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style="font-size:18px"><strong>T24指針式交直流壓表技術(shù)參數(shù)</strong></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">T24型毫安表、安培表、伏特表為交直流電磁系儀表，用</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">于直流電路及頻率標(biāo)準(zhǔn)范圍從45~65H</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">z</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">的交流電路的標(biāo)準(zhǔn)表。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">儀表*符合國(guó)家標(biāo)準(zhǔn)GB/T7676.2-2006的要求，適用于</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">環(huán)境溫度23±10℃、相對(duì)濕度25%~80%且空氣中不含有能引</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">儀表腐蝕的環(huán)境中。如用戶(hù)需要本廠可提供特殊規(guī)范儀表。</span></span></p><p><img alt="" src="http://img58.chem17.com/9/20171122/636469338459696335751.png" style="height:389px; width:600px" /></p><table style="border-collapse:collapse; margin-left:-4.0500pt; width:409px"><tbody><tr><td colspan="2" style="vertical-align:center; width:110px"><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">儀表</span></span></p></td><td rowspan="2" style="vertical-align:center; width:101px"><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">量限</span></span></p></td><td rowspan="2" style="vertical-align:center; width:76px"><p><span style="font-size:9.0000pt"><span style="font-family:宋體">全偏轉(zhuǎn)電流(</span></span><span style="font-size:9.0000pt"><span style="font-family:times new roman">mA)</span></span></p></td><td rowspan="2" style="vertical-align:center; width:66px"><p><span style="font-size:9.0000pt"><span style="font-family:宋體">zui大消耗功率(W)</span></span></p></td><td rowspan="2" style="vertical-align:center; width:57px"><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">標(biāo)準(zhǔn)頻</span></span></p><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">率范圍</span></span></p></td></tr><tr><td style="vertical-align:center; width:69px"><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">型號(hào)</span></span></p></td><td style="vertical-align:center; width:41px"><p style="text-align:center"><span style="font-size:9.0000pt"><span style="font-family:宋體">名稱(chēng)</span></span></p></td></tr><tr><td rowspan="3" style="vertical-align:top; width:69px"><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">T24-</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">mA</span></span></p><p> </p></td><td rowspan="3" style="vertical-align:top; width:41px"><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 毫</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 安</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 表</span></span></p></td><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">10-20-40</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman"> mA</span></span></p></td><td rowspan="8" style="vertical-align:top; width:76px"><p> </p></td><td rowspan="8" style="vertical-align:top; width:66px"><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p><span style="font-size:9.0000pt"><span style="font-family:宋體">0.2</span></span></p></td><td rowspan="8" style="vertical-align:top; width:57px"><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p> </p><p><span style="font-size:9.0000pt"><span style="font-family:宋體">45-65</span></span></p><p><span style="font-size:9.0000pt"><span style="font-family:宋體">Hz </span></span></p><p> </p></td></tr><tr><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">50-100-200</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">mA</span></span></p></td></tr><tr><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">250-500</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">-1000</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">mA</span></span></p></td></tr><tr><td rowspan="5" style="vertical-align:top; width:69px"><p> </p><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">T24- A</span></span></p><p> </p><p> </p><p> </p></td><td rowspan="5" style="vertical-align:top; width:41px"><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 安</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 培</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 表</span></span></p></td><td style="vertical-align:top; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">0.5-1A</span></span></p></td></tr><tr><td style="vertical-align:top; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">1-2A</span></span></p></td></tr><tr><td style="vertical-align:top; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">2.5-</span></span></p></td></tr><tr><td style="vertical-align:top; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">5-10A</span></span></p></td></tr><tr><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">0.75-1.5-3-7.5-15-30-60A</span></span></p><p style="text-align:center"><strong><span style="font-size:10.5pt"><span style="font-family:黑體">( 交流型 )</span></span></strong></p></td></tr><tr><td rowspan="3" style="vertical-align:bottom; width:69px"><p style="text-align:center"> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">T24-</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">V</span></span></p><p style="text-align:center"> </p><p style="text-align:center"> </p><p> </p></td><td rowspan="3" style="vertical-align:top; width:41px"><p> </p><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 