英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
fagged查看　fagged　在百度字典中的解释百度英翻中〔查看〕
fagged查看　fagged　在Google字典中的解释Google英翻中〔查看〕
fagged查看　fagged　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Polarization Index Test or PI Test - Electrical Volt
    The advantage of the insulation resistance time ratio test is the cancellation of measurement errors caused by temperature Therefore, the PI test and DAR test are the most accurate The Polarization Index or PI test is conducted on high-voltage electrical equipment to ensure insulation quality
  • Polarization Index (PI) Test and DA Test - Inst Tools
    Advantage of PI and DA Test The insulation resistance decrease with increase in temperature Thus the measured insulation resistance value may be differ for different temperature However, PI and DAR is the IR ratio measurement, therefore the measurement is independent of temperature Author: Satyadeo Vyas
  • What are PI (polarization index) and DAR (dielectric absorption ratio . . .
    Used to diagnose the degree of progress of insulation deterioration, e g in cables and motors PI DAR is one of the criteria used to judge whether insulation is good (PASS) or bad (FAIL)
  • 2010 - Ed. 01 Insulation Resistance Testing Guide - Chauvin Arnoux Metrix
    Testing methods based on the influence of the test voltage application time (PI DAR) These methods involve measuring successive insulation resistance values at specified times They have the advantage of not being particularly influenced by temperature, so they can be applied, without
  • Polarization Index (PI): Importance, Calculation, and Testing Procedures
    Several factors can influence the results of a PI test: Temperature: Higher temperatures can lower the insulation resistance, leading to lower PI values Humidity: High humidity can introduce moisture into the insulation, lowering resistance and PI values
  • Polarization Index Test or PI Test - Electrical4U
    The Polarization Index Test (PI Value Test) and Insulation Resistance Test (IR Value Test) are performed on high-voltage electrical machines to check the insulation’s condition The PI test specifically evaluates the dryness and cleanliness of the insulation
  • Preventive Maintenance Test with Insulation Resistance Test . . .
    The temperature influence on this test is negligible as long as there is no significant temperature change in the device under test This test is suitable for the predictive and preventive maintenance of rotating machines The polarization index (PI) and dielectric absorption ratio (DAR) are commonly used to quantify the time-resistance test
  • Dielectric Absorption Test - IDC-Online
    Polarisation Index (PI) In this test, the testing device is applied and IR measurements are taken at 1 minute and 10 minutes The polarisation index (PI) is calculated as:
  • A review of polarization index and IEEE standard 43-2000 - Thomasnet
    There are additional concerns with PI testing outlined within IEEE Std 43-2000, including temperature limitations, dew-point limitations, trending tests, surface conditions, types of windings to be tested, and more
  • Insulation Resistance, DAR PI Measurement - MULTI DAYA MITRA
    IR is temperature sensitive When the temperature goes up, IR goes down, and vice versa Therefore, to compare new readings with previous readings, you need to correct the readings to some base temperature





中文字典-英文字典  2005-2009