限流电阻

以高压真空器件内真空度和高压击穿为判据，决定高压脉冲电压幅度和限流电阻的增减，自动控制老化工艺过程。

According to the vacuum degree of the apparatus and high-voltage breakdown , the voltage of high-voltage pulse and the value of current limiting resistance were adjusted , and automatically controlled Aging technique process .

非自持放电使激光器的激发和电离过程分开，有利于使二者分别处于各自的最佳E／P值附近，放电的正阻抗特性使放电电路可以省去限流电阻，极大地提高激光器的实际效率。

In non-selfsustained discharge the excitation and ionization processes can be controlled separately , which is useful to optimize the E / P value of the discharge .

在每个MOS管KS与地之间加限流电阻与发光二极管，保护MOS管，避免短路回流现象的发生。

Adding current limiting resistors and light-emitting diode to each MOSFET between KS and ground , to protect each MOSFET to avoid the occurrence of the phenomenon of short-circuit return .

本文介绍的新型CO2激光电源，采用SCR逆变升压，甩掉了笨重的工频升压器，高压大容量滤波电容和大功率限流电阻。体积小。

In this paper , a new type of CO_2 laser Power supply is introduced . SCR inverter is used instead of heavy supply transformer , large capacitors and resistors so that it is small in size and light in weight .

实验结果显示小功率光源可以利用三端集成稳压器和限流电阻实现恒流驱动（100mA），大功率光源可以利用负反馈放大电路实现恒流驱动（1A）。

The result shows the former can used the manostat and limit current resistance , the latter can used negative feed-back amplifier to accomplish constant current driving .

研制了以Tesla变压器为核心组成的200kV脉冲电压发生器，介绍了高压脉冲变压器以及脉冲极性和限流电阻自动转换的设计、制作与试验。

A pulse voltage generator based on Tesla transformer technology is developed . The high voltage pulse transformer and the automatic switches are designed and tested .

限流电阻调节范围为2～17kΩ；

The current - limiting resistor is in the range of2 ~ 17k Ω .

它由快速开关、门极关断晶闸管（GTO）和限流电阻并联组成。限流过程包括两次电流转移：快速开关至GTO，再至限流电阻。

The fault current limiting involves two current-transferring processes , the first one is from the fast vacuum switch to the GTO , and the second is from the GTO to the current limiting resistor .

须用一个限流电阻同灯泡串联起来。

It would be necessary to connect a limiting resistor in series with the lamp .

其放电均匀稳定，可减小限流电阻值，降低外电路电功损耗。

Its stable and even discharge makes the ballast resistor smaller which reduces extra power consumption .

高压脉冲极性和限流电阻可自动转换，其性能指标满足使用要求，且操作简单、安全，性能稳定可靠。

The automatic switches are safe , reliable to meet the requirement of pulse power technology application research .

在每个开关上串联一个限流电阻或保险丝，将有助于防止这种类型的损坏。

Adding a current limiting resistor or fuse in series with each switch will help prevent this type of damage .

在恒流源设计上，本文简略给出放电电容和限流电阻的估算方法。

The estimating methods of the values of the discharge capacitor and limiting resistance in design of the constant current source are also given .

该电源采用双管正激的主电路结构，用高频变压器的电感取代了限流电阻，利用了高频变压器初级绕组的反馈电能，极大提高了电能利用率。

The using ratio of the electric energy is greatly raised by using the feedback energy from the primary winding of the high frequency transformers .

用于电解修锐前砂轮形状和表面精密修整的电火花修整部分将电源直流脉冲电解部分的输出端串连一个限流电阻就形成了电火花修整部分。

The part of EDM dressing A resistance was jointed after the output of DC pulse part to realize the EDM dressing of grinding wheel .

激光器的主放电和输出功率由外加的预电离脉冲控制，可省去限流电阻。

The main discharge and output power of the laser are controlled by applied preionization pulses . The laser can operate free of ballast resistor .

故障后，系统电流值远大于等效交流电流源值，限流电阻立刻自动投入限流。

But under fault condition , the system current is greater than the current of equivalent AC current source and the limiting resistance take effect immediately .

如果使用高压，则需要利用限流电阻，以免被测装置击穿后损坏电流开关。

If high voltage is used , current limiting resistors are needed to avoid damage to the current switches in case the device under test breaks down .

主电源直流输出特性及限流电阻选择对放电稳定性及功率输出影响很大。

The direct current output characteristics of the main supply and the selection of the ballast resistor greatly affect the glow discharge stability and the output power .

驱动电路采用恒流斩波技术，电源是脉冲供电方式，提高了电源效率，并能有效地抑制共振，无须外接影响时间常数的限流电阻，提高了高频性能。

For adopting the constant current chopper technique in the driver circuit , the efficacy of power and the capability of high frequency are improved and the resonance is suppressed .

因此，限流电阻的选择十分重要，既要限制故障电流，又不能引入太大的噪声。

It is , of course , important to choose the resistor so that it neither degrades the noise performance of the system nor allows too much current to pass under fault conditions .

在焊接电源的充电回路中设计了三相桥式半控、恒流高效充电回路，取消了限流电阻；

A three phase half controlled bridge circuit with constant current and high efficiency is designed in the charged loop of the welding power supply . So a limiting current resistance is canceled .

试验和分析表明，由于真空电弧电压比较低，真空电弧电流直接向限流电阻转移，难以达到所要求的电流转移速度和限制短路电流最大峰值。

It was shown that , due to the small vacuum arc voltage , the current-transferring is difficult to realize in such a speed that the first peak of the fault current can not be limited .

前者由并联齐纳二极管、串联限流电阻和保护熔断器构成的网络组成，具有在点燃危险环境前把过压、浪涌电流和过载电流安全转移到系统地。

The former is composed by parallel diode , series limiting resistor and protection fuses , which can transfer overload pressure , the surge current and overload current to the system " GND " before fire the dangerous environment .

仿真结果表明，增大限流电阻可以显著降低短路电流的峰值，并有利于维持非故障线的电压，但限流器上的电压也会增加。

The simulating results show that increasing resistance can drastically limit the peak value of fault current , and can maintain the line voltage of feeders without fault . On the other hand , increasing resistance will increase the voltage across the SFCL .

给出了超导限流器的数学模型，着重分析了超导限流器限流电阻和故障检测时间对短路电流峰值、非故障线电压、超导限流器上的电压的影响。

The mathematical model of SFCL and its impedance characteristics are given . The limiting resistance in SFCL and the fault detection time impact on peak value of fault current , line voltage of feeders without fault and voltage across SFCL are analysed .

电流补偿型超导限流器是一种新型的限流器拓扑，它由等效电流源、限流电阻并联后通过连接变压器串联入电力系统。

Current compensation superconducting fault current limiter is a novel topology of FCL which consists of an equivalent AC current source with a limiting resistance in parallel . It connects power system after in series with a transformer .

限流过程包括两次电流转移：快速开关至门极关断晶闸管，再至限流电阻。

The operation of the SCCL involves two current transferring processes , i.e. the fast switch transfers the short circuit current to the GTO and then the GTO to the limiting resistor .