扫扫二维码，随身浏览文档
手机或平板扫扫即可继续访问
【产品】ZG-5000-H Spec(Ch) v1.0
举报该文档为侵权文档。
举报该文档含有违规或不良信息。
反馈该文档无法正常浏览。
举报该文档为重复文档。
推荐理由：
将文档分享至：
分享完整地址
文档地址：
粘贴到BBS或博客
flash地址：
支持嵌入FLASH地址的网站使用
html代码：
&embed src='/DocinViewer-4.swf' width='100%' height='600' type=application/x-shockwave-flash ALLOWFULLSCREEN='true' ALLOWSCRIPTACCESS='always'&&/embed&
450px*300px480px*400px650px*490px
支持嵌入HTML代码的网站使用
您的内容已经提交成功
您所提交的内容需要审核后才能发布，请您等待！
3秒自动关闭窗口扫扫二维码，随身浏览文档
手机或平板扫扫即可继续访问
PCI-1761_Relay_Spec
举报该文档为侵权文档。
举报该文档含有违规或不良信息。
反馈该文档无法正常浏览。
举报该文档为重复文档。
推荐理由：
将文档分享至：
分享完整地址
文档地址：
粘贴到BBS或博客
flash地址：
支持嵌入FLASH地址的网站使用
html代码：
&embed src='/DocinViewer-4.swf' width='100%' height='600' type=application/x-shockwave-flash ALLOWFULLSCREEN='true' ALLOWSCRIPTACCESS='always'&&/embed&
450px*300px480px*400px650px*490px
支持嵌入HTML代码的网站使用
您的内容已经提交成功
您所提交的内容需要审核后才能发布，请您等待！
3秒自动关闭窗口Isolation and characterization of a glucosemannoserhamnosespeciWc
扫扫二维码，随身浏览文档
手机或平板扫扫即可继续访问
Isolation and characterization of a glucosemannoserhamnosespeciWc
举报该文档为侵权文档。
举报该文档含有违规或不良信息。
反馈该文档无法正常浏览。
举报该文档为重复文档。
推荐理由：
将文档分享至：
分享完整地址
文档地址：
粘贴到BBS或博客
flash地址：
支持嵌入FLASH地址的网站使用
html代码：
&embed src='/DocinViewer-4.swf' width='100%' height='600' type=application/x-shockwave-flash ALLOWFULLSCREEN='true' ALLOWSCRIPTACCESS='always'&&/embed&
450px*300px480px*400px650px*490px
支持嵌入HTML代码的网站使用
您的内容已经提交成功
您所提交的内容需要审核后才能发布，请您等待！
3秒自动关闭窗口52RD研发论坛已升级，老版论坛仅供浏览，请访问新版论坛：
& 手机研发论坛(Cell Phone R&D Forum)
& RFMD3225 GSM PA SPEC中的一些疑问，请教高...
论坛升级中，停止回贴功能
等级：研发工程师帖子：57被删：-13经验：267RD币：2.8来自：北京&北京注册：
&|&&|&&|&　发表于 19:07:411#
此页为旧版论坛，仅供浏览，请访问新版论坛：
1.VSWR 2:5:1怎么解释，为什么是三个数的比啊，VSWR不应该是比如1.2dB这么表示吗？？2.Max power 与 Rated power有什么区别，为什么它们的效率不一样？？3.Receive Band noise power是什么东西4.谐波里为什么4F0的谐波比3F0的还大呢？？？5.Forward isolation是什么意思？？？？？详情大家可以查阅附件~~~~麻烦高手指点~~~~~~~~真的很想搞明白这些意义~~~~~【文件名】:12531@52RD_RF3225DS_100720.pdf【格　式】:pdf【大　小】:1216K【简　介】:【目　录】:screen.width-500)this.style.width=screen.width-500;"> []
等级：研发工程师帖子：57被删：-13经验：267RD币：2.8来自：北京&北京注册：
&|&&|&&|&　发表于 19:08:322#
此页为旧版论坛，仅供浏览，请访问新版论坛：
附件为SPEC。大家快来啊，讨论起来！！！！！！！！！！！！！！
等级：实习生帖子：8被删：0经验：54RD币：2.6来自：广东&广州注册：
&|&&|&&|&　发表于 7:10:593#
此页为旧版论坛，仅供浏览，请访问新版论坛：
以下是引用liuhongtao在 19:07:41的发言：1.VSWR 2:5:1怎么解释，为什么是三个数的比啊，VSWR不应该是比如1.2dB这么表示吗？？VSWR 2.5:1。写datasheet的人，写错了标点符号。2.Max power 与 Rated power有什么区别，为什么它们的效率不一样？？Max Power是最大发射功率，Rated Power是校正的时的回退功率，一般最大功率下效率高。3.Receive Band noise power是什么东西接收频段的噪声功率。4.谐波里为什么4F0的谐波比3F0的还大呢？？？PA内部匹配的电路，重点压2Fo和3Fo，所以可能4Fo功率较大，但是之后都会加低通滤波，都滤除到-33dBm以下。5.Forward isolation是什么意思？？？？？前向隔离度，PA关闭的时候，从输入到输出的泄漏功率。详情大家可以查阅附件~~~~麻烦高手指点~~~~~~~~真的很想搞明白这些意义~~~~~【文件名】:12531@52RD_RF3225DS_100720.pdf【格　式】:pdf【大　小】:1216K【简　介】:【目　录】:screen.width-500)this.style.width=screen.width-500;">
等级：高级工程师帖子：124被删：0经验：488RD币：71.3来自：北京&西城注册：
&|&&|&&|&　发表于 10:57:344#
此页为旧版论坛，仅供浏览，请访问新版论坛：
同意3楼，补充3， 此指标Tx在RX band的杂散。补充4，通常谐波越高，功率越小；但相邻偶次和奇次谐波功率不一定高次就小。
等级：高级工程师帖子：132被删：0经验：432RD币：20.1来自：上海&浦东注册：
&|&&|&&|&　发表于 14:47:275#
此页为旧版论坛，仅供浏览，请访问新版论坛：
看看再说。
等级：资深工程师帖子：369被删：0经验：1195RD币：19.5来自：四川&成都注册：
&|&&|&&|&　发表于 11:50:046#
