南澳電氣生產(chǎn)NAZT全自動變壓器直流電阻快速測試儀

NAZT Transformer DC Resistance Tester     NAZT全自動變壓器直流電阻快速測試儀

產(chǎn)品簡介

全自動變壓器繞組的直流電阻是變壓器在交接、大修和改變分接開關(guān)后必不可少的試驗項目，也是故障后的重要檢測項目； 變壓器直流電阻測試儀是變壓器、互感器、發(fā)電機、電動機和線路等直流電阻的快速測試設(shè)備。

全自動變壓器直流電阻測試儀是南澳電氣在保持原有變壓器直流電阻測試儀優(yōu)點的基礎(chǔ)上，將高精度電源與直流電阻測試集成為一體的新型儀器，極大縮小了儀器的體積與重量，擴大了測量范圍。該儀器采用高性能單片機控制，操作簡單，攜帶方便，測試速度快，精度高，復測性好，抗干擾能力強，自動完成穩(wěn)流判斷、數(shù)據(jù)采集處理和阻值顯示，能夠快速準確完成變壓器直流電阻的測量，是發(fā)供電單位、變壓器制造行業(yè)及大中型用電企業(yè)的理想測試產(chǎn)品。

南澳電氣武漢有限公司開發(fā)的NAZT系列變壓器直流電阻測試儀分為NAZT-3A、NAZT-5A、NAZT-10A、NAZT-20A、NAZT-40A、NAZT-50A、NAZT-100A等幾種規(guī)格型號。

產(chǎn)品別名

直流電阻速測儀，變壓器直流電阻測試儀，變壓器繞組直流電阻測試儀，變壓器直阻速測儀，變壓器直阻快速測試儀，感性負載直流電阻速測儀，感性負載直流電阻快速測試儀，感性負載直流電阻測試儀

產(chǎn)品特性

輸出電流大、測量范圍寬、體積小、重量輕，操作簡單；

■測試速度快、測量精度高、復測性好、抗干擾能力強;

■具有完善的保護電路和放電報警功能，減少誤操作，可靠性強；

■采用高速微控制器，自動完成穩(wěn)流判斷、數(shù)據(jù)采集和阻值顯示；

■采用192*64大屏幕液晶顯示，室外顯示清晰可見；

■內(nèi)置大容量非易失性存儲器，可存儲500組測量數(shù)據(jù)；

■內(nèi)置高精度實時時鐘功能：可進行日期及時間校準。

■自帶高速微型熱敏打印機：可打印測量及歷史數(shù)據(jù)。

注意事項

為了您和設(shè)備的安全，請操作人員仔細閱讀以下內(nèi)容:

① 在測量完感性負載時不能直接拆掉測試線，以免由于電感放電危及測試人員和設(shè)備的安全。本變壓器直流電阻快速測試儀的輸出端設(shè)有放電電路。關(guān)閉輸出時，電感會通過儀器泄放能量。一定要在放電指示完畢后才能拆掉測試線。

② 對于無載調(diào)壓變壓器，不允許測量過程中切換分接開關(guān)。

③ 測量過程中如果電源突然斷電，本變壓器直流電阻快速測試儀會自動開始放電，請不要立刻拆卸接線，至少等待30秒鐘后才可拆卸接線。

④ 測量時，其他未測試的繞組請勿短路接地，否則會導致變壓器充磁過程變慢，數(shù)據(jù)穩(wěn)定時間延長。

⑤ 開機前請檢查電源電壓:交流220V±10% 50Hz。

⑥ 試驗時請確認被測設(shè)備已斷電，并與其它帶電設(shè)備斷開。

⑦ 試驗時機殼必須可靠接地。

⑧ 試驗時不允許不相干的物品堆放在設(shè)備面板上和周圍。

⑨ 更換保險管和配件時，請使用與本儀器相同的型號。

⑩ 本變壓器直流電阻快速測試儀注意防潮、防油污。

Product introduction

Transformer DC Resistance Tester also named Low Resistance Ohmmeter, It is a necessary testing project for transformer transition, overhauling and changing tap switch, it is also an important detecting project after fault. Transformer DC Resistance Tester is a quick test equipment for testing transformers, generators, motors, lines and other DC resistance.

