D ( on-site test change the tap , meansobvious output change ) .

6 , the signal output amplitude can beadjusted by software, the maximum amplitude peak ±10V.

7 , the computer generates an electronicdocument testing results (Word)

8, choose precision, high stabilitycomponents, to the same-phase repeated testing, the measurementrepetition rate to 99.5%.

9, the finished circuit board ,with aspecial process on the surface, with water-proof and anti-harmfulgas functions .

10 , the instrument has auency sweep measurements and segmented sweep measurement dualmeasurement system features twoues compatible with thecurrent domestic geNAe measurementmode

11 , the amplitude-fretics meet the national tester technical indicatorsstandard. Abscissa ( frequency ) with linear and logarithmicindexing, so the printed curve can be linear pitch curve points,also can be a logarithmic curve, the user can choose according toactual needs .

12, automatic detection of data analysissystem, horizontal comparison A, B, C three-phase windingssimilarity comparison, the results as follows:①perfectconsistency,②good consistency ,③ordinary  consistency,④ poor consistency. Vertical comparison, A-A,B-B, C-C obtain the original data and the current data phase tophase winding deformation comparison between, the results asfollows: ①normal windingdeformation, ②mild windingdeformation, ③moderate windingdeformation, ④severe deformationdeformation .

13 , automatically generated Wordelectronic documents, for saving and printing .

14 , the instrument fully meet theelectricity standard DL/T911-2004 " power transformer windingdeformation Frequency Response Analysis" technical conditions.

The parameters of theproducts

1, Scanning mode: (instrument withlinear sweep frequency measurement and segmented sweep fre dual measurement system)

(1) Distribution of linearsweep

Sweep frequency measurement range:(1kHz) - (2MHz), 2000 sweep frequency points, resolution is1kHz

(2) Segment sweep frequency measurementdistribution

Sweep frequency measurement range:(0.5kHz) - (1MHz), 2000 sweep points;

(0.5kHz) - (10kHz), resolution is0.02kHz

(10kHz) - (100kHz), resolution is0.2kHz

(100kHz) - (500kHz), resolution is1kHz

(500kHz) - (1000kHz), resolution is1kHz

2, Other technicalparameters:

(1) Amplitude Measurement Range:(-100dB) - (+20 dB)

(2) Amplitude Accuracy: 0.1dB

(3) Scanning Frequency accuracy: lessthan 0.01%

(4) Signal Input impedance:1MΩ

(5) Signal output impedance:50Ω

(6) Same phase repetitive rate:99.5%

(7) Measuring Instruments Dimensions(LWH) 345X250X120 (mm)

(8) Instrument aluminum box dimensions(LWH) 425X335X215 (mm)

(9) Instrument Accessories aluminum boxdimensions (LWH) 425X335X150 (mm)

(10) Total Weight: 10Kg