Quick Search


Tibetan singing bowl music,sound healing, remove negative energy.

528hz solfreggio music -  Attract Wealth and Abundance, Manifest Money and Increase Luck



 
Your forum announcement here!

  Free Advertising Forums | Free Advertising Board | Post Free Ads Forum | Free Advertising Forums Directory | Best Free Advertising Methods | Advertising Forums > Post Your Free Ads Here in English for Advertising .Adult and gambling websites NOT accepted. > Business to Business Ads:

Business to Business Ads: This forum is for posting ads that would be of interest to other Business Owners. Things like Marketing Services, Supply Services, and Business Essentials.

Reply
 
Thread Tools Display Modes
Old 07-26-2011, 02:29 AM   #1
qdsk84pdyq
Major
 
Join Date: Mar 2011
Posts: 617
qdsk84pdyq is on a distinguished road
Default 【清大圣科与消费者携手打击骗子】变频器工作原理,变

清大圣科科技有限公司×× 其工作原理如下图所示××清大圣科×清大圣科电焊条×清 大圣科电焊条设备×清大金桥×清大金桥电焊条设备×清大圣科电焊条& times;www.qhsk.cn×清大圣科科技有限公司××
交-直-交型变频器的工作原理是借助微电子器件、电力电子器件和控制技术,先将工频电源经过二极管整流成直 流电,再由电力电子器件把直流电逆变为频率可调的交流电源××清大圣科&time s;清大圣科电焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条 设备×清大圣科电焊条×www.qhsk.cn×
需要设计一台专用的装置,该装置的一端和电网电源连接,以接受来自电网中固定频率的电源的电能;另一端和电 动机连接,为电动机提供频率可变的交流电源××清大圣科×清大圣科电 焊条×清大圣科电焊条设备×清大金桥×清大金桥电焊条设备&time s;清大圣科电焊条×www.qhsk.cn×清大圣科科技有限公司&times ;×
至于变频器工作原理笔者就简单的跟大家说说,就以常见的交-直-交型变频器为例,简要说明一下变频器的工作 原理××清大圣科×清大圣科电焊条×清大圣科电焊条设备 ×清大金桥×清大金桥电焊条设备×清大圣科电焊条×ww w.qhsk.cn×清大圣科科技有限公司××
这种装置就是变频器××清大圣科×清大圣科电焊条×清大 圣科电焊条设备×清大金桥×清大金桥电焊条设备×清大圣科电焊条&t imes;www.qhsk.cn×清大圣科科技有限公司××
若直接将电网的交流电源接至交流电动机,是无法改变通入交流电动机的电源频率,无法实现电动机的变频调速& times;×清大圣科×清大圣科电焊条×清大圣科电焊条设备&ti mes;清大金桥×清大金桥电焊条设备×清大圣科电焊条×www.q hsk.cn×清大圣科科技有限公司××
相关的主题文章:


【清大圣科与消费者携手打击骗子】钨极气体保护电弧焊

【清大圣科与消费者携手打击骗子】气体保护电弧焊的性

【清大圣科与消费者携手打击骗子】我国焊材的市场需求

【清大圣科与消费者携手打击骗子】焊接电弧现象的解析技术

手工焊电弧焊多层焊

【清大圣科与消费者携手打击骗子】焊接的工艺单面焊双面成形焊缝等

【清大圣科与消费者携手打击骗子】焊接设备系统结构特点

【清大圣科与消费者携手打击骗子】电焊的技巧
qdsk84pdyq is offline   Reply With Quote

Sponsored Links
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT. The time now is 10:28 AM.

 

Powered by vBulletin Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Free Advertising Forums | Free Advertising Message Boards | Post Free Ads Forum