Transformer DC Resistance Tester is integrated high-precision power supply and DC resistance test in a whole as a new instrument, which not only maintain the original advantage but also greatly reduces the size and weight of the instrument and expands the measurement range. The instrument adopts the high-performance single-chip microcomputer control, simple operation, easy to carry, fast testing speed, high precision, good retest, strong anti-interference capability, automatically complete the judgment of steady flow, data acquisition and processing and display resistance, can accurately complete the measurement of transformer dc resistance, This instrument is the best testing equipment for power plant, power supply enterprises, medium and large-sized power transformer manufacturing industries and enterprises.

According to different level of current, Nanao Electric Wuhan Co., LTD has developed six types of Transformer DC Resistance Tester, they are NAZT-5A, NAZT-10A, NAZT-20A, NAZT-40A, NAZT-50A, NAZT -100A, etc.

Also called name

DC Resistance Rapid Tester, Transformer DC Resistance Tester, Transformer DC Resistance Rapid Tester, Transformer Winding DC Resistance Tester, Inductive Load DC Resistance Rapid Tester, Inductive Load DC Resistance Tester, Sensual loaded DC resistance tester.

The Characteristics of the products

1. Large output current, wide measuring range, small size, light weight, simple operation;

2. Fast test speed, high measurement accuracy, good retest capacity, strong anti-interference capability;

3. With perfect function of protection circuit and discharge alarm, reduce the wrong operation, good reliability;

4. Adopting high speed micro-controller to automatically complete the judgment of steady flow, data acquisition and processing and display resistance;

5. Using 192 * 64 large-screen LCD display, outdoor display is clearly visible;

6. Built-in high-capacity a non-volatile memory, can store 500 sets of measurement data;

7. Built-in high-precision real-time clock function, date and time can be calibrated.

8. With high speed micro thermal printer: can print measurement and historical data.

Attention should take for your safety, please read the following:

① After measured the inductive loaded, the testing line can not be removed directly, avoid the inductor discharge that may endanger the testers and equipment safety. The output of DC resistance quick tester set a discharge circuit. once turn off the output, the inductor will discharge energy through the instrument. Be sure to remove the testing line after the discharge instructions is finished.

② For no-load tap changer, is not allowed to switch the tap during the measuring process.

③If power is off suddenly during the measuring process., the DC resistance quick tester will automatically start to discharge, do not remove wiring immediately, need to wait for least 30 seconds ,

④ In the process of measuring, other untested windings should not grounded short circuit, otherwise it will cause the transformer magnetizing process slowed down, the data stabilized longer.

⑤ Please checking the power supply voltage before starting: AC 220V ± 10% 50Hz.

⑥ Make sure the device is power off before testing, and disconnected with other energized equipment.

⑦ The casing must be grounded firmly.

⑧ Not allow irrelevant items stacked on and around the device panel.

⑨ When replace the fuse and accessories, please use this instrument with the same model.

⑩ The DC resistance tester quick test pay attention to the moisture and grease.

NAZT-S Three-channel Transformer DC Resistance Tester    NAZT-S三通道變壓器直流電阻測試儀

產(chǎn)品簡介

NAZT-S三通道變壓器直流電阻測試儀（以下簡稱直阻儀）是變壓器直流電阻測量的最新一代產(chǎn)品，是為測量大容量變壓器三相繞組直流電阻而優(yōu)化設(shè)計的。可對變壓器的三相繞組直流電阻進行同時測試。對有載調(diào)壓變壓器可以不需要放電，直接調(diào)節(jié)分接開關(guān)，測量時間是傳統(tǒng)單相測量的三分之一，可大大縮短工作時間和勞動強度。直阻儀采用大屏幕液晶顯示器，中英文圖形界面，清晰直觀，操作非常簡單。并配備面板式打印機和大容量非易失性存儲器，可以方便的存儲和打印測量結(jié)果。測試數(shù)據(jù)穩(wěn)定，快速，重復性好，是現(xiàn)場測量變壓器直流電阻的最佳選擇。

產(chǎn)品別名

直流電阻速測儀、變壓器直流電阻測試儀、變壓器繞組直流電阻測試儀、變壓器直阻速測儀、變壓器直阻快速測試儀、感性負載直流電阻速測儀、感性負載直流電阻快速測試儀、感性負載直流電阻測試儀,三回路變壓器直流電阻測試儀、三回路變壓器測試儀

