Direct current spot welder with secondary rectification is more and more widely used in the industry because of its high power factor and balanced load on three phases.
0在PC机上实现串行通讯和焊接电流波形显示的软件方案 ;分析了典型单脉冲、双脉冲、2周期单脉冲焊接电流波形和网压上升 ,下降时的监控 不监控对比波形 ,以此直观地说明三相次级整流点焊的主要特征和优势 ,以及恒流监控的效果。
Voltage polarity's influence on projection welding process of phosphorized weldment by 3-phase secondary rectification;
电压极性对表面磷化构件三相次级整流凸焊过程的影响
Rectifier for a two-stage matrix converter using RB-IGBT
基于RB-IGBT的双级矩阵变换器整流级电路
Liquid Crystal Displaying Weld Current Waveform and Controlling for a Secondary Rectifying Spot Welding;
次级整流点焊电流波形液晶显示与控制
On the Upgrade Mode of Logostics Industry Cluster Based on Logistics Chain Integration
基于物流链整合的物流产业集群升级模式研究
Research on RCD Snubber for Rectifier Circuit of 15 kW Full-bridge Converter
大功率全桥变流器次级整流吸收电路研究
Investigation on Single Stage Asymmetrical Half-Bridge Converter with Synchronous Rectification;
同步整流单级不对称半桥变换器的研究
Consumer Spending Flows ·Consumption Structure Adjustment·Consumption Structure Upgrading;
居民消费支出流向·消费结构调整·消费结构升级
The Landscape Comprehensive Sub- River Regulation Research for the Main Districts of Chongqing
重庆市主城区次级河流景观综合整治策略研究
Scherbius Variable-speed Control of Winding Induction Drive Motor Using Double PWM Rectifier
基于双PWM整流器绕线异步电机串级调速控制
Research on Current Protection Method for Ultra Short Lines on Cascading Switching Station
级联开闭所超短线路电流保护整定方法研究
A novel control strategy for the PWM rectifier in cascaded multilevel converter
四象限级联型多电平变换器的PWM整流器控制
Research of Single-Stage PFC Converter with Asymmetrical Half-Bridge and Current-Doubler Rectifier;
不对称半桥倍流整流单级功率因数校正变换器的研究
AC self-rectifying wet-type valve
交流自整流湿式整流管
However, instead of passing out of the regulator, the gas flows into the second stage where the pressure is moderated.
但是,气体不是排出调整器,而是流入第二级并得到缓和。
Deepen Hierarchical management and Improve the whole Quality to Shape Competition for work;
深化等级管理提高整体素质 形成竞争上岗环流格局
Control system design and mathematic model of three-phase DC resistance secondary rectification welding power supply
三相次级整流阻焊电源控制系统数学模型及结构设计
synchronous commutator type rectifier
同步整流子式整流器
Combined with the new theories, ideas and technologies which dealing with the water pollution, countermeasures are brought forward for river pollution control and remediation in the secondary streams of the Three Gorges reservoir.
并结合国内外治理河流的新观念、技术、思路,提出了三峡库区次级河流的整治对策。
Based on the change of the traditional opinion about controlling the water environment of river, the water quality contamination status of the secondary streams in the Three Gorges reservoir is analyzed.
本文基于传统工程治理河流理念的转变,对三峡库区次级河流整治中存在的问题进行了分析。
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