1) electric cut-over
带电割接
2) cutting with operation
带业务割接
1.
From the practice example of UPS cutting with operation,it sets froth the conditions and key points for the cutting and shows the implementation steps.
结合一次UPS系统带业务割接典型实例,阐述了割接的条件和关键点,并给出了具体的实施步骤。
3) cutting of power supply
电源割接
1.
It describes how to change a silicon-control power supply into switch mode power supply by constructing the transmit AC and DC distribution units; presents the way and cautions on the cutting of power supply for some common equipment, such as: transmission equipment, data e-quipment and exchanging machine.
介绍了通过设立临时交直流供电系统,把相控电源更换成开关电源,以及传输、数据、交换设备等几种常见的电源割接方法和注意事项。
4) exchanger power cut over
交换机电源割接
5) cutover
[英]['kʌt,əuvə] [美]['kʌt,ovɚ]
割接
1.
Mixed-number allocation used in cutover switches
浅谈混合放号在交换机割接中的应用
2.
On the base of the architecture and functionality of OTN transmission system,this thesis introduces the application of OTN transmission network in metro communication system,and then analyses the solu-tion and attention items for OTN transmission cutover under this condition detailedly.
本文阐述了OTN(开放式传输网络)传输网的系统构成与功能实现,介绍了OTN在地铁通信系统中的应用,详细分析了在此环境下OTN传输网割接的解决办法及注意事项。
3.
Traditionally, when a radio network site is moved, it is necessary to interrupt existing services and perform a step-by-step serial cutover, which involves complex arrangements and huge resource investments.
传统的无线网络站点搬迁,需要中断现网服务,而且只能串行逐片割接,组织工作复杂,资源投入巨大,因此亟需探讨一种低风险、快速建网的搬迁割接方案。
6) changeover
[英]['tʃeɪndʒəʊvə(r)] [美]['tʃendʒ'ovɚ]
割接
1.
The types and methods of telecom power supplies changeover are introduced, and then how to lay out a scheme of changeover with electricity and some notice are discussed, at last an application example is presented.
介绍了通信电源割接的分类和方法,讨论了带电割接方案的制订和注意事项,并给出了应用实例。
2.
The article introdues several ways of DC power changeover,describes some questions which should to be noticed.
结合四川电信公司正在进行机房整治的实际,主要介绍几种直流电源的割接方法和割接时应注意的事项,以供参考。
3.
To achieve this on a user s data conversion program of exploration and development of user Changeover of user data,state conversion system,and the production of.
本文就实现一个用户数据转换的方案展开探讨,开发了用户割接中的用户数据、状态转换的系统,并在生产中得到充分的应用验证。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条