伏</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 特</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 表</span></span></p></td><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">15-30-45-60V</span></span></p></td><td style="vertical-align:top; width:76px"><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">300</span></span></p><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">300</span></span></p><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">300</span></span></p></td><td style="vertical-align:top; width:66px"><p> </p><p><span style="font-size:9.0000pt"><span style="font-family:宋體">2.2</span></span></p></td><td rowspan="3" style="vertical-align:top; width:57px"><p> </p></td></tr><tr><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">75-150-300V</span></span></p></td><td style="vertical-align:top; width:76px"><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">120</span></span></p><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">120</span></span></p><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">120</span></span></p></td><td style="vertical-align:top; width:66px"><p> </p><p><span style="font-size:9.0000pt"><span style="font-family:宋體"> 2.4</span></span></p></td></tr><tr><td style="vertical-align:center; width:101px"><p><span style="font-size:10.5000pt"><span style="font-family:宋體">75-150-300-</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">600V</span></span></p></td><td style="vertical-align:center; width:76px"><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">24-24</span></span></p><p style="text-align:center"><span style="font-size:10.5000pt"><span style="font-family:宋體">-8-8</span></span></p></td><td style="vertical-align:top; width:66px"><p> </p><p><span style="font-size:9.0000pt"><span style="font-family:宋體">4.8</span></span></p></td></tr></tbody></table><p><span style="font-size:10.5000pt"><span style="font-family:宋體">二主要技術(shù)特性</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 1 儀表量限及主要電氣參數(shù)見(jiàn)上表。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 2 準(zhǔn)確度等級(jí)：0.2級(jí)</span></span></p><p style="margin-left:21.0000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體"> -1-</span></span></p><p style="margin-left:21.0000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">當(dāng)使用條件符合下列情況時(shí),儀表標(biāo)度尺工作部份的基本誤</span></span></p><p style="margin-left:9.4500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">不超過(guò)上量限的±</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">0.</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">25</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">%</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><ul style="list-style-type:square"><li><span style="font-size:10.5000pt"><span style="font-family:宋體">環(huán)境溫度為：23±2℃。</span></span></li><li><span style="font-size:10.5000pt"><span style="font-family:宋體">除地磁外,周?chē)鷽](méi)有其它鐵磁物質(zhì)和外磁場(chǎng)。</span></span></li><li><span style="font-size:10.5000pt"><span style="font-family:宋體">被測(cè)量為直流或45~65 Hz的正弦交流(波形畸變系數(shù)小</span></span></li></ul><p style="margin-left:41.8500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">于5%)。</span></span></p><ul style="list-style-type:square"><li><span style="font-size:10.5000pt"><span style="font-family:宋體">儀表處于水平工作位置(允許偏差±1°</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">)</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></li><li><span style="font-size:10.5000pt"><span style="font-family:宋體">測(cè)量前用調(diào)節(jié)器調(diào)好機(jī)械零位。</span></span></li></ul><p style="margin-left:23.8500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">安培表應(yīng)用在擴(kuò)大頻率范圍內(nèi)的交流電路的基本誤差超</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">過(guò)上量限的±1%。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 3 標(biāo)度尺全長(zhǎng)約150</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">mm</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">，工作部份為標(biāo)度尺全長(zhǎng)的20~100%。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 4 阻尼響應(yīng)時(shí)間：不超過(guò)4秒鐘。</span></span></p><p style="margin-left:36.7500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體"> 5 位置影響：儀表自水平位置向任一方向偏離5°時(shí),其指示值的改變不超過(guò)上量限的±</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">0.</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">2</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">5%</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 6 溫度影響：當(dāng)環(huán)境氣溫自23±2℃改變±10℃時(shí)，改變量</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> ≤</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">0.</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">25</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">%</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:times new roman"> 7 </span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">外磁場(chǎng)影響,通過(guò)與被試表同種類(lèi)的電流所形成的強(qiáng)度為</span></span></p><p style="margin-left:37.5000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">0.4KA/</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">m</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">的均勻磁場(chǎng),且在zui不利方向和相位的情況下,由此引起儀表指示值的改變量不超過(guò)上量限的±</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">0.