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WDZR-5A直流电阻快速测试仪

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WDZR-5A直流电阻快速测试仪

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一、WDZR-5A直流电阻快速测试仪产品介绍

 

       变压器绕组的直流电阻测试是变压器在交接、大修和改变分接开关后,必不可少的试验项目。在通常情况下,用传统的方法(电桥法和压降法)测量变压器绕组以及大功率电感设备的直流电阻是一项费时费工的工作。为了改变这种状况,缩短测量时间以及减轻测试人员的工作负担,本公司开发了直流电阻快速测试仪。它采用新电源技术,具有测量迅速、体积小巧、使用方便、测量精度高等特点。是测量变压器绕组以及大功率电感设备直流电阻的理想设备。

 

二、WDZR-5A直流电阻快速测试仪基本原理

 

       WDZR型直流电阻快速测试仪采用典型的四线制测量法。以期提高测量电阻(尤其是低阻)的准确度。程控恒流源、程控前置放大器、A/D转换器构成了测量电路的主体。中央控制单元通过控制恒流源给外部待测负载施加一个恒定、高精度的电流,然后,将所获得的数据(包括测试电压、当前的测试电流等)进行处理,得到实际电阻值。本仪器可存储255试验数据,并且可打印存储的所有试验数据。仪器复位、掉电时所存储的数据均不丢失。

 

三、WDZR-5A直流电阻快速测试仪技术参数

 

项目

技术指标及参数

备注

测试电流

1mA10mA1A5A

 

测量范围

1mA1μΩ~20kΩ

 

10mA1μΩ~2kΩ

 

1A1μΩ~20Ω

 

5A1μΩ~4Ω

 

测量准确度

±0.2%±2个字(满量程)

 

显示方式

128×64点阵显示

电阻显示为4 1/2

最大分辨率

1μΩ

 

电源

AC 220V±22V50Hz±2 Hz

保险管5A

最大功耗

120W

测试电流为5A

工作环境

环境温度:0°40°

 

相对湿度:≤80%

 

 

未找到相应参数组,请于后台属性模板中添加

WDZR-5A直流电阻快速测试仪特点

 

它采用新电源技术,具有测量迅速、体积小巧、使用方便、测量精度高等特点。是测量变压器绕组以及大功率电感设备直流电阻的理想设备。

WDZR-5A直流电阻快速测试仪技术参数

 

项目

技术指标及参数

备注

测试电流

1mA10mA1A5A

 

测量范围

1mA1μΩ~20kΩ

 

10mA1μΩ~2kΩ

 

1A1μΩ~20Ω

 

5A1μΩ~4Ω

 

测量准确度

±0.2%±2个字(满量程)

 

显示方式

128×64点阵显示

电阻显示为4 1/2

最大分辨率

1μΩ

 

电源

AC 220V±22V50Hz±2 Hz

保险管5A

最大功耗

120W

测试电流为5A

工作环境

环境温度:0°40°

 

相对湿度:≤80%

 

 

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资质证书

企业产品严格按照国际、国家标准及行业规程生产,通过国家、各省级、市级电力研究所、计量中心及电力权威部门的检测,全面通过ISO9001国际质量管理体系认证、中华人 民共和国制造计量器具许可证、GB/T19001-2008质量管理体系要求、GB/T24001-2004环境管理体系要求、GB/T28001-2011职业健康安全管理体系要求。

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478 ISO9001国际质量管理体系认证 1
479 变频互感器综合测试仪专利证书 2
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