查询词典 high voltage

High voltage power transmission faces the problem of high altitude in China. In this paper, a mobile corona test cage is firstly applied to measure the AC corona audible noises of three types of transmission bundle lines in four areas with different altitudes. The effect on audible noise from altitudes was analyzed in details.

我国高压输电线路面临着高海拔特殊问题，利用可移动式电晕笼系统在4个不同海拔对3种导线进行了交流电晕可听噪声试验研究，得出了可听噪声海拔修正的初步结果。

ABSTRACT With the development of the ultra-high-voltage power systems and the power supply cables in cities, the charging imaginary power of the high-tension bus bar has become the key problem of the power systems.

随着超高压电网的发展和城市市区供电电缆的增加，高压线路上的充电无功功率已成为电网运行的主要问题之一。

In order to resolve such question,an optic-fiber current measurement system with simple structure and suitable for high voltage frequency converter was developed based on Faraday effect and principle of optic -fiber current sensors,where a high circular bi-refractive optic-fiber coil was used as a current s...

鉴于光纤传感可以解决上述问题，基于偏振态调制的光纤电流传感器原理，研究一种适用于高压变频器的小巧的，基于法拉第磁光效应的高圆双折射光纤电流检测系统，用Jones矩阵对光纤系统进行分析。

The high-voltage high-power multilevel converter and AC motors drive techniques are summarized compendiously for domestic and overseas studies in the prolegomenon of this dissertation. The evolution and research status of multilevel converter topologies are analyzed, the development of AC variable speed techniques and the characteristic of DTC are discussed, also, the aim and significance for the research are demonstrated. In this dissertation, SVPWM pattern and implement method have been addressed comprehensively for three-level NPC inverter.

本文绪论部分针对国内外高压大容量多电平变换技术和交流传动控制技术作了简要综述，着重分析了多电平拓扑结构的发展和研究现状，讨论了交流调速的发展和直接转矩控制技术的特点，指出本文选题的目的和意义。

The BEST CORONA is based on the principle of high-voltage discharge in the high-frequency area.

该BEST CORONA 的原则基础上的高电压放电中的高频率地区。

SF〓 is widely used in high voltage equipment because of its high dielectric strength.

SF〓气体以它的高耐电强度性质已被广泛应用在高压电力设备中。

ABSTRACT SF〓 is widely used in high voltage equipment because of its high dielectric strength.

SF〓气体因它的高耐电强度性质而被广泛应用在电力设备中。

A high performance and high voltage half-bridge novel IGBT driver circuit is described in this paper.

介绍了一种高性能、高压集成新型半桥IGBT驱动电路。

Nowadays, the high voltage output frequency of PDP driver ICs is improved year by year, as for the increase of the panel size and the requirement of high definition image. Because the power consumption is in direct ratio to the output frequency, the significance of low power consumption design is more and more obvious

特别是随着显示图像质量的提高，以及平板显示器尺寸的增大，使得驱动芯片的工作频率不断提高，功耗也就随之增大，低功耗方面的设计就显得尤为重要。

SN54LS596J is a monolithic, high-voltage, medium-current power logic 8-bit D-type latch, with eight positive edge-triggered D-type flip-flop, there is a direct clear-side, each flip-flop is the drain Open power DMOS transistor output, can provide 150mA continuous current, for the need for relatively high load power system design.

SN54LS596J是一种单片、高电压、中等电流的功率逻辑8位D型锁存器，具有8个正边沿触发的D型触发器，有一个直接清零端，每个触发器都是漏极开路功率DMOS晶体管输出，能提供150mA连续电流，专为用于需要相对高的负载功率的系统设计。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！