產(chǎn)品特性

1.對星型接法有中性點引出的繞組測試時，儀器可以采取三相同時測量的方式測試A0、B0、C0相的直流電阻，大大節(jié)省測試時間；

2.顯示、打印變壓器的高中低壓繞組的全部測試數(shù)據(jù)，并自動計算出三相不平衡率；

3.具有完善的反電勢保護功能；

4.具有自動放電和放電指示功能，減少誤操作，保證設(shè)備及人員安全；

5.儀器可以永久存儲測試數(shù)據(jù)500組，還可以使用優(yōu)盤存儲數(shù)據(jù)；

6.儀器采用5.7寸超大液晶顯示，可隨時打印測試結(jié)果；

7.儀器具有適用溫度寬，精度高，防震，抗干擾，攜帶方便等特點。

主要參數(shù)

輸出電流  三相測試：2*10A、2*5A、2*2A

單相測試：20A、10A、2A

測試范圍   2*10A：500μΩ～500mΩ

           2*5A： 1mΩ～1Ω

           2*2A： 2.5mΩ～2.5Ω

           20A：  250μΩ～1Ω

           10A：  500μΩ～2Ω

           2A：   2.5mΩ～10Ω

分 辨 率:  0.1μΩ

測量精度: ±(0.2%讀數(shù)+2字)

外形尺寸: 420mm×250mm×340mm

儀器重量: 15kg

使用條件

環(huán)境溫度:  -10℃～50℃

環(huán)境濕度:  ≤85%RH

工作電源:  AC220V±10%

電源頻率:  50±1Hz

Product introduction

NAZT-S Three-channel Transformer DC resistance tester (hereinafter referred to as direct resistance meter) is the latest generation product of transformer DC resistance measurement, used for measuring large-capacity transformer three-phase winding DC resistance. Three-phase transformer winding DC resistance can be tested simultaneously . For loaded tap changer, it’s no need to discharge, just to regulate the tap directly. The measuring time is one-third of traditional single-phase measuring time, can reduce the working hours and labor intensity greatly Direct resistance tester using a large-screen LCD display, full English graphical interface, clear and intuitive, is very simple to operate. And equipped with a large-capacity printer panel and a nonvolatile memory, can storage and print easily. The testing data is stable, fast and reproducible, is the best choice for on-site transformer DC resistance measuring .

Also called name

DC resistance rapid tester, transformer DC resistance tester, transformer winding DC resistance tester, transformer direct resistance rapid tester, transformer direct resistance rapid tester, inductive loaded DC resistance tester, inductive loaded DC Resistance rapid tester, inductive loaded DC resistance tester, three circuit transformer DC resistance tester, three circuit transformer tester

The Characteristics of the products

1 On star connection with neutral point leads winding test, the instrument can simultaneously measure three-phase A0, B0, C0 phase DC resistance, saving test time ;

2 Display, print all the tested data of transformer high voltage winding, and automatical calculates the three-phase unbalanced ratio ;

3 With perfect counter emf protective function.

4 With automatic discharge and discharge indicator function, to reduce the misuse, ensure the equipment and personnel safety ;

5 The instrument can store 500 groups of tested data permanently, also can use USB flash drives to store data ;

6 The instrument uses 5.7 -inch large LCD, can print the test results at any time;

7 The instrument can suitable for wide range of temperature, with high precision, shock-proof and anti-jamming function, is portable and convenient .

The parameters of the products

Output Current  Three-phase Test : 2 × 10A, 2 × 5A, 2 × 2A

Single phase : 20A, 10A, 2A

Test range 2 × 10A: 500μΩ ~ 500mΩ

2 × 5A: 1mΩ ~ 1Ω

2 × 2A: 2.5mΩ ~ 2.5Ω

20A: 250μΩ ~ 1Ω

10A: 500μΩ ~ 2Ω

2A: 2.5mΩ ~ 10Ω

Resolution : 0.1μΩ

Accuracy : ± (0.2% reading +2 )

Dimensions : 420mm × 250mm × 340mm

Instrument Weight : 15kg

Conditions of Use Ambient temperature : -10 ℃ ~ 50 ℃

Humidity : ≤ 85% RH

Power supply : AC220V ± 10%

Power frequency : 50 ± 1Hz

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