电压等级（voltage class）电力系统及电力设备的额定电压级别系列。额定电压是电力系统及电力设备规定的正常电压，即与电力系统及电力设备某些运行特性有关的标称电压。电力系统各点的实际运行电压允许在一定程度上偏离其额定电压，在这一允许偏离范围内，各种电力设备及电力系统本身仍然能正常运行。
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...测仪 直流电机 电压等级 驱动控制电路[gap=1402]Key words: flowmeter; direct current motor driven circuit; voltage grade; driven control circuit...
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Such as the main streets of Wuhan overhead lines have been insteaded by the voltage level of 11OkV XLPE insulated power cables laid in the cable tunnle.
如武汉主要街道的架空线路已经转为敷设在电缆沟的110kV电压等级的XLPE交联聚乙烯绝缘电缆。
参考来源 - 基于光栅光纤传感的电力电缆在线监测系统研究The thesis discussed the fundamental which is voltage grade, reliability, connection mode, transformer load and power equipment.
论文阐述了城市电网规划中电压等级、供电可靠性、接线方式、变压器负荷率取值和供电设施的基本原则。
参考来源 - 城市电网改造及优化规划的研究With the quick development of modern industry, the increasing of power net capacity and the improvement of voltage class, environmental pollution is increasingly serious.
随着现代工业技术的飞速发展,电力网容量增大和电压等级的提高,环境污染问题日益恶化。
参考来源 - 基于SMS的低功耗高压绝缘子污秽检测装置的研究Considering the voltage degree, geograghical environment and weather condition, it analyzes the effects of on-site disturbances on on-line nimitoring system. Software and hardware are used meanwhile to reject disturbances, and this has showed good effect.
考虑到330kV变电站的电压等级、地理环境及气象条件等特点，认真分析了现场干扰对在线监测系统的影响，提出了系统采用软硬件结合的方法来提高抗干扰的能力，并在系统安装中采用，达到了良好的效果。
参考来源 - 嘉峪关330kV变电站油中气相色谱在线监测的应用研究The selection of voltage ranking in the high-voltage network of the electricity transmission and distribution is especially significant due to the foregoing demands.
要想达到上述要求，高压配电网的电压等级的选择尤为重要。
参考来源 - 绥化地区高压配电网电压等级方案的选择·2,447,543篇论文数据，部分数据来源于NoteExpress
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