分析了VGA有源矩阵液晶显示器的缺陷分类、产生原因。研制出了有源矩阵液晶显示器的断路测试板、短路测试板以及全板显示测试板。
The defect classification and the reason forming defect of VGA thin film transistor active matrix liquid crystal displays are analysed. Open tester, short tester and display tester are developed.
作者结合工作心得,对非固有耐短路、无危害式安全变压器的短路和过载保护测试方法进行了总结和归纳。
With working experience, the author has summarized the test methods of short circuit and overload protection of non-inherently short-circuit proof transformer and fail-safe transformer.
变压器在运行中可能发生绕组变形,测试绕组变形的方法主要有频响法和短路阻抗法。
Winding distortion may happen during transformer operation. Frequency response and short impedance are the main methods to test winding distortion.
因此,变压器出口短路后的检测试验一项必要的关系到运行安全的重要工作。
Therefore, Electrical test of transformer in outlet short circuit is a necessary work which relate to the safe operation.
本文将简要介绍如何变压器的阻抗降低至3%,以保证短路测试脉冲电流的要求。
This paper will give a brief introduction of how to reduce transformer impedance to 3%, in order to ensure short-circuit test pulse current requirements.
利用上述的这套短路试验系统,对380V/25A高温超导限流器成功地进行了短路试验,实验结果表明:这套短路试验系统能够很好地满足测试高温超导限流器限流能力的要求。
With the short-circuit test system above, the 380V/25A HTSFCL was successfully tested. The results show that the short-circuit test system can satisfy all the requirements to test HTSFCL.
文中分析了国家标准中规定的配电变压器短路阻抗的要求,提出了利用变压器短路阻抗来测试变压器实际容量的方法,并研制了相关测试装置。
The requirements of distribution transformer short impedance in national specifications were analyzed and transformer short-circuit impedance was used to test the capacity of transformer.
精密线绕电位器的线性精度、函数符合度、匝间短路等项技术指标的优劣,直接影响到它在自控系统和仪器仪表中的应用,需要在生产过程中进行精确的参数测试。
The performances of linearity, function conformance, and short circuit between turns have the direct effect on the applications of the potentiometer in automatic control and instrument systems.
精密线绕电位器的线性精度、函数符合度、匝间短路等项技术指标的优劣,直接影响到它在自控系统和仪器仪表中的应用,需要在生产过程中进行精确的参数测试。
The performances of linearity, function conformance, and short circuit between turns have the direct effect on the applications of the potentiometer in automatic control and instrument systems.
应用推荐