The preventive maintenance for the commutator of the DC machine is of great importance.
大容量直流电机是轧钢车间的主体设备，对其换向器的维护工作更显得重要。
In the separately excited dc machine, the field winding is excited from a separate source.
对于它励直流电动机，励磁线圈由一个单独的电源来励磁。
Maintenance practices for the commutator of the DC machine in the steel mill are introduced in this paper.
本文着重介绍了冶金企业轧钢车间大型直流电机换向器的现场维护工作和体会。
If the excitation current is too great, adopting DC machine excitation would require more collecting rings.
如果励磁电流太大，采用直流机励磁则会引起集电环的对数增多。
A rotating commutator on the dc machine, used as an exciter, was a common means for achieving rectification in the past.
在过去，直流励磁机上的旋转整流子是用作整流的普遍措施。
Accurate calculation of winding inductance parameter is important to the dynamic performance analysis of PM (permanent magnet) brushless DC machine.
绕组电感参数的准确计算对于永磁无刷直流电机的动态性能分析具有重要的意义。
Create ha.cf on the machine assigned as the DC (designated coordinator).
在分配为DC (designatedcoordinator)的机器上创建ha . cf。
Comparing with frequency converting driving system for asynchronous machine and adjustable speed for DC motor, the driving system has a wide application foreground.
与变频异步电机驱动系统和直流电机调速系统相比，开关磁阻电机驱动系统有着广阔的应用前景。
All that he and his colleagues want at their Sunlight Labs—part of a non-profit group based in Washington, DC—is machine-readable data.
在阳光实验室（Sunlight Labs）——位于华盛顿特区的一家非营利组织的一部分，他和他的同事想要的只是机器可读数据。
The method of finite state machine together with PWM circuit is given to realize the algorithms of Voltage Space Vector control and 120 electrical Angle changing phase control of DC brushless motor.
针对电机空间矢量控制和直流无刷电机120电角度换相控制算法的电路实现，采用了控制状态机与PWM发生电路相结合的方法。
This paper mainly introduced the development of a reconfigurable automatic assemble machine for DC plug and particularly discussed the developing process.
本文主要介绍一种基于可重构的DC插头端子自动装配机的开发，并详细论述了其开发过程。
Though analyzing the disadvantages of the brush motor in ZD6 type Electric Switch Machine, this paper introduces the replacement of brush motor by brushless DC motor and specific reliability measures.
分析了ZD6型电动转辙机有刷电机的缺点，介绍了无刷直流电机取代有刷电机的方案及可靠性措施。
This machine is a new kind of generator which comprises DC armature winding connected with a polyphase full wave rectifier bridge.
此发电机是一种新型发电机，它由直流机电枢绕组外接多相全波整流桥组成。
The characteristic of DC drive for paper machine is compared with AC drive and how to select the drive scheme for high speed paper machine and the capital investment are discussed.
比较了直流传动和变频传动在纸机上应用的各自特点，对今后我国高速纸机传动方案的选择提出了看法，并就其一次性投入和费用等做了讨论。
What's more, the paper researches Expert system of fault diagnosis to ground in DC power in detail, especially focusing on the foundation of repository and the design of inference machine.
对直流电源系统接地故障诊断专家系统作了较深入研究，着重研究了知识库的建立和推理机的设计。
Largely used in color tv, program-controled exchange machine, computer, telephone. fox and the instrumental circuit for the purpose of DC, impulse and AC at low voltage.
该产品广泛使用于彩电、程控交换视机、计算机、电话机、传真机及仪器、 仪表电 路中作直流脉动、脉冲及低压交流功能之用。
DC series submerged arc welding machine is a multi-functional welding power unit controlled by total-digital thyristor and applicable to both semiautomatic and automatic welding.
DC系列埋弧焊机是一种采用全数字晶闸管控制可以应用于半自动和自动焊接的多功能焊接电源。
At present, the rewinding machine ac drive instead of DC drive in the paper machinery industry has become a trend.
目前，复卷机交流传动代替直流驱动器在造纸机械行业已成为一种趋势。
And the operation of various gas-shielded welding, ac and DC arc welding machine, stud welding machine, air plasma cutting machines and other ancillary products.
且经营各种气体保护焊机、交直流氩弧焊机、螺柱焊机、空气等离子切割机等配套产品。
A generator system that includes a three-phase ac machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the ac current from the machine to a DC current.
高效发电机。一种发电机系统包括三相ac电机和应用低导通电阻MOSFET开关的有源整流器电桥，用于将来自电机的AC电流转换为DC电流。
In this system, the PLC and the DC speed-regulator are combined to simulate the operation of flying saw machine.
采用直流调速器和可编程控制器的结合来实现飞锯机模拟。
AT89S52 as a display module to control the core of achieving power amplifier output power, DC power supply of power and machine efficiency, for display.
AT 89s52作为显示模块的控制核心，实现功率放大器输出功率、直流电源的供给功率和整机效率功能的显示。
DC high voltage (or DC leakage current) test is an effective method of technical diagnosis of electric machine.
直流高电压(或称直流泄漏电流)试验，是一种行之有效的电机技术诊断方法。
The quality of aluminum_plastic composite tube is affected by plastic extrude machine, mode, welding machine of TIG AC/DC, traction engine etc. and also affected by raw material.
铝塑复合管产品质量直接受塑料挤出机、模具、交流脉冲氩孤焊机、牵引机等设备的机械性能及原材料质量的影响。
This machine is drived by DC motor and gets a synchronizer. The rotator speed can be adjusted according to the lacquer character and film thickness.
电机驱动，并装设有同步器，配合定速驱动滚轮组同步运转，可依各种涂料特性及膜层来调整各滚轮之转速。
In the end, it discussed the protection system of DC voltage-stabilized source and put forward the principles of protection system design and the measure of the whole machine protecting.
最后讨论了稳压电源的保护系统，提出保护系统设计的原则和整机保护的措施。
It will introduce us a new SAW process by adopting DC pulse current. They design and develop pulse current controller as core of single plate machine.
提出了一种采用直流脉冲电流的埋弧焊工艺，研制开发了以单片机为核心的脉冲电流控制器。
We have obtained the similar form between SCR DC drive and this system by defining a machine-electro time constant b.
由于定义出串级调速下的机电时间常数B，因此得出与SCR直流拖动相似的形式。
A 150a DC TIG welding machine is developed, using specially designed thyristor rectifier and IC control circuit, which is simple, reliable and of high quality.
研制了一种150a直流tig焊机，采用特殊的晶闸管主电路和集成电路控制技术，具有简单、可靠和高性能的特点。
A 150a DC TIG welding machine is developed, using specially designed thyristor rectifier and IC control circuit, which is simple, reliable and of high quality.
研制了一种150a直流tig焊机，采用特殊的晶闸管主电路和集成电路控制技术，具有简单、可靠和高性能的特点。
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