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id="1571n5fppxr7" class="ej"><a href="/SonList-1800102.html" class="eja">繼電保護測試儀</a></li> </ul> </div> </li> </ul> </div> </div></div> <div id="1571n5fppxr7" class="inpage_right"> <div id="1571n5fppxr7" class="mbx2"><a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > SB2204/3型智能化介質(zhì)損耗測試儀概述</div> <div id="1571n5fppxr7" class="inpage_content"> <div id="1571n5fppxr7" class="nr_main_box"> <h1 class="inside_rnewtil">SB2204/3型智能化介質(zhì)損耗測試儀概述</h1> <div id="1571n5fppxr7" class="inside_rnewtime">點擊次數(shù)：361 更新時間：2023-11-08</div> <div id="1571n5fppxr7" class="inside_rnewcon"><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><strong style="font-size: 12px;padding: 0px"><span style="font-family: 黑體; padding: 0px;">一、<span style="font-family: 黑體; padding: 0px; font-size: 16px;">SB2204/3型智能化介質(zhì)損耗測試儀概述</span></span></strong></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="padding: 0px;">SB2204/3</span><span style="font-family: 宋體; padding: 0px;">型智能化介質(zhì)損耗測試儀是一種新穎的測量介質(zhì)損耗角正切</span><span style="padding: 0px;">(tgδ)</span><span style="font-family: 宋體; padding: 0px;">和電容值</span><span style="padding: 0px;">(Cx)</span><span style="font-family: 宋體; padding: 0px;">的自動化儀器?？梢栽诠ゎl高電壓下，現(xiàn)場測量各種絕緣材料、絕緣套管、電力電纜、電容器、互感器、變壓器等高壓設(shè)備的介質(zhì)損耗角正切</span><span style="padding: 0px;">(tgδ)</span><span style="font-family: 宋體; padding: 0px;">和電容值</span><span style="padding: 0px;">(Cx)</span><span style="font-family: 宋體; padding: 0px;">。與西林電容電橋相比，具有操作簡單、自動測量、讀數(shù)直觀、無需換算、精度高、抗干擾能力強等優(yōu)點。儀器內(nèi)附標準電容器和升電壓裝置，在</span><span style="padding: 0px;">“</span><span style="font-family: 宋體; padding: 0px;">內(nèi)接</span><span style="padding: 0px;">"</span><span style="font-family: 宋體; padding: 0px;">方式下使用，無需其它外接設(shè)備，便于攜帶。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">具有多種測量方式，可選擇正</span><span style="font-size: 12px; padding: 0px;">/</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">反接線、內(nèi)</span><span style="font-size: 12px; padding: 0px;">/</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">外標準電容器和內(nèi)</span><span style="font-size: 12px; padding: 0px;">/</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">外試驗電壓進行測量。正接線可測量高壓介損。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">內(nèi)附</span><span style="font-size: 12px; padding: 0px;">SF6</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">標準電容器，</span><span style="font-size: 12px; padding: 0px;">tgδ<0.005%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">，受空氣濕度影響小。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">矢量運算法結(jié)合移相、倒相法，抗干擾效果好；能有效地消除強烈的電場干擾對測量的影響，適用于</span><span style="font-size: 12px; padding: 0px;">500kV</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">極其以下電站的強干擾現(xiàn)場試驗。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">高壓短路和突然斷電時，儀器能迅速切斷高壓，并發(fā)出警告信息。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">測量重復(fù)性好，電壓線性好（測量準確度不受電壓影響）</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">一體化結(jié)構(gòu)，重量適中，便于攜帶。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">大屏幕帶背光中文液晶顯示器信息提示操作，使用方便。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">儀器自帶打印機，及時保存測試數(shù)據(jù)。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 60px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; padding: 0px;">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; font-size: 9px; line-height: normal; font-family: "Times New Roman"; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">高壓電纜連接至試品，保障**；儀器未接地報警，**措施完備</span></span></p><p><br/></p><p><br/></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><strong style="font-size: 12px;padding: 0px"><span style="font-family: 黑體; font-size: 12px; padding: 0px;">二、<strong style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; white-space: normal; padding: 0px;"><span style="font-size: 16px; font-family: 黑體; padding: 0px;">SB2204/3型智能化介質(zhì)損耗測試儀概述</span></strong>技術(shù)指標</span></strong></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;margin: 0 0 0 109px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><span style="font-family: 宋體; padding: 0px;">額定工作條件：溫度</span><span style="padding: 0px;">:0</span><span style="font-family: 宋體; padding: 0px;">～</span><span style="padding: 0px;">40℃<span style="padding: 0px;"> </span></span><span