產(chǎn)品簡(jiǎn)介:
變壓器繞組的直流電阻測(cè)試是變壓器在交接、大修和改變分接開關(guān)后,必不可少的試驗(yàn)項(xiàng)目。通過測(cè)量變壓器繞組的直流電阻,可以檢查出引線的焊接或連接質(zhì)量,繞組有無匝間短路或開路,以及分接開關(guān)的接觸是否良好等情況。在以前對(duì)直阻的測(cè)量均采用QJ44雙臂電橋來測(cè)量,而這類電橋的測(cè)量電流為毫安級(jí),測(cè)量起來時(shí)間需要很長,而且精度也較低。為了改變這種狀況,縮短測(cè)量時(shí)間以及減輕測(cè)試人員的工作負(fù)擔(dān),本公司開發(fā)了XGZR-2A直流電阻快速測(cè)試儀。
本產(chǎn)品是取代直流單、雙臂電橋的高精度換代產(chǎn)品。儀器采用了先進(jìn)的開關(guān)電源技術(shù),其測(cè)量速度比電橋快一百多倍,顯示部分由四位半LCD液晶顯示測(cè)量結(jié)果,三位半LCD液晶顯示環(huán)境溫度或測(cè)試電流值,克服了其它同類產(chǎn)品由LED顯示值在陽光下不便讀數(shù)的缺點(diǎn),同時(shí)具備了自動(dòng)消弧功能。本儀器具有測(cè)速快、精度高、顯示直觀、抗干擾能力強(qiáng)、體積小、耗電省、測(cè)試數(shù)據(jù)穩(wěn)定可靠、不受人為因素影響等優(yōu)點(diǎn)。儀器內(nèi)裝可充電電池組(12V),交直流兩用,便于現(xiàn)場(chǎng)及野外測(cè)試。
變壓器測(cè)試設(shè)備
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