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   隔离输出 在 电力工业 分类中 的翻译结果: 查询用时:0.256秒
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隔离输出
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  “隔离输出”译为未确定词的双语例句
    The hardware designs of the module adopt high-linearity analog Optic-couplers and Optic-coupler-switches to realize input-signal amplified isolating and the isolation of output signal effectively.
    测控单元的硬件设计中采用高精度线性光耦和光耦开关实现信号前向通道的隔离放大与指令信号的隔离输出,有效地实现了系统的隔离抗干扰;
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    Taking DSP as the inside core,backstage software control the act of the protection equipments by the sampling signal which flows from DSP to photoelectrical insulation. Thus the large transformer protection achieves.
    整个大型变压器保护系统以DSP为内核,采样信号经DSP判断处理后经过光电隔离输出给保护设备,后台软件控制保护设备动作,从而实现对大型变压器的保护。
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  isolated output
A paper tape data-handling system is described which can present 288 bits of information simultaneously; each bit having its own isolated output.
      


The principle of new-solid-state short-circuit fault-current limiter (FCL) is presented. A new kind of power supply with multiple isolated outputs used for driving of thyristors in FCL is developed, and a new driving-circuit topology for SCR is also presented. The waveform with the rise-time up to lμs, which is generated by driving-circuit developed here, is able to ensure fast turn-on of SCR. Besides, the developed strong triggering pulse with time-width of 100μs will ensure the reliability of triggering circuit....

The principle of new-solid-state short-circuit fault-current limiter (FCL) is presented. A new kind of power supply with multiple isolated outputs used for driving of thyristors in FCL is developed, and a new driving-circuit topology for SCR is also presented. The waveform with the rise-time up to lμs, which is generated by driving-circuit developed here, is able to ensure fast turn-on of SCR. Besides, the developed strong triggering pulse with time-width of 100μs will ensure the reliability of triggering circuit.

介绍了新型固态短路限流器的工作原理 ,给出了装置结构布置方式 ,设计了用于该限流器的多路隔离输出电流源为触发驱动系统供电 ,同时给出了晶闸管驱动电路拓扑结构。设计的驱动电路输出波形上升沿约 1μs,保证了可控硅器件快速导通 ,强触发宽度 10 0 μs,保证了触发可靠性。

A design and realization method of a practical programmable multi-channel power system are introduced. The power system takes C8051F020 as the central control unit, and takes the VICOR DC-DC power model as the main power support unit. It can output several voltages stably. The value of voltage and current are sampled separately by MAX186 and MAX472, then displayed on the screen. What 's more, the system can be remote controlled by a computer, and it would be self-protected when the voltage and the current is...

A design and realization method of a practical programmable multi-channel power system are introduced. The power system takes C8051F020 as the central control unit, and takes the VICOR DC-DC power model as the main power support unit. It can output several voltages stably. The value of voltage and current are sampled separately by MAX186 and MAX472, then displayed on the screen. What 's more, the system can be remote controlled by a computer, and it would be self-protected when the voltage and the current is out of the threshold value set by the user. Practice has proved that the adjust range of the voltage can achieve 50%-110%, and the error is lower that 1. 5%, the whole system can be simply operated and runs stably. It has a preferable practicability and economy.

介绍了一种实用的可编程电源系统的设计与实现,该系统以C8051F020单片机为中央控制单元,以VICOR DC-DC系列电源模块为主供电单元,能够多通道、全隔离地输出多路稳定的电压,分别利用MAX186和MAX472对输出的电压值和电流值进行采样, 并将采样结果实时地显示在屏幕上;设计了过(欠)压和过流自动保护的功能,同时可以通过计算机的串口对其进行遥控操作,实践表明,该电源系统电压调整范围可达50%~110%,调压误差<1.5%,整个系统操作简单,运行稳定,具有较好的实用性和经济性。

In the process of power transformer protection, differential relays of a large transformer are prone to maloperation during magnetic inrush.In order to solve this problem,setting out from the transformer electromagnetism characteristic,using the two transient variable of current and voltage,the paper proposes a transformer protective relaying algorithm using the ratio of induced voltages of the primary and secondary windings.Taking DSP as the inside core,backstage software control the act of the protection equipments...

In the process of power transformer protection, differential relays of a large transformer are prone to maloperation during magnetic inrush.In order to solve this problem,setting out from the transformer electromagnetism characteristic,using the two transient variable of current and voltage,the paper proposes a transformer protective relaying algorithm using the ratio of induced voltages of the primary and secondary windings.Taking DSP as the inside core,backstage software control the act of the protection equipments by the sampling signal which flows from DSP to photoelectrical insulation.Thus the large transformer protection achieves.New criterion can distinguish internal fault current from magnetic inrush quickly and reliably acts of export are dependable and effective.

在电力变压器保护过程中,励磁涌流可能导致大型变压器差动继电保护误动作,为了解决此问题,从变压器电磁特性出发,以电流和电压两个暂态变量为基础,提出了利用主侧和二次侧绕组的感应电压比来实现变压器继电保护的方法。整个大型变压器保护系统以DSP为内核,采样信号经DSP判断处理后经过光电隔离输出给保护设备,后台软件控制保护设备动作,从而实现对大型变压器的保护。新判据能够快速可靠地判别变压器内部故障电流和励磁涌流;出口动作具有较高的可靠性和时效性。

 
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