style="font-family: 宋體; padding: 0px;">相對濕度</span><span style="padding: 0px;">:30%</span><span style="font-family: 宋體; padding: 0px;">～</span><span style="padding: 0px;">85%<span style="padding: 0px;"> </span></span><span style="font-family: 宋體; padding: 0px;">供電電源</span><span style="padding: 0px;">:</span><span style="font-family: 宋體; padding: 0px;">電壓</span><span style="padding: 0px;">:220V±22V,</span><span style="font-family: 宋體; padding: 0px;">頻率</span><span style="padding: 0px;">: 50±1Hz</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-family: 宋體; padding: 0px;">外形尺寸：</span><span style="padding: 0px;">l×b×h,mm:440×330×400<span style="padding: 0px;"> </span></span><span style="font-family: 宋體; padding: 0px;">重量</span><span style="padding: 0px;">:</span><span style="font-family: 宋體; padding: 0px;">不大于</span><span style="padding: 0px;">23kg<span style="padding: 0px;"> </span></span><span style="font-family: 宋體; padding: 0px;">功耗</span><span style="padding: 0px;">:</span><span style="font-family: 宋體; padding: 0px;">不大于</span><span style="padding: 0px;">40VA</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">測量范圍</span><span style="font-size: 12px; padding: 0px;">:</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">：介質(zhì)損耗</span><span style="font-size: 12px; padding: 0px;">(tgδ):0</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">～</span><span style="font-size: 12px; padding: 0px;">1<span style="font-size: 12px; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">分辨率</span><span style="font-size: 12px; padding: 0px;">0.0001</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 105px"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">電容量</span><span style="font-size: 12px; padding: 0px;">(Cx):<span style="font-size: 12px; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">最小分辨率</span><span style="font-size: 12px; padding: 0px;">0.01pF</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 42px"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">內(nèi)接方式：試驗電壓</span><span style="font-size: 12px; padding: 0px;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">試品電容量</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px;"><span style="font-size: 12px; padding: 0px;"> </span>5kV 7.5kV 10kV<span style="font-size: 12px; padding: 0px;"> </span>3pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">～</span><span style="font-size: 12px; padding: 0px;">40000PF</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px;"><span style="font-size: 12px; padding: 0px;"> </span>1.5kV 2.25kV 3k<span style="font-size: 12px; padding: 0px;"> </span>10pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">～</span><span style="font-size: 12px; padding: 0px;">0.35μF</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px;"><span style="font-size: 12px; padding: 0px;"> </span>0.5kV 0.75kV 1kV<span style="font-size: 12px; padding: 0px;"> </span>30pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">～</span><span style="font-size: 12px; padding: 0px;">1.5μF</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 35px"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">外接方式：</span><span style="font-size: 12px; padding: 0px;"> “</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">外接升壓器</span><span style="font-size: 12px; padding: 0px;">"</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">方式最高試驗電壓</span><span style="font-size: 12px; padding: 0px;">10kV</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px;"><span style="font-size: 12px; padding: 0px;"> </span>“</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">外接</span><span style="font-size: 12px; padding: 0px;">Cn"</span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">方式（外接高壓、外接標準電容器）最高試驗電壓由標準電容器和被試品決定</span><span style="font-size: 12px; padding: 0px;">(Umax=Imax/ωC)</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">標準回路最大電流</span><span style="font-size: 12px; padding: 0px;">50mA(In=UωCn)<span style="font-size: 12px; padding: 0px;"> </span></span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">被試回路最大電流</span><span style="font-size: 12px; padding: 0px;">2A(Ix=UωCx)</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 35px"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">內(nèi)部升壓器輸出能力：</span><span style="font-size: 12px; padding: 