此页为旧版论坛，仅供浏览，请访问新版论坛：
看看再说。产品相关信息
产品名称：Isolation switch
被浏览次数：
Application
　　QA Series Isolating Switch Fuse Set,QA and QP Series Isolating Switches(hereinafterreferred to as "switch")are mainly used in the circuit of AC 50Hz(or 60Hz)and rated working voltage up to 660V.In the power supply and distribution circuit of large short circuitcurrent and low power factor,it can serve for master switch for manual infrequent operation,especially for mounting in the drawer type low-voltage complete equipment.
Model and Definition
　　The contact of QA switch is connected with fuse boby,work category AC-23,and conventional closed heating current 63-800A.Total 7 basicspecifications are available.Two sets of breakpoints on QA Isolating Switch are connected with copper conductor in series(without fuse boby),main wokcategory AC-23,and conventional free air heating current A.6 basic specifications are available.
　　 Two sets of breakpoints on QA Isolating Switch are connected with copper conductor in prallel.The circuit becones a set of contacts,main workcategory AC-21,and conventional free air heating current 250A-3150A.Total 7 basic specifications are available.
Structural Features
Normal Working Conditions
　　1.The ambient air temperature shall not exceed +40oc.The average value shall not exceed +35oc within 24 hours.The lowerlimit of ambient airtemperature is -5oc.
　　2.The height above sea level for installing the switch shall not exceed 2000m.
　　3.When at max.temperature of +40oc,relative air humidity shall not exceed 50％.Higher relative humidity such as 90％ at the temperature of 20oc,is allowed under lower temperature.Special measure shall be taken against occasional condensation caused by temp.change.
　　4.The pollution grade of environment for installing switch is 3.
　　5.The switch shall be vertically installed in the place without vibration or shock.
Structrual Features
　　1.Fully colsed structure
　　QSA series switch full closed structure ensures stable performance and improvement of work reliability.Both moving and static contacts,which cannotbe seen exteriorly,are mounted in a pressed housing made of new type electric engineering plastics.There are connecting terminals,fuse boby socket(QSA)or visible copper housing made of new type electric engineering plastics.There are connecting terminals,fuse boby socket(QSA)or visible copper conductor QA of series connection and QP of parallel connection,operation axle sleeve,and auxiliary contact socket,etc.mounted outside the housing.Dismantle or assembly is not allowed without permission for strict technique control for assembly.
　　2.Unique contact system
　　QSA Series Switch owns a unique contact system of rolling insert type,compsed of two sets of double-breakpoint each phase.In structure,rollers ofdifferent length and diameter and quantity will compose different contact system and two sets of contacts in series or parallel connection will meet the circuit of different electrical amperage and work categories.
