Results 1 to 10 of about 2,247 (127)
水电水利, 2020 在机组运行时,更换发电机出口电压互感器一次熔断器,总结经验,确保在机组运行中处理电压互感器异常时人身、设备安全,避免机组停运,带来经济损失,同时分析解决了电压互感器一次熔断器多次熔断。
中元 代
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电力工程技术创新, 2020 电压互感器是电力设备的主要设施之一，决定着变电站的安全平稳供电。因此，就要对其常见的故障展开分析，提出有效的解决措施，并且做好日常巡检工作，来保障变电站的供电质量，为电力企业带来更多的经济效益与社会效益。
孟春 李
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Summary of Grounding Fault Finding Strategies in Substation DC System [PDF]
, 2023 [Introduction] With the rapid development of power electronic equipment and artificial intelligence and other high-tech, DC (Direct Current) system has been popularized and applied in substations.
Jiantao ZHANG +4 more
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Research on the Design of Operating Condition of Multi-Resistance Superconducting DC Current Limiter [PDF]
, 2023 [Introduction] The working principle of the resistive superconducting current limiter is based on the zero resistance effect of the superconductor, which is connected in series in the line and basically has no resistance during normal operation. When the
Jinchuan GUO, Qin YIN
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水电科技, 2022 针对10kV配电线路断路器保护、测量装置需要一般都在电源侧或负荷侧同时接入组合式（电压、电流）互感器。分析了《电业安全工作规程》中规定“带电断接空载线路时，必须确认线路的终端开关［断路器(开关)或隔离开关(刀闸)］确已断开，接入线路侧的变压器、电压互感器确已退出运行后，方可进行。”但是为保证互感器取电正常一般直接接入线路电源侧，而且没有设置控制开关，故无法退出运行。致使无法直接带电断、接带互感器断路器引流线。根据以上问题，本篇文章旨通过对新的作业方法、流程进行研究，在保证不停电情况下退出电压互感器 ...
豪 李 +4 more
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Study on Identification of Lexical Meaning in E-C Translation of English for Electric Power [PDF]
, 2019 As one of the branch of English for Science and Technology, English for Electric Power bears the characteristic of professionalism in meaning and flexible in lexis.
Jiang, Xue
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, 2019 实现直流转交流的电压变换装置称为逆变器。传统的逆变器由单片机输出SPWM控制,程序设计与电路设计复杂。本文拟采用属于DSP的tms320f28027作为控制系统。利用其强大的浮点计算能力及功能齐全,高精度的外设模块在极大地简化电路与程序设计的情况下可方便地对逆变器进行精准控制。包括全桥逆变电路,LC滤波电路的主电路在DSP接收反馈并进行PI计算后输出相应的SPWM的情况下可输出正弦波交流电压。依据设计方案制作了样机,实验结果证明样机能输出纯净的正弦波电压 ...
程星, 艾皓, 谢作生, 黄要然
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Application of MSP430-based on Three-phase Electric Power Monitor System [PDF]
, 2007 介绍了以MSP430F149单片机为核心,一种实现电力参数交流采样技术的基本算法,并对其硬件和软件的结构进行了详细地阐述。该监测设备结构简单、误差小、测量精确、价格低,可以作为测试仪器使用,也可以作为监控装置。A basic calculating method used in AC sampling for electric parameters with MSP430F149 single chip microcomputer are introduced in the paper,and ...
彭侠夫, 曾兴赠, 罗松涛
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