產(chǎn)品簡(jiǎn)介?

NADWG-5A大型地網(wǎng)接地電阻測(cè)試儀，可測(cè)變電站地網(wǎng)（4Ω）、水火電廠、微波站（10Ω）、避雷針（10Ω）多用機(jī)型，采用了新型變頻交流電源，并采用了微機(jī)處理控制和信號(hào)處理等措施，很好的解決了測(cè)試過(guò)程中的抗干擾問(wèn)題，簡(jiǎn)化了試驗(yàn)操作過(guò)程，提高了測(cè)試結(jié)果的精度和準(zhǔn)確性，大大降低了試驗(yàn)人員的勞動(dòng)強(qiáng)度和試驗(yàn)成本。

NADWG-5A大型地網(wǎng)接地電阻測(cè)試儀適用于測(cè)試各類接地裝置的工頻接地阻抗、接觸電壓、跨步電壓、等工頻特性參數(shù)以及土壤電阻率。本儀器采用異頻抗干擾技術(shù)，能在強(qiáng)干擾環(huán)境下準(zhǔn)確測(cè)得工頻50Hz下的數(shù)據(jù)。測(cè)試電流**5A，不會(huì)引起測(cè)試時(shí)接地裝置的電位過(guò)高，同時(shí)它還具有極強(qiáng)的抗干擾能力，故可以在不停電的情況下進(jìn)行測(cè)量。

產(chǎn)品別名

地網(wǎng)接地電阻測(cè)試儀、大地網(wǎng)接地電阻測(cè)試儀、大型地網(wǎng)接地電阻測(cè)試儀

產(chǎn)品特性

1、測(cè)量的工頻等效性好。測(cè)試電流波形為正弦波，頻率僅與工頻相差為5Hz，使用45Hz和55Hz兩種頻率進(jìn)行測(cè)量。

2、抗干擾能力強(qiáng)。本儀器采用異頻法測(cè)量，配合現(xiàn)代軟硬件濾波技術(shù)，使得儀器具有很高的抗干擾性能，測(cè)試數(shù)據(jù)穩(wěn)定可靠。

3、精度高。基本誤差僅0.005Ω，可用來(lái)測(cè)量接地阻抗很小的大型地網(wǎng)。

4、功能強(qiáng)大?？蓽y(cè)量電流樁，電壓樁的接地電阻，地網(wǎng)的接地電阻，導(dǎo)通電阻,土壤電阻率。

5、操作簡(jiǎn)單。中英文菜單式操作，直接顯示出測(cè)量結(jié)果。

6、布線勞動(dòng)量小，無(wú)需大電流線。

產(chǎn)品參數(shù)

1、阻抗測(cè)量范圍：0～150Ω

2、分辨率：0.001Ω

3、測(cè)量誤差：±（讀數(shù)×2％+0.005Ω）

4、抗工頻50Hz電壓干擾能力：10V

5、測(cè)試電流波形：正弦波

6、測(cè)試電流頻率：45Hz、55Hz雙頻

7、**輸出電流：5A

8、**輸出電壓：420V

9、測(cè)量線要求： 電流線銅芯截面積≥1.5mm2

電壓線銅芯截面積≥1.0mm2

10、供電電源：AC220V±10％，50Hz

11、外形尺寸：440mm×350mm×210mm

12、儀器重量：18kg

Product introduction

NADWG Series Substation ground resistance tester can test grounding impedance, the contact voltage, step voltage, thedivertingpotential of all kindsgrounding device, and the potential gradient field of surface parameters such as frequency and soil resistivity. NADWG Series Substation ground resistance tester usesdifferentfrequency interferencetechnology, strong interference environment can be measured accurately the data frequency 50Hz. Test current is (0 ~ 3.0A), does not improve potential of groundingdevice, butit also has stronganti-interference ability, it can measurement without the power cut.

Also called?name

Ground network earth resistance tester, Ground Resistance Tester, Earth Ground Resistance Tester, Grounding Resistance Tester

The Characteristics of the products?

1、Good measurement of power frequency equivalence. Test current waveform is a sine and two frequencies usedinmeasurement.

2、Anti-interference ability ground voltage. The instrument uses different frequency measurement, withmodernhardware and software filteringtechnology, making the instrument has a very high anti-jamming performance, stable and reliable test data. 15V power frequency (50Hz) interference voltage errorcausedonly 0.001Ω.

3、High precision. Used to measure ground impedance small large ground network.

4、And powerful. Measurable standards prescribed all the features of the grounding device parameters. Notonlymeasure ground impedance, also measurethe resistance component and the reactance component.

5、With the break alarm function, to avoid erroneous measurements.

6、Simple operation. Full English?menu operation, directly showing the measurement results, andcomeswith mini printer can print on-sitemeasurements.

7、The wiring labor is small, no large current line.

8、Small size, light weight, easy to carry.

The parameters of the products