datalist:8数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543datalist:2数据库“tempdb”的事务日志已满，原因为“ACTIVE_TRANSACTION”。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   在 System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
   在 System.Data.SqlClient.SqlDataReader.get_MetaData()
   在 System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString, Boolean isInternal, Boolean forDescribeParameterEncryption, Boolean shouldCacheForAlwaysEncrypted)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, Boolean inRetry, SqlDataReader ds, Boolean describeParameterEncryptionRequest)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)
   在 System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
   在 System.Data.SqlClient.SqlCommand.ExecuteReader()
   在 B2b.Shop.ShopBase.GetDataList(Int32 iValue, Int32 iSize, List`1& loValues) 位置 f:\mywork\b2b168\b2bweb\B2bBase\ShopBase.cs:行号 4543<!DOCTYPE html>
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<ul class="jieshao"><h1>横河YOKOGAWA功率分析仪 WT1800/E多通道WT1600</h1>
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<li class="two linex"><font>关键词：</font><span>WT1800,WT1600,功率分析仪</span></li>
<li class="two"><font>发布日期：</font><span>2024-06-22</span></li>
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<span class="ssx01">产品规格</span><span class="ssx02">220v</span><span class="ssx01">包装说明</span><span class="ssx02">纸箱+泡棉</span><span class="ssx01">产地</span><span class="ssx02">日本</span>
<span class="ssx01">功能</span><span class="ssx02">完好</span>
<span class="ssx01">是否进口</span><span class="ssx02">是</span>
<span class="ssx01">是否定制</span><span class="ssx02">否</span>
<span class="ssx01">成色</span><span class="ssx02">二手</span>
<span class="ssx01">产品</span><span class="ssx02">功率分析仪</span>
<span class="ssx01">分辨率</span><span class="ssx02">30A</span>
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<p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><strong style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">YOKOGAWA WT1800 功率分析仪</span></span></strong></p><p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><span style="box-sizing:border-box;vertical-align:inherit">横河WT1800功率分析仪是测试产品效率以及逆变器、电机驱动、照明系统、不间断电源、飞机电源系统、变压器测试和其他功率转换设备设计的理想测量解决方案。</span></p><p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><span style="box-sizing:border-box;vertical-align:inherit">横河WT1800功率分析仪的特性和规格包括：</span></p><p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">电压和电流频率带宽 5 MHz（典型值 -3 dB）</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">WT1800比之前型号横河WT1600宽5倍以上，提供快开关频率所需的宽范围和频率，并且能够正确地捕获快速开关信号。</span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">将低功率因数误差降低至视在功率的 0.1%</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">功率因数误差是即使在低功率因数下也能确保测量的重要因素之一。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800 的功率因数误差 (0.1%) 是之前型号 WT1600 的 2/3，此外还具有 ±0.1% 的高基本功率精度。</span></span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">宽电压和电流范围，允许直接输入</span></p><p style="box-sizing:border-box"><img src="//l.b2b168.com/2023/11/04/16/202311041644573150884.jpg" alt="WT1800"></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">直接输入测量信号可以测量电流传感器难以测量的小电流。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800提供1.5 V至1000 V（12个量程）的直接输入电压范围和10 mA至5 A（9个量程）或1 A至50 A（6个量程）的直接输入电流范围。</span></span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">0.1 Hz 低速信号功率测量和大值&nbsp;</span><span style="box-sizing:border-box;vertical-align:inherit">50毫秒高速数据采集</span></span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">频率下限由原来的0.5Hz降低到0.1Hz（比上一代WT1600低5倍），满足低速功率测量的要求。</span><span style="box-sizing:border-box;vertical-align:inherit">此外，还继承了数据新达50ms的高速数据采集能力。</span><span style="box-sizing:border-box;vertical-align:inherit">除正常测量数据外，还可同时测量和保存多500次谐波数据。</span><span style="box-sizing:border-box;vertical-align:inherit">数据新速率可以从 50 ms 到 20 s 的九个选项中选择。</span><span style="box-sizing:border-box;vertical-align:inherit">*可以以 50 ms 数据新率进行高达 100 次的谐波测量。</span></span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">可选择特定的电压和电流范围</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">宽电压和电流输入范围具有扩展测量应用范围的优点。</span><span style="box-sizing:border-box;vertical-align:inherit">然而，缺点是自动量程的响应时间往往会变慢。</span><span style="box-sizing:border-box;vertical-align:inherit">范围配置功能解决了这个问题。</span><span style="box-sizing:border-box;vertical-align:inherit">由于只能使用选定的量程（有效测量范围），因此可以快地向上或向下改量程。</span></span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">支持节能技术和可持续能源发展</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><em style="box-sizing:border-box">双谐波测量：</em><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">从有效利用能源的角度来看，对将 50Hz 或 60Hz 交流电转换为直流电的逆变器、控制因过剩电力而发生的反向潮流的并网控制器以及电池充电器/放电器的需求不断增加。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800能够同时测量这些设备的输入和输出电流的谐波失真。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800 挑战了“谐波测量于单线”的常识，能够同时执行两线谐波测量。</span><span style="box-sizing:border-box;vertical-align:inherit">即使在 400 Hz 频率等高基频下，WT1800 也能够测量高达 500 次的谐波。</span></span></p><p style="box-sizing:border-box"><em style="box-sizing:border-box">定制显示屏：从</em><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">有效利用能源的角度来看，对将 50Hz 或 60Hz 交流电转换为直流电的逆变器、控制因过剩电力而发生的反向潮流的并网控制器以及电池充电器/放电器的需求不断增加。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800能够同时测量这些设备的输入和输出电流的谐波失真。</span><span style="box-sizing:border-box;vertical-align:inherit">WT1800 挑战了“谐波测量于单线”的常识，能够同时执行两线谐波测量。</span><span style="box-sizing:border-box;vertical-align:inherit">即使在 400 Hz 频率等高基频下，WT1800 也能够测量高达 500 次的谐波。</span></span></p><p><br></p><p><br></p><p><br></p><p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><span style="box-sizing:border-box;vertical-align:inherit">横河WT1800功率分析仪的规格包括：</span></p><p style="box-sizing:border-box;color:#333333;font-family:&quot;font-size:16px;background-color:#ffffff"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">基本功率精度：±0.1%</span></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">直流电源精度：±0.05%</span></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">电压/电流带宽：5 MHz&nbsp;</span><span style="box-sizing:border-box;position:relative;font-size:12px;line-height:0;vertical-align:baseline;top:-0.5em"><span style="box-sizing:border-box;vertical-align:inherit"><span style="box-sizing:border-box;vertical-align:inherit">*1</span></span></span><span style="box-sizing:border-box;vertical-align:inherit">（-3dB 典型值）</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">*1: 不包括50A输入元件的直流输入</span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">采样率：2 MS/s（16 位）</span></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">输入元素：多 6 个&nbsp;</span></p><p style="box-sizing:border-box"><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">或50A元件</span></p><p><br></p><p><br></p><p style="box-sizing:border-box"><span style="box-sizing:border-box;vertical-align:inherit">电流测量：100 µA 至 5</span></p><p><br></p><br /><a href="http://tanyan89.cn.b2b168.com/">http://tanyan89.cn.b2b168.com</a>

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