</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">7</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">5%</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">8 絕緣電阻：儀表加約500V直流電壓</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">1min,</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體"> 絕緣電阻≥</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:times new roman"> 5M</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">Ω。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">9 絕緣強(qiáng)度：外殼對(duì)電路能耐受45~65 Hz的正弦電壓2KV</span></span></p><p> <span style="font-size:10.5000pt"><span style="font-family:times new roman">1min</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">10 外形尺寸：275×200×120</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">mm</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">11 重量：不超過(guò)2K</span></span><span style="font-size:10.5000pt"><span style="font-family:times new roman">g</span></span><span style="font-size:10.5000pt"><span style="font-family:宋體">。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">三結(jié)構(gòu)概述</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">本儀表是吸引型扁形勵(lì)磁線圈,帶磁屏蔽的電磁系儀表,其測(cè)</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">量機(jī)構(gòu)的動(dòng)鐵芯和屏蔽采用了高導(dǎo)磁的坡莫合金。儀表可動(dòng)部份</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">用張絲支承。為防止儀表受沖擊使張絲拉斷,采用了套筒式限制</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">器。儀表采用磁感應(yīng)阻尼和具有減少視差的反射鏡子和指針讀數(shù)</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">裝置。量限的改變用轉(zhuǎn)換開(kāi)關(guān)來(lái)實(shí)現(xiàn)。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">儀表的外殼是密封的,采用酚醛塑料壓制。表蓋上有玻璃窗口</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">及調(diào)零器。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">四使用規(guī)則</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> -2-</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">1 儀表應(yīng)水平放置，關(guān)盡可能遠(yuǎn)離大電流及強(qiáng)磁性物質(zhì)。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">2 測(cè)量前利用表蓋上的調(diào)零器將儀表的指針準(zhǔn)確地調(diào)好零位，并</span></span></p><p style="margin-left:5.2500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">將轉(zhuǎn)換開(kāi)關(guān)轉(zhuǎn)到相應(yīng)被測(cè)量值的量限上，盡可能先用較大的量限。以免使儀表過(guò)載損壞。測(cè)量時(shí)當(dāng)指針偏轉(zhuǎn)少于上量限的50%時(shí)可將轉(zhuǎn)換開(kāi)關(guān)轉(zhuǎn)到較小的量限上。</span></span></p><p style="margin-left:5.2500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">3 測(cè)量直流時(shí)，應(yīng)使電源正極與帶“*”的接線柱相接，為使測(cè)量準(zhǔn)確，取電流電壓平緩上升下降時(shí)讀數(shù)的平均值。</span></span></p><p style="margin-left:15.7500pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">4 當(dāng)須擴(kuò)大交流電流量*，可配用HL55型電流互感器。此時(shí)被測(cè)量的數(shù)值按下式計(jì)算：</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> X=KC(α+△α)</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 式中：K-電流互感器的變比。不用互感器K=1</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> C-儀表常數(shù),C = 滿偏轉(zhuǎn)值 </span></span><strong><span style="font-size:14pt"><span style="font-family:宋體">/ </span></span></strong><span style="font-size:10.5000pt"><span style="font-family:宋體">儀表標(biāo)度尺的格數(shù)</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> α-儀表讀數(shù)(格數(shù))</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> △α-相應(yīng)讀數(shù)分度線上的校正值(格數(shù))</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">五供應(yīng)的成套性</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> 隨同每臺(tái)儀表一起供應(yīng)的有：</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">1 使用說(shuō)明書(shū)一份；</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">2 合格證一份；</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">六運(yùn)輸、保管及保證期限</span></span></p><p style="margin-left:10.5000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">1 運(yùn)輸儀表時(shí)必須按出廠的包裝情況包裝好，避免使儀表受到強(qiáng)烈振動(dòng)。</span></span></p><p style="margin-left:10.5000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">保存儀表的地方不應(yīng)有灰塵，其環(huán)境溫度為0~+40℃、相對(duì)濕度不超過(guò)85%,且在空氣中不應(yīng)含有足以引起腐蝕的有害物質(zhì)。</span></span></p><p style="margin-left:10.5000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">2 儀表的保證期限自制造廠發(fā)貨日起20個(gè)月,在此期限用戶(hù)在*遵守本使用說(shuō)明書(shū)規(guī)定的運(yùn)輸、保管、使用規(guī)則，有封印仍完整的條件下，發(fā)現(xiàn)儀表不符合要求時(shí)本廠免費(fèi)給予更換或修理。</span></span></p><p><span style="font-size:10.5000pt"><span style="font-family:宋體">不超過(guò)85%,且在空氣中不應(yīng)含有足以引起腐蝕的有害物質(zhì)。</span></span></p><p style="margin-left:10.5000pt"><span style="font-size:10.5000pt"><span style="font-family:宋體">3 儀表的保證期限自制造廠發(fā)貨日起20個(gè)月,在此期限內(nèi)用戶(hù)在*遵守本使用說(shuō)明書(shū)規(guī)定的運(yùn)輸、保管、使用規(guī)則，有封印仍完整的條件下，發(fā)現(xiàn)儀表不符合要求時(shí)本廠免費(fèi)給予更換或修理。</span></span></p><p> </p><p> </p><p> </p><p> </p><p> </p><p><span style="font-size:10.5000pt"><span style="font-family:宋體"> -3-</span></span></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-1404881.html">T19交直流毫安表技術(shù)特性結(jié)構(gòu)概述</a></p> <p>下一篇：<a href="/Article-1404876.html">軟銅接地線的結(jié)構(gòu)特點(diǎn)</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div id="iqaqewgi6e" class="c-right"> <div id="iqaqewgi6e" class="c-1 r-pro"> <div id="iqaqewgi6e" class="c-left"> <div id="iqaqewgi6e" class="h-2"><a href="/products.html">產(chǎn)品分類(lèi)</a></div> <ul> <li><a href="/ParentList-1388067.html" onmouseover="showsubmenu('大電流發(fā)生器')" class="yj">大電流發(fā)生器</a> 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