0px;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">輸出電壓</span><span style="font-size: 12px; padding: 0px;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px;">額定輸出電流</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="padding: 0px; font-size: 16px;"><span style="font-size: 12px; padding: 0px;"> </span>5kV 7.5kV 10kV<span style="font-size: 12px; padding: 0px;"> </span>100mA</span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="padding: 0px; font-size: 16px;"><span style="font-size: 12px; padding: 0px;"> </span>1.5kV 2.25kV 3kV<span style="font-size: 12px; padding: 0px;"> </span>300mA</span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="padding: 0px; font-size: 16px;"><span style="font-size: 12px; padding: 0px;"> </span>0.5kV 0.75kV 1kV<span style="font-size: 12px; padding: 0px;"> </span>500mA</span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-family: 宋體; padding: 0px; font-size: 16px;">基本測量誤差：</span></p><div id="1571n5fppxr7" class="tabledivclass" style="width: 99%; float: left;"><table cellspacing="0" cellpadding="0" border="1" align="left" style="max-width: 748px;"><tbody style="font-size: 12px;padding: 0px"><tr style="font-size: 12px;padding: 0px;height: 9px" class="firstRow"><td width="59" style="font-size: 12px; padding: 0px; border-width: 1px; border-style: solid; border-color: black;" height="9"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">測量內(nèi)容</span></p></td><td width="69" style="font-size: 12px; padding: 0px; border-right: 1px solid black; border-top: 1px solid black; border-left: rgb(212, 208, 200); border-bottom: 1px solid black;" height="9"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">tgδ</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">范圍</span></span></p></td><td width="99" style="font-size: 12px; padding: 0px; border-right: 1px solid black; border-top: 1px solid black; border-left: rgb(212, 208, 200); border-bottom: 1px solid black;" height="9"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">電容量范圍</span><span style="font-size: 12px; padding: 0px; text-align: left;">(Cx)</span></span></p></td><td width="72" style="font-size: 12px; padding: 0px; border-right: 1px solid black; border-top: 1px solid black; border-left: rgb(212, 208, 200); border-bottom: 1px solid black;" height="9"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">試品類型</span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-right: 1px solid black; border-top: 1px solid black; border-left: rgb(212, 208, 200); border-bottom: 1px solid black;" height="9"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">基</span><span style="font-size: 12px; padding: 0px; text-align: left;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">本</span><span style="font-size: 12px; padding: 0px; text-align: left;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">誤</span><span style="font-size: 12px; padding: 0px; text-align: left;"> </span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">差</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 18px"><td width="59" rowspan="5" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext; border-top-style: initial; border-left-style: solid; border-bottom-style: solid;" height="18"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">介質(zhì)損耗</span></p><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">因數(shù)</span></p><p style="font-size: 12px;text-align: center"><span style="padding: 0px; text-align: left; font-size: 16px;">tgδ</span></p></td><td width="69" rowspan="7" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="18"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">0</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">～</span><span style="font-size: 12px; padding: 0px; text-align: left;">0.5</span></span></p></td><td width="99" rowspan="2" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="18"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">50pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">～</span><span style="font-size: 12px; padding: 0px; text-align: left;">60000pF</span></span></p></td><td width="72" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="18"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">非接地</span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="18"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(1%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+0.0005)</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 