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- changing voltage power 变电压供电
- Low voltage power line carrier automatic meter recording system. 低压电力线载波集抄系统。
- It is mainly applied in voltage power cables and control cables. 主要用于中低压电力电缆和控制电缆的绝缘。
- Direct current cannot use transformers to change voltage. 直流电就不能用变压器来改变电压。
- High voltage power cables have been officially linked to cancer for the first time. 科学家首次正式提出高压电缆与癌症有关。
- Commutating power wupply uses silicon conmutating strong/weak excitation mode to change voltage , featuring e asy installation on site and reliable working performance. 工作性能稳定可靠。
- The TH7195 is a microprocessor controled High Voltage Power Supply (HVPS),designed to drive 7",9" and 12" X-Ray Image Intensifiers(XRII). TH7195是一个设计用来驱动7",9"和12"X线影像增强器(XRII)的微处理器控制高压电源。
- Low voltage power distribution cabinet, power distribution chest and lighting chest. 低压配电柜,动力配电箱、照明箱。
- PLC control for high- voltage power distribution system in rolling mill of Laiwu Iron and Steel Co. 莱钢轧钢厂高压配电系统PLC控制。
- Technical school of Mechanical or Electrical. Experience of high voltage power supply system is preferred. 机械或电气背景,有高压供电系统管理经验尤佳。
- In the paper the structure of DNB was introduced, and the theory of negative high voltage power supply was stressed. 本文介绍了DNB系统的整体结构,重点介绍了负高压电源的理论。
- Being operated from low voltage power supply the tonometer is electrically safe. 低压电源操作，眼压仪电方面是安全的。
- The school checks instrument need not battery, is directly used exchanges electric voltage power supply by diagraph. 校验仪不用电池，直接由测量用交流电压供电。
- The existing problems of high voltage power network in DDZ are analyzed in detail. 介绍一种自行研制的高压电网功率因数自动补偿装置。
- A new inspection robot for ultra-high voltage power line is introduced, and a piecewise control strategy is described. 介绍了一种新型的超高压输电线路巡检机器人，阐述了分阶段的控制策略。
- Unit adjustment: compensation transformer is 3 phase dry transformer to change voltage . 统调：补偿变压器实际上是一台可改变电压的三相干式变压器。
- Guide on methods of measurement of short duration transients on low voltage power and signal lines. 低电压;电力传输线路;电气工程;电磁兼容性;测量;
- The circuit changes voltage trigonal into current trigonal wave, and the square-wave is formed by inductance, which is converted to the DC signal with the changing of medium by absolute circuit. 该电路把生成的电压三角波转换成电流三角波,由电感作用形成方波,经绝对值电路实现随材料介质变化的直流信号。
- We must analyze the distributing electric field of power line iron tower when ADSS cable spanning with the high voltage power line. 尤其是对于超高压输电线路，由于在电力铁塔上同塔悬挂全介质自承式光缆(ADSS)，因此分析工频电场对ADSS光缆特性的影响非常必要。
- Lightning current withstand capacity test of electronic equipment wires and fuse links in low voltage power systems is conducted in laboratory . 通过试验研究了弱电设备电气连线、制电路板及低压系统保险丝管等耐受雷电流的能力。
