To warrant reliability of DC operation power electrical supply, all-round monitoring to parameter of storage battery operation is necessary.
为保证直流操作电源供电的可靠性，必须对蓄电池组运行参数进行全面的监测。
At the same time, problems of the DC grounding system are valuable because it is not only significant in HVDC operation but also affects the AC system nearby.
同时，直流接地极关系着高压直流输电系统的安全运行，对于附近的交流系统也有影响，其中的一些问题也十分值得研究。
Active inductors are employed as loads to expand the bandwidth and to get stable DC operation points, and the direct-coupled technique is used to increase voltage gain and reduce power dissipation.
电路采用有源电感负载来拓展带宽、稳定直流工作点，通过直接耦合技术来提高增益、降低功耗。
Substation DC system grounding of substation equipment will cause damage, at the same time the substation on the safe operation of equipment to produce a great threat to.
变电站直流系统接地将会对变电站的设备造成损害，同时对变电站各设备的安全运行产生极大威胁。
High efficiency DC brushless motor, micro chip processor control, tooth synchronous belt drive, smooth operation, noise.
高效直流无刷马达，微芯片处理器控制，齿行同步皮带传动，运行平稳，噪音极底。
Pulsed operation also allows these instruments to output current levels well beyond their DC capabilities.
这类仪器在脉冲操作模式下还能够输出大大超出其直流能力的电流值。
Therefore, the stage difference coordination problem with the operation of DC system has become a key issue.
因此，级差配合问题就成为直流系统运行中一个比较关键的问题。
As backup power supply of the DC system, the residual capacity of battery effected safe operation of DC system directly when ac power failure occurs.
蓄电池作为直流系统交流停电时的后备电源，其剩余容量直接影响了直流系统的安全运行。
To ensure normal operation of the substation, the DC system grounding fault should be detected as quickly as possible.
为保证直流系统的正常运行，查找直流接地故障的时间应尽可能缩短。
The AJAX High Power DC Filter Network consists of a properly sized choke and capacitor bank with the additional circuit elements required for safe, conservative operation.
我公司的高功率直流电源滤波电路网络包括一个尺寸适当的瓶颈和有附加电路元素的电容器，以使操作保守、安全。
The control and protection system in DC power distribution systems plays a very important role in ensuring the mass transit railway safe and reliable operation.
直流供电的控制和保护系统对确保轨道交通的安全、可靠的运行，具有举足轻重的作用。
The article presents L6598 inner structure, its lead functions, unit circuit operation philosophy and its circuit in the wide range AC/DC adapter.
文中介绍了L6598内部结构、引脚功能、单元电路工作原理及其在宽范围AC/DC适配器中的应用电路。
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。
In our research, we adopt platinum as anode lead as cathode cation membrane and filtration fabric as septum separately, electrolysis operation was carried out through electrifying DC.
本研究采用铂阳极、铅阴极，阳离子膜和滤布分别作为隔膜，通直流电进行电解操作。
According the operation mechanics of the SCES system, its main circuit containing bi-directional DC-AC-DC converter was designed and its unified model was built.
从超级电容器储能系统的运行机理出发，设计了含双向DC - AC - DC变换器的超级电容器储能系统主电路结构，并建立了其统一模型。
Preferably, both electrodes operate on a DC or AC power supply, preferably a battery, while the discharge lamp operates in the second mode of operation.
优选地，两个电极在DC或AC电源下运行，优选为在电池下运行，同时放电灯运行在第二操作模式。
DC power is a very important secondary equipment in substation, its performance and quality will have a direct bearing on the stable operation of power grids and safety equipment.
变电站直流电源是变电站非常重要的一种二次设备，其性能和质量的好坏直接关系到电网的稳定运行和设备安全。
Secondly, this paper described high-power DC drive system operation and control mechanism, and developed a system's overall program.
其次，总结阐述了大功率直流调速系统的运行和控制机理，并且制定了系统的总体方案。
Used for wrinkle-removing of all kinds of leather material. With art speed-regulating DC motor, it is easy for operation.
对各种皮料折皱之用，使用调速直流电机，操作方便。
Through the operation on a computer, control instructions can be easily given to control the brushless DC motor.
通过操作计算机可方便地给出控制指令，控制电机工作在指定状态。
Refers to the electrical generator rated voltage at rated operation conditions, the terminal voltage after the rectifier and the deduction of the DC link output voltage drop.
发电机额定电压指电机在额定工况下运行，其端子电压整流后并扣除连接线压降的直流输出电压。
Their electronically commutated brushless DC motor provides virtually maintenance-free operation over time by eliminating brush maintenance and associated brush motor failure.
其电子换向直流无刷电机通过排除刷子维护和关联电机的出错，在操作过程中提供免维护操作。
The DC drives provide the answer to the most essential needs of acceleration, deceleration, stopping, and constant velocity, with inherent shaft stiffness for successful operation of the CNC system.
直流电驱动应用自身固有的轴硬度成功地满足了操作CNC时，对最关键的加速度、减速、停止及常速度的需要。
According to temperature changes of the DC traction motor in continuous operation, the fan motor speed is controlled, and the purposes of regulation of ventilation and energy-saving are achieved.
根据直流牵引电动机在持续运行中的温升变化控制通风机的电动机转速，实现通风量调节，以达到节能目的。
The breakdown of the DC motor brush is one of the main reasons to the disruption of motor operation. This article analyzes the reasons of DC motor brush damage and gives some ways for precaution.
指出了直流电机电刷损坏是影响直流电机正常运行的主要原因之一，分析了直流电机电刷损坏的原因，并提出了预防措施。
The monopolar ground circuit operation mode of DC transmission system gives rise to excessive vibration and noise of some transformers in the power grid, which impacts the safety of equipment.
直流输电系统单极大地回路运行方式导致电网部分变压器振动加剧，噪声增大，影响了设备安全。
The normal operation of DC system is of great significance to the safety and stability of substation.
直流系统正常对于变电站安全稳定运行意义重大。
This article briefs the overall operation and maintenance situation of direct current (dc) system in Northeast power Grid Corp. in 2000 -2004.
介绍了2000 - 2004年东北电网公司直流系统的整体运行情况及管理情况。
Introduction of brushless dc motor basic composition, basic operation principle and its control method are given, brushless dc motor of the mathematics model.
介绍了无刷直流电机的基本组成、基本运行原理及其调速方法，给出了无刷直流电机的数学模型。
Because of the output of the UPS (or Inverter) is AC, its parallel operation is more difficult than DC supplies.
由于UPS(或逆变器)的输出是正弦交流电，它的并联运行比直流电源复杂的多。
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