17px"><td width="72" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="17"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">接地</span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="17"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(1%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+0.0010)</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 15px"><td width="99" rowspan="2" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="15"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">10pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">～</span><span style="font-size: 12px; padding: 0px; text-align: left;">50pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">或</span></span></p><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">60000pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">以上</span></span></p></td><td width="72" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="15"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">非接地</span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="15"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(1%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+0.0010)</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 15px"><td width="72" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="15"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">接地</span></p></td><td width="157" rowspan="2" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="15"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(2%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+0.002)</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 25px"><td width="99" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="25"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">3pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">～</span><span style="font-size: 12px; padding: 0px; text-align: left;">10pF</span></span></p></td><td width="72" rowspan="3" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="25"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">非接地</span></p><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">與接地</span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 19px"><td width="59" rowspan="2" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black windowtext; border-top-style: initial; border-left-style: solid; border-bottom-style: solid;" height="19"><p style="font-size: 12px;text-align: center"><span style="font-family: 宋體; padding: 0px; text-align: left; font-size: 16px;">電容量</span></p></td><td width="99" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="19"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">50pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">以上</span></span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="19"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(1%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+1pF)</span></span></p></td></tr><tr style="font-size: 12px;padding: 0px;height: 17px"><td width="99" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="17"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">50pF</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">以下</span></span></p></td><td width="157" style="font-size: 12px; padding: 0px; border-width: 1px; border-right-style: solid; border-color: rgb(212, 208, 200) black black rgb(212, 208, 200); border-top-style: initial; border-left-style: initial; border-bottom-style: solid;" height="17"><p style="font-size: 12px;text-align: center"><span style="font-size: 16px;"><span style="font-size: 12px; padding: 0px; text-align: left;">±(1%</span><span style="font-family: 宋體; font-size: 12px; padding: 0px; text-align: left;">讀數(shù)</span><span style="font-size: 12px; padding: 0px; text-align: left;">+2pF)</span></span></p></td></tr></tbody></table></div><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal;text-indent: 32px"><span style="font-size: 16px;"><strong style="padding: 0px;"><span style="font-size: 16px; padding: 0px;"> </span></strong></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><strong style="font-size: 12px;padding: 0px"><span style="font-family: 宋體; font-size: 12px; padding: 