　　Applying this contact system,the current will pass through four rollers and greatly reduce the electric repulsion when the contact closes.(theoretically,current is1/4,repulsion is 1/6).When the switch is in the state of closing and meanwhile large shortcircuit current is passing through(under the limit condition,the current may be larger than 100KA),the roller will clamp the static contact tighter as per the reversal parallel law.
　　During the movement,the touching between roller and static contacts belongs to rolling and slide firction so as to effectively avoid the occurrence offusion welding.
　　3.Independent of manpower operation
　　The operation mechanism of QA series switch is desingned with energy-storage spring.In spite of switch-on\off is operated with force
manually,themoving speed of moving contact is independent of operational force and operation speed,ensuring stable switching performance.
　　4.Advanced actuator
　　The actuator is a complete set of device transmitting the operation torque to the operation mechanism axle sleeve of switch,and the handle is the partfor operatior to hold.
　　Uthe actuator is composed of handle mounted on the panel and the driving shaft joggled with handle.The extension shaft and the couple can onlybe used when the driving shaft is not long enough.In fact,it shall take consideration of inbuilt installation of switch in the complete equipment andnever mind of inaptitude between the depth of switchgear and handle mounted on the panel.
　　Uthe handle is mounted on the panel
　　Uthe handle mechanism shall be in conformity with the requirement that the door cannot open when the switch is closed,the switch shall be inbreaking position if you want to open the door,the switch cannot be closed if the door is unclosed.
　　Uthe handle has a padlock pulling buckle.Lock the handle with the padlock after being pulled out.The handle cannot turn while in breaking or closingposition to avold error operation of non-operation.
　　Uthe driving couple shall keep 5mm free distance to the surface in parallel with the handle mounting plane so as to avoid affecting normal work.Therefore,it is ease in installation and adjustment,and that will not cause any difficulty in operation due to imprecise adjustment.
　　5.Independent auxiliary contact
　　The switch may be attached with one or two auxiliary contact boxes.Each auxiliary contact box has pair of NO and a pair of NC contacts.Auxiliarycontact box is insert type assembly.IT is unnecessary to use screw and is easy to dismantle and assemble.
　　The breaking and making of both auxiliary contact and switch are synchronous.Working principle of QSA series switch switchingin while rotating the operatswitchingoff while anticlockwise
Technical Data Conform to:IEC947-3、GB14048.3
Number of main poles
Rated insulation voltage　(V)
Ue=380hour,Uj=660;Ue=660hours,Uj=1000
Rated working voltage　(V)
AC 380、660
Conventional free air heating current　(A)
Rated working current/power
380V.AC-23.COSφ=0.35　(A/KW)
660V.AC-23.COSφ=0.35　(A/KW)
Rated blowout short-circuit current 380V　(KA)
Rated blowout short-circuit current 660V　(KA)
Mechanical life　(cycle)
Electric life　(cycle)
Max:fuse body current　(A)
Knife contact fuse tube model
(N.m)Operation moment　(N.m)
Auxiliary contact 380VAC-15　(A)
Outline and Installation Size
Technical Data Conform to:IEC947-3、GB14048.3
Number of main poles
Rated insulation voltage
Ue=380hour,Uj=660;Ue=660hours,Uj=1000
Rated working voltgae　(V)
AC 380、660
Conventional free air heating current　(V)
Rated working current/power
380V.COSF=0.35AC-23
660V.COSF=0.35AC-23　(A/KW)
660V.COSF=0.35AC-22　(A/KW)
Rated short-circuit making capability　(KA)
Rated short-time withstand current　(KA)
Mechanical life　(cycle)
Electric life　(cycle)
(N,m)Operation moment(N.M)
Auxiliary contact 380VAC-15　(A)
Technical Data Conform to:IEC947-3、GB14048.3
Number of main poles
Rated insulation voltage
Ue=380hour,Uj=660;Ue=660hours,Uj=1000
Rated working voltgae　(V)
AC 380、660
Conventional free air heating current　(V)
Rated working current/power
380V.COSF=0.95AC-21
660V.COSF=0.95AC-22　(A/KW)
660V.COSF=0.95AC-23　(A/KW)
Rated short-circuit making capability　(KA)
Rated short-time withstand current　(KA)
Mechanical life　(cycle)
Electric life　(cycle)
(N,m)Operation moment(N.M)
7.5　　　16　　16　　30
Auxiliary contact 380VAC-15　(A)
5　　　　　　　　　　5　　　　5　　　　　　　5
Outline and Installation Size
QSAS-63、25;
QSAS-125、160、200;QPS-25
QSAS-160、250、400;
QAS-400、630;
QPS-630、1000
QSAS-630;QAS-1000;
Board Installation Size