0px;">三、<strong style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif; font-size: 12px; white-space: normal; padding: 0px;"><span style="font-size: 16px; font-family: 黑體; padding: 0px;">SB2204/3型智能化介質(zhì)損耗測試儀</span></strong></span></strong></span><strong style="font-size: 16px; text-indent: 32px; font-family: sans-serif;"><span style="font-family: 黑體;">內(nèi)部結(jié)構(gòu)和工作原理</span></strong></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">3.1 <span style="font-size: 16px; font-family: 宋體;">內(nèi)部結(jié)構(gòu)</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">儀器將升壓與測量裝置安裝在一個機箱里，儀器內(nèi)部具有最高輸出電壓達</span>10kV<span style="font-size: 16px; font-family: 宋體;">的升壓變壓器，還安裝有標準高壓電容器，在內(nèi)部高壓測量范圍內(nèi)使用時無需任何外部設(shè)備，便于攜帶到試驗現(xiàn)場使用；儀器方便用戶靈活地進行多種方式的測量。儀器結(jié)構(gòu)牢固，確保高、低壓電路電氣間隙和爬電距離符合</span>GB4793.1-1995<span style="font-size: 16px; font-family: 宋體;">《測量、控制和實驗室用電氣設(shè)備的安全要求》中的有關(guān)規(guī)定。圖</span>1<span style="font-size: 16px; font-family: 宋體;">、圖</span>2<span style="font-size: 16px; font-family: 宋體;">分別為儀器的前、后面板示意圖。圖中：</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">①打印機--測量結(jié)束，顯示測量結(jié)果時，按“打印"鍵，可以將測量結(jié)果打印出來。</span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">②顯示窗——以</span>LCD<span style="font-size: 16px; font-family: 宋體;">用中文顯示</span>tg<span style="font-size: 16px; font-family: 宋體;">δ和電容測量值。并顯示指導(dǎo)操作的提示信息。</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">③輸出電壓選擇鍵——當選擇“內(nèi)接"方式工作時，用以選擇試驗電壓（按升序或減序），內(nèi)部升壓器產(chǎn)生的試驗電壓共有九檔，分別為：</span>10kV<span style="font-size: 16px; font-family: 宋體;">、</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">7.5kV<span style="font-size: 16px; font-family: 宋體;">、</span>5kV<span style="font-size: 16px; font-family: 宋體;">、</span>3kV<span style="font-size: 16px; font-family: 宋體;">、</span>2.25Kv<span style="font-size: 16px; font-family: 宋體;">、</span>1.5kV<span style="font-size: 16px; font-family: 宋體;">、</span>1kV<span style="font-size: 16px; font-family: 宋體;">、</span>0.75kV<span style="font-size: 16px; font-family: 宋體;">、</span>0.5kV<span style="font-size: 16px; font-family: 宋體;">。</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">④電源輸入插座——接</span>220V<span style="font-size: 16px; font-family: 宋體;">市電。</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">⑤背光選擇鍵——在明亮的環(huán)境中選擇無背光；而在昏暗的環(huán)境中選擇帶背光。</span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⑥</span><span style="color: rgb(255, 0, 0); font-size: 16px; font-family: 宋體;">電源鍵</span><span style="font-size: 16px; font-family: 宋體;">——按下該鍵，儀器電源接通。</span></span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">⑦保險絲座</span></p><p style=";text-indent:32px;text-autospace:none"><span style="font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⑧</span><span style="color: rgb(128, 128, 0); font-size: 16px; font-family: 宋體;">內(nèi)部高壓允許鍵</span><span style="font-size: 16px; font-family: 宋體;">——為保障操作者安全而設(shè)；按下該鍵，接通高電壓輸入回路；松開該鍵，則不能發(fā)生高壓。</span></span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">⑨接地端子——為保障操作者的安全，為使儀器正常工作，使用前應(yīng)將該端子可靠接地。該端子既是安全接地，又是工作接地。</span></p><p style=";text-autospace:none"><span style="font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⑩</span><span style="font-family: 宋體; color: rgb(0, 128, 0); font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">啟動</span>/<span style="font-size: 16px; font-family: 宋體;">停止鍵</span></span><span style="font-size: 16px; font-family: 宋體;">——按下該鍵，儀器進入測量狀態(tài)；松開該鍵，儀器退出測量狀態(tài)。</span></span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">⑾打印鍵--測量結(jié)束，顯示測量結(jié)果時，按該鍵可以打印測量結(jié)果。</span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⑿正</span>/<span style="font-size: 16px; font-family: 宋體;">反接線鍵——用來選擇正接線或反接線方式。</span></span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⒀工作方式鍵——當選擇儀器內(nèi)部升壓器施加試驗電壓時，按該鍵選擇“內(nèi)接"方式；如現(xiàn)場干擾較大，按該鍵選擇“抗干擾內(nèi)接"方式；當外接升壓器施加試驗電壓時，按該鍵選擇“外接升壓器"方式；當外接升壓器和外接標準電容器測量時，按該鍵選擇“外接</span>Cn<span style="font-size: 16px; font-family: "Times New Roman";">"</span><span style="font-size: 16px; font-family: 宋體;">方式。</span></span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;"><span style="font-size: 16px; font-family: 宋體;">⒁標準電流輸入端</span>Cn<span style="font-size: 16px; font-family: "Times New Roman";">——“</span><span style="font-size: 16px; font-family: 宋體;">外接</span>Cn<span style="font-size: 16px; font-family: "Times New Roman";">"</span><span style="font-size: 16px; font-family: 宋體;">測量方式工作時，與外接標準電容器的測量端相連接。連接該端的電纜為黑色。</span></span></p><p style=";text-autospace:none"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 16px;">(15)<span style="font-size: 16px; font-family: 宋體;">被測電流輸入端</span>Cx<span style="font-size: 16px; font-family: "Times New Roman";">——</span><span style="font-size: 16px; font-family: 宋體;">使用時應(yīng)根據(jù)不同的試品類型與被試品的部位連接。詳見</span>4.3 <span style="font-size: 16px; font-family: 宋體;">條。連接該端的電纜為</span></span><span style="color: rgb(255, 0, 0); font-size: 16px; font-family: 宋體;">紅色</span><span style="font-size: 16px; font-family: 宋體;">。</span></span></p><p style=";text-autospace:none"><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 16px;">(16)<span style="font-size: 16px; font-family: 宋體;">電壓輸出端</span>HV<span style="font-size: 16px; font-family: "Times New Roman";">——</span><span style="font-size: 16px; font-family: 宋體;">當測量非接地試品（選擇正接線）時，該端為高電壓端，與該端相連的電纜內(nèi)層帶高壓；當測量接地試品（選擇反接線）時，該端在儀器內(nèi)部接地。連接該端的電纜為</span></span><span style="color: rgb(128, 128, 0); font-size: 16px; font-family: 宋體;">黃色</span><span style="font-size: 16px; font-family: 宋體;">。</span></span></p><p style=";text-autospace:none"><span style="font-family: 宋體; font-size: 16px;">(17)<span style="font-size: 16px; font-family: 宋體;">電纜外屏蔽專用接地端--電纜與儀器連接時，將電纜插頭端的引出線連至該端，從而將電纜的外層屏蔽接地。</span></span></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><strong style="font-size: 12px;padding: 0px"><span style="font-family: 宋體; font-size: 12px; padding: 0px;"></span></strong></span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img52.chem17.com/9/20231108/638350290544932302680.png" title="DR82D8([6K%_E3}$W}@Z(GN.png" alt="DR82D8([6K%_E3}$W}@Z(GN.png"/></p><p style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"><span style="font-size: 16px;"><strong style="font-size: 12px;padding: 0px"><span style="font-family: 宋體; font-size: 12px; padding: 0px;"></span></strong><br/></span></p><p><span style="font-size: 16px;"><span style="font-family: 宋體; font-size: 14px; padding: 0px;">儀器測量線路包括一路標準回路和一路被試回路，標準回路由內(nèi)置高穩(wěn)定度標準電容器與采樣電路組成</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">,</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">被試回路由被試品和采樣電路組成。由</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">8031</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">單片機運用計算機數(shù)字化實時采集方法</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">,</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">對數(shù)以萬計的采樣數(shù)據(jù)處理后進行矢量運算，分別測得標準回路電流與被試回路電流幅值及其相位關(guān)系</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">,</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">并由之算出試品的電容值</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">(Cx)</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">和介質(zhì)損耗角正切</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">(tgδ)</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">，測量結(jié)果可靠。現(xiàn)場有干擾時，先利用移相、倒相法減小干擾的影響，再將被試回路測得</span><br clear="all" style="font-family: Tahoma, Verdana, Geneva, Arial, Helvetica, sans-serif;font-size: 12px;padding: 0px;white-space: normal"/><span style="font-family: 宋體; font-size: 14px; padding: 0px;">的電流</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">Ix′</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">與單獨測得的干擾電流</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">Id</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">矢量相加，得到真正的測量電流</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">Ix</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">，進而得出正確的測量結(jié)果。由圖</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">3</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">可見，可根據(jù)不同的測量對象和測量需要，靈活地采用多種接線方式。如測量非接地試品（正接法）時，</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">“LV"</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">（</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">E</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">）點接地；而測量接地試品（反接法）時，則</span><span style="font-family: "Times New Roman"; font-size: 14px; padding: 0px;">“HV"</span><span style="font-family: 宋體; font-size: 14px; padding: 0px;">點接地。